TY  - CONF
AU  - Sarap, Nataša
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12231
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Quantification of radioactive metabolite Sr-90 in environmental samples
SP  - 203
EP  - 203
DO  - 10.21175/rad.abstr.book.2023.34.12
ER  - 

@conference{
author = "Sarap, Nataša and Janković, Marija and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana",
year = "2023",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Quantification of radioactive metabolite Sr-90 in environmental samples",
pages = "203-203",
doi = "10.21175/rad.abstr.book.2023.34.12"
}

Sarap, N., Janković, M., Krneta Nikolić, J., Rajačić, M.,& Vukanac, I.. (2023). Quantification of radioactive metabolite Sr-90 in environmental samples. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 203-203.
https://doi.org/10.21175/rad.abstr.book.2023.34.12

Sarap N, Janković M, Krneta Nikolić J, Rajačić M, Vukanac I. Quantification of radioactive metabolite Sr-90 in environmental samples. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:203-203.
doi:10.21175/rad.abstr.book.2023.34.12 .

Sarap, Nataša, Janković, Marija, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, "Quantification of radioactive metabolite Sr-90 in environmental samples" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):203-203,
https://doi.org/10.21175/rad.abstr.book.2023.34.12 . .

TY  - CONF
AU  - Vukašinović, Ivana
AU  - Todorović, Dragana
AU  - Krneta-Nikolić, Jelena D.
AU  - Rajačić, Milica
AU  - Janković, Marija M.
AU  - Sarap, Nataša
AU  - Šćekić, Julija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11945
AB  - Jedan od značajnih načina kontrole rada termoelektrana (TE) na ugalj je kontinuirano praćenje vrednosti koncentracija aktivnosti radionuklida prirodnog porekla sadržanih prvenstveno u uglju, a potom i uzorcima pepela i šljake kao glavnim produkatima sagorevanja uglja koje je zbog svoje obilne proizvodnje neophodno odlagati na deponije otpada. Koncentracije aktivnosti prirodnih radionuklida 238U, 235U, 226Ra, 210Pb, 232Th i 40K, koje bi u životnoj sredini potencijalno mogle biti preraspodeljene kao posledica rada TE, podležu redovnoj kontroli u uzorcima uglja, šljake, elektrofilterskog pepela, kao i u uzorcima sakupljenim sa deponija pepela, na aktivnoj i pasivnoj kaseti, i zemljištu uzorkovanom na manjoj i većoj udaljenosti od TE. Predmet ovoga rada je analiza rezultata višegodišnjih merenja obavljenih u periodu od 2010. do 2022. godine. Godišnje vrednosti koncentracija aktivnosti izmerene za svaki ispitivani radionuklid i svaku od sedam vrsta uzoraka posmatrane su kao hronološki nizovi podataka koji čine diskretne vremenske serije za koje su rezultati statističke analize ukazivali da se mogu opisati kao procesi tzv. belog šuma.
AB  - One of the most important means of controlling the operation of coal-fired power plant (CFPP) is the continuous monitoring of naturally occurring activity concentrations of radionuclides contained primarily in coal and, consequently, in ash and slag samples, the main coal combustion products that must be disposed of in landfills due to their high production. The activity concentrations of the naturally occurring radionuclides 238U, 235U, 226Ra, 210Pb, 232Th, and 40K, which could potentially be released into the environment as a result of the CFPP operation, are regularly monitored in the samples of coal, slag, and fly ash, as well as in the samples of ash piles on the active and passive cassettes and in the soil sampled at lesser and greater distances from the CFPP. The aim of this work is to analyse the results of the multi-year activity concentration measurements carried out in the period from 2010 to 2022. The annual activity concentration values measured for each studied radionuclide and each of the seven sample types were observed as a chronological sequence of data forming discrete time series, which, according to the results of statistical analysis, may be described as white noise processes.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Raspodela koncentracija aktivnosti prirodnih radionukida u uzorcima životne sredine kao posledica rada termoelektrane “Kolubara” u periodu 2010 – 2022. godine
T1  - The Activity Concentration Distributions of Naturally Occurring Radionuclides in the Environmental Samples as a Result of the Operation of the “Kolubara” Coal-Fired Power Plant in the Period of 2010 – 2022.
SP  - 62
EP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11945
ER  - 

@conference{
author = "Vukašinović, Ivana and Todorović, Dragana and Krneta-Nikolić, Jelena D. and Rajačić, Milica and Janković, Marija M. and Sarap, Nataša and Šćekić, Julija",
year = "2023",
abstract = "Jedan od značajnih načina kontrole rada termoelektrana (TE) na ugalj je kontinuirano praćenje vrednosti koncentracija aktivnosti radionuklida prirodnog porekla sadržanih prvenstveno u uglju, a potom i uzorcima pepela i šljake kao glavnim produkatima sagorevanja uglja koje je zbog svoje obilne proizvodnje neophodno odlagati na deponije otpada. Koncentracije aktivnosti prirodnih radionuklida 238U, 235U, 226Ra, 210Pb, 232Th i 40K, koje bi u životnoj sredini potencijalno mogle biti preraspodeljene kao posledica rada TE, podležu redovnoj kontroli u uzorcima uglja, šljake, elektrofilterskog pepela, kao i u uzorcima sakupljenim sa deponija pepela, na aktivnoj i pasivnoj kaseti, i zemljištu uzorkovanom na manjoj i većoj udaljenosti od TE. Predmet ovoga rada je analiza rezultata višegodišnjih merenja obavljenih u periodu od 2010. do 2022. godine. Godišnje vrednosti koncentracija aktivnosti izmerene za svaki ispitivani radionuklid i svaku od sedam vrsta uzoraka posmatrane su kao hronološki nizovi podataka koji čine diskretne vremenske serije za koje su rezultati statističke analize ukazivali da se mogu opisati kao procesi tzv. belog šuma., One of the most important means of controlling the operation of coal-fired power plant (CFPP) is the continuous monitoring of naturally occurring activity concentrations of radionuclides contained primarily in coal and, consequently, in ash and slag samples, the main coal combustion products that must be disposed of in landfills due to their high production. The activity concentrations of the naturally occurring radionuclides 238U, 235U, 226Ra, 210Pb, 232Th, and 40K, which could potentially be released into the environment as a result of the CFPP operation, are regularly monitored in the samples of coal, slag, and fly ash, as well as in the samples of ash piles on the active and passive cassettes and in the soil sampled at lesser and greater distances from the CFPP. The aim of this work is to analyse the results of the multi-year activity concentration measurements carried out in the period from 2010 to 2022. The annual activity concentration values measured for each studied radionuclide and each of the seven sample types were observed as a chronological sequence of data forming discrete time series, which, according to the results of statistical analysis, may be described as white noise processes.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Raspodela koncentracija aktivnosti prirodnih radionukida u uzorcima životne sredine kao posledica rada termoelektrane “Kolubara” u periodu 2010 – 2022. godine, The Activity Concentration Distributions of Naturally Occurring Radionuclides in the Environmental Samples as a Result of the Operation of the “Kolubara” Coal-Fired Power Plant in the Period of 2010 – 2022.",
pages = "62-70",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11945"
}

Vukašinović, I., Todorović, D., Krneta-Nikolić, J. D., Rajačić, M., Janković, M. M., Sarap, N.,& Šćekić, J.. (2023). Raspodela koncentracija aktivnosti prirodnih radionukida u uzorcima životne sredine kao posledica rada termoelektrane “Kolubara” u periodu 2010 – 2022. godine. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 62-70.
https://hdl.handle.net/21.15107/rcub_vinar_11945

Vukašinović I, Todorović D, Krneta-Nikolić JD, Rajačić M, Janković MM, Sarap N, Šćekić J. Raspodela koncentracija aktivnosti prirodnih radionukida u uzorcima životne sredine kao posledica rada termoelektrane “Kolubara” u periodu 2010 – 2022. godine. in 32. simpozijum DZZSCG : zbornik radova. 2023;:62-70.
https://hdl.handle.net/21.15107/rcub_vinar_11945 .

Vukašinović, Ivana, Todorović, Dragana, Krneta-Nikolić, Jelena D., Rajačić, Milica, Janković, Marija M., Sarap, Nataša, Šćekić, Julija, "Raspodela koncentracija aktivnosti prirodnih radionukida u uzorcima životne sredine kao posledica rada termoelektrane “Kolubara” u periodu 2010 – 2022. godine" in 32. simpozijum DZZSCG : zbornik radova (2023):62-70,
https://hdl.handle.net/21.15107/rcub_vinar_11945 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Jelić, Ivana
AU  - Šljivić-Ivanović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12169
AB  - U radu je razmatran potencijalni odnos između dobijenih rezultata za koncentraciju tricijuma u kišnici i rekama, Savi i Dunavu, u Beogradu. Uzorkovanja su vršena svakog meseca tokom 2021. godine. Svi uzorci su koncentrisani primenom metode sa elektrolitičkim obogaćenjem, dok je za detekciju tricijuma korišćen tečni scintilacioni spektrometar. Dobijeni rezultati korišćeni su za izračunavanje količine tricijuma deponovane po m2 površine, kao i prosečnog toka tricijuma u rekama na osnovu protoka vode. Dobijena distribucija tricijuma tumačena je u skladu sa meteorološkim i hidrološkim parametrima.
AB  - The potential relationship between the obtained results for the tritium concentration in precipitation and in the Sava and Danube River in Belgrade was analyzed. Sampling was done during 2021. All samples were concentrated using the method with electrolytic enrichment, while a liquid scintillation spectrometer was used for tritium detection. The obtained results were used to calculate the amount of tritium deposited per m2 of surface as well as to estimate the average flow of tritium in rivers based on river water flow. The obtained distribution of tritium was interpreted in accordance with meteorological and hydrological parameters.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Potencijalni odnos između koncentracije tricijuma u kišnici i rekama
T1  - Relationship Between Tritium Concentrations in Precipitation and Rivers
SP  - 80
EP  - 85
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12169
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Jelić, Ivana and Šljivić-Ivanović, Marija",
year = "2023",
abstract = "U radu je razmatran potencijalni odnos između dobijenih rezultata za koncentraciju tricijuma u kišnici i rekama, Savi i Dunavu, u Beogradu. Uzorkovanja su vršena svakog meseca tokom 2021. godine. Svi uzorci su koncentrisani primenom metode sa elektrolitičkim obogaćenjem, dok je za detekciju tricijuma korišćen tečni scintilacioni spektrometar. Dobijeni rezultati korišćeni su za izračunavanje količine tricijuma deponovane po m2 površine, kao i prosečnog toka tricijuma u rekama na osnovu protoka vode. Dobijena distribucija tricijuma tumačena je u skladu sa meteorološkim i hidrološkim parametrima., The potential relationship between the obtained results for the tritium concentration in precipitation and in the Sava and Danube River in Belgrade was analyzed. Sampling was done during 2021. All samples were concentrated using the method with electrolytic enrichment, while a liquid scintillation spectrometer was used for tritium detection. The obtained results were used to calculate the amount of tritium deposited per m2 of surface as well as to estimate the average flow of tritium in rivers based on river water flow. The obtained distribution of tritium was interpreted in accordance with meteorological and hydrological parameters.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Potencijalni odnos između koncentracije tricijuma u kišnici i rekama, Relationship Between Tritium Concentrations in Precipitation and Rivers",
pages = "80-85",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12169"
}

Janković, M., Sarap, N., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Jelić, I.,& Šljivić-Ivanović, M.. (2023). Potencijalni odnos između koncentracije tricijuma u kišnici i rekama. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 80-85.
https://hdl.handle.net/21.15107/rcub_vinar_12169

Janković M, Sarap N, Krneta Nikolić J, Rajačić M, Vukanac I, Jelić I, Šljivić-Ivanović M. Potencijalni odnos između koncentracije tricijuma u kišnici i rekama. in 32. simpozijum DZZSCG : zbornik radova. 2023;:80-85.
https://hdl.handle.net/21.15107/rcub_vinar_12169 .

Janković, Marija, Sarap, Nataša, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Jelić, Ivana, Šljivić-Ivanović, Marija, "Potencijalni odnos između koncentracije tricijuma u kišnici i rekama" in 32. simpozijum DZZSCG : zbornik radova (2023):80-85,
https://hdl.handle.net/21.15107/rcub_vinar_12169 .

TY  - CONF
AU  - Sarap, Nataša
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Stanić, Vojislav
AU  - Jelić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12170
AB  - Sprovedeno istraživanje je usmereno na analizu trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom zemljištu i usevima višegodišnjeg oglednog polja. Analiza je urađena primenom akreditovane metode za određivanje ukupne alfa i ukupne beta aktivnosti u čvrstim matriksima. Merenja su obavljena u Laboratoriji za zaštitu od zračenja i zaštitu životne sredine Instituta za nuklearne nauke “Vinča” na niskofonskom gasnom proporcionalnom brojaču Thermo Eberline FHT 770T. Izmerene vrednosti ukupne alfa aktivnosti variraju od 158 Bq/kg do 324 Bq/kg i ukupne beta aktivnosti od 600 Bq/kg do 1324 Bq/kg za uzorke zemljišta. Za uzorke biljnih kultura vrednosti ukupne alfa aktivnosti su u intervalu od 5 Bq/kg do 167 Bq/kg suve materije, dok su vrednosti ukupne beta aktivnosti u intervalu od 180 Bq/kg do 584 Bq/kg suve materije. Rezultati istraživanja su značajni, jer daju osnovne radiološke informacije od vitalnog značaja za ispitivano područje. Ovo je prvi pokušaj generisanja osnovnih podataka o radijacionom opterećenju zemljišta i biljnih kultura poljoprivrednog ekosistema alfa i beta emiterima, koji su određeni skrining metodom za monitoring životnog okruženja.
AB  - The conducted research is focused on the analysis of the trend of changes in gross alpha and gross beta activity in agricultural soil and crops of perennial experimental fields. The analysis was performed using an accredited method for determining gross alpha and gross beta activity in solid matrix. The measurements were performed in the Radiation and Environmental Protection Department in Vinča Institute of nuclear Sciences on a low-level gas proportional counter Thermo Eberline FHT 770T. The measured values of gross alpha activity varied from 158 Bq/kg to 324 Bq/kg, and from 600 Bq/kg to 1324 Bq/kg for the gross beta activity in soil samples. For plant samples, values ranged from 5 Bq/kg to 167 Bq/kg of dry matter, and from 180 Bq/kg to 584 Bq/kg of dry matter for gross alpha and gross beta activity, respectively. The results of the research are significant, because they provide basic radiological information of vital importance for the investigated area. This is the first attempt to generate data base on the radiation load of soil and crops of the agricultural ecosystem with alpha and beta emitters, which were determined by the screening method for environmental monitoring.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Analiza trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom ekosistemu
T1  - Analysis of Trend of the Gross Alpha and Gross Beta Activity in the Agricultural Ecosystem
SP  - 86
EP  - 92
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12170
ER  - 

@conference{
author = "Sarap, Nataša and Janković, Marija and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Stanić, Vojislav and Jelić, Ivana",
year = "2023",
abstract = "Sprovedeno istraživanje je usmereno na analizu trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom zemljištu i usevima višegodišnjeg oglednog polja. Analiza je urađena primenom akreditovane metode za određivanje ukupne alfa i ukupne beta aktivnosti u čvrstim matriksima. Merenja su obavljena u Laboratoriji za zaštitu od zračenja i zaštitu životne sredine Instituta za nuklearne nauke “Vinča” na niskofonskom gasnom proporcionalnom brojaču Thermo Eberline FHT 770T. Izmerene vrednosti ukupne alfa aktivnosti variraju od 158 Bq/kg do 324 Bq/kg i ukupne beta aktivnosti od 600 Bq/kg do 1324 Bq/kg za uzorke zemljišta. Za uzorke biljnih kultura vrednosti ukupne alfa aktivnosti su u intervalu od 5 Bq/kg do 167 Bq/kg suve materije, dok su vrednosti ukupne beta aktivnosti u intervalu od 180 Bq/kg do 584 Bq/kg suve materije. Rezultati istraživanja su značajni, jer daju osnovne radiološke informacije od vitalnog značaja za ispitivano područje. Ovo je prvi pokušaj generisanja osnovnih podataka o radijacionom opterećenju zemljišta i biljnih kultura poljoprivrednog ekosistema alfa i beta emiterima, koji su određeni skrining metodom za monitoring životnog okruženja., The conducted research is focused on the analysis of the trend of changes in gross alpha and gross beta activity in agricultural soil and crops of perennial experimental fields. The analysis was performed using an accredited method for determining gross alpha and gross beta activity in solid matrix. The measurements were performed in the Radiation and Environmental Protection Department in Vinča Institute of nuclear Sciences on a low-level gas proportional counter Thermo Eberline FHT 770T. The measured values of gross alpha activity varied from 158 Bq/kg to 324 Bq/kg, and from 600 Bq/kg to 1324 Bq/kg for the gross beta activity in soil samples. For plant samples, values ranged from 5 Bq/kg to 167 Bq/kg of dry matter, and from 180 Bq/kg to 584 Bq/kg of dry matter for gross alpha and gross beta activity, respectively. The results of the research are significant, because they provide basic radiological information of vital importance for the investigated area. This is the first attempt to generate data base on the radiation load of soil and crops of the agricultural ecosystem with alpha and beta emitters, which were determined by the screening method for environmental monitoring.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Analiza trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom ekosistemu, Analysis of Trend of the Gross Alpha and Gross Beta Activity in the Agricultural Ecosystem",
pages = "86-92",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12170"
}

Sarap, N., Janković, M., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Stanić, V.,& Jelić, I.. (2023). Analiza trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom ekosistemu. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 86-92.
https://hdl.handle.net/21.15107/rcub_vinar_12170

Sarap N, Janković M, Krneta Nikolić J, Rajačić M, Vukanac I, Stanić V, Jelić I. Analiza trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom ekosistemu. in 32. simpozijum DZZSCG : zbornik radova. 2023;:86-92.
https://hdl.handle.net/21.15107/rcub_vinar_12170 .

Sarap, Nataša, Janković, Marija, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Stanić, Vojislav, Jelić, Ivana, "Analiza trenda promene ukupne alfa i ukupne beta aktivnosti u poljoprivrednom ekosistemu" in 32. simpozijum DZZSCG : zbornik radova (2023):86-92,
https://hdl.handle.net/21.15107/rcub_vinar_12170 .

TY  - CONF
AU  - Krneta Nikolić, Jelena
AU  - Lučić, Marija
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Sarap, Nataša
AU  - Janković, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12172
AB  - U radu su prikazani rezultati ispitivanja sadržaja prirodnih radionuklida i 137Cs u 15 uzoraka lekovitog bilja sa teritorije Republike Srbije. Uzorci su nabavljeni u Institutu za istraživanje lekovitog bilja “Dr Josif Pančić” u Beogradu. Izabrani su tako da sadrže različite delove (koren, stablo ili cvet) istih biljnih vrsta da bi se uočila eventualna različita distribucija radionuklida u različitim delovima biljke. Prirodni radionuklidi 238U, 235U i 210Pb su bili ispod MDC u svim uzorcima, 226Ra je detektovan u 3, 137Cs u 5 uzoraka a 232Th u jednom uzorku. Na osnovu dobijenih rezultata, izračunata je doza ingestijom koju bi primila osoba koja pije čaj spravljen od ispitivanog lekovitog bilja, pod pretpostavkom da popije 0,2 L čaja dnevno. Ustanovljeno je da se doza ingestijom kreće u rasponu od 13,8 μSv do 32,3 μSv za 137Cs i 79,7 μSv za 226Ra, dakle daleko manje od doze od 0,1 mSv/god propisane Pravilnikom Sl. glasnik 36/18.
AB  - This manuscript presents the results of measurement of naturaly occurring radionuclides and 137Cs in 15 samples of medicinal herbes originating at the theritory of Republic of Serbia. The samples were procured from the Institute for research of medicinal herbes “Dr Josif Pančić” in Belgrade. They were chosen so that they contain various parts (roots, stem or flower) of the same plant in order to assess different distribution of the radionuclides in various plant parts. The aactivity concentration of naturaly occurring radionuclides 238U, 235U i 210Pb was below the minimal detectable concentration (MDC), 226Ra was detected in 3, 137Cs in 5 and 232Th in one sample. Based on the obtained values, ingestion dose was calculated taking into account that a person drinks 0.2L of tea per day. It is found that the ingestion dose is in the range of 13,8 μSv to 32,3 μSv for 137Cs and 79,7 μSv for 226Ra. This is well below the limit of 0.1 mSv/year recommended by the Rulebook Official Gasette 36/18.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Sadržaj radionuklida i doza ingestijom za čajeve spravljene od lekovitog bilja sa teritorije Republike Srbije
T1  - Radionuclide Content and Ingestion Dose for Tea Made From Medicinal Herbes From the Theritory of Republic of Serbia
SP  - 116
EP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12172
ER  - 

@conference{
author = "Krneta Nikolić, Jelena and Lučić, Marija and Rajačić, Milica and Vukanac, Ivana and Sarap, Nataša and Janković, Marija",
year = "2023",
abstract = "U radu su prikazani rezultati ispitivanja sadržaja prirodnih radionuklida i 137Cs u 15 uzoraka lekovitog bilja sa teritorije Republike Srbije. Uzorci su nabavljeni u Institutu za istraživanje lekovitog bilja “Dr Josif Pančić” u Beogradu. Izabrani su tako da sadrže različite delove (koren, stablo ili cvet) istih biljnih vrsta da bi se uočila eventualna različita distribucija radionuklida u različitim delovima biljke. Prirodni radionuklidi 238U, 235U i 210Pb su bili ispod MDC u svim uzorcima, 226Ra je detektovan u 3, 137Cs u 5 uzoraka a 232Th u jednom uzorku. Na osnovu dobijenih rezultata, izračunata je doza ingestijom koju bi primila osoba koja pije čaj spravljen od ispitivanog lekovitog bilja, pod pretpostavkom da popije 0,2 L čaja dnevno. Ustanovljeno je da se doza ingestijom kreće u rasponu od 13,8 μSv do 32,3 μSv za 137Cs i 79,7 μSv za 226Ra, dakle daleko manje od doze od 0,1 mSv/god propisane Pravilnikom Sl. glasnik 36/18., This manuscript presents the results of measurement of naturaly occurring radionuclides and 137Cs in 15 samples of medicinal herbes originating at the theritory of Republic of Serbia. The samples were procured from the Institute for research of medicinal herbes “Dr Josif Pančić” in Belgrade. They were chosen so that they contain various parts (roots, stem or flower) of the same plant in order to assess different distribution of the radionuclides in various plant parts. The aactivity concentration of naturaly occurring radionuclides 238U, 235U i 210Pb was below the minimal detectable concentration (MDC), 226Ra was detected in 3, 137Cs in 5 and 232Th in one sample. Based on the obtained values, ingestion dose was calculated taking into account that a person drinks 0.2L of tea per day. It is found that the ingestion dose is in the range of 13,8 μSv to 32,3 μSv for 137Cs and 79,7 μSv for 226Ra. This is well below the limit of 0.1 mSv/year recommended by the Rulebook Official Gasette 36/18.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Sadržaj radionuklida i doza ingestijom za čajeve spravljene od lekovitog bilja sa teritorije Republike Srbije, Radionuclide Content and Ingestion Dose for Tea Made From Medicinal Herbes From the Theritory of Republic of Serbia",
pages = "116-121",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12172"
}

Krneta Nikolić, J., Lučić, M., Rajačić, M., Vukanac, I., Sarap, N.,& Janković, M.. (2023). Sadržaj radionuklida i doza ingestijom za čajeve spravljene od lekovitog bilja sa teritorije Republike Srbije. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 116-121.
https://hdl.handle.net/21.15107/rcub_vinar_12172

Krneta Nikolić J, Lučić M, Rajačić M, Vukanac I, Sarap N, Janković M. Sadržaj radionuklida i doza ingestijom za čajeve spravljene od lekovitog bilja sa teritorije Republike Srbije. in 32. simpozijum DZZSCG : zbornik radova. 2023;:116-121.
https://hdl.handle.net/21.15107/rcub_vinar_12172 .

Krneta Nikolić, Jelena, Lučić, Marija, Rajačić, Milica, Vukanac, Ivana, Sarap, Nataša, Janković, Marija, "Sadržaj radionuklida i doza ingestijom za čajeve spravljene od lekovitog bilja sa teritorije Republike Srbije" in 32. simpozijum DZZSCG : zbornik radova (2023):116-121,
https://hdl.handle.net/21.15107/rcub_vinar_12172 .

TY  - CONF
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Krneta Nikolić, Jelena
AU  - Sarap, Nataša
AU  - Janković, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12175
AB  - Pitanje kojim se ovaj rad bavi je: “Kako predstaviti “dan uzorkovanja” kod vremenski kompozitnih uzoraka?”. Izbor referentnog datuma koji će predstaviti “dan uzorkovanja” je stvar dogovora, ali rezultati aktivnosti ispitanog radionuklida dati na različite referentne datume suštinski nisu međusobno poredivi. Cilj je bio da se ispita na koji dan korigovana izmerena aktivnost (Ar) najpribližnije određuje ukupnu dnevnu aktivnost svih uzorka na dan njihovog uzorkovanja (Au). Ispostavlja se da dan kada je razlika ove dve aktivnosi (Δ) minimalna zavisi od više faktora: ukupne vrednosti dnevnih aktivnosti (Au), vremenske raspodele dnevnih vrednosti (homogenost), dužine perioda sakupljanja (D) i vremena poluraspada posmatranog radionuklida (T1/2). Shodno tome, u radu je praćeno kako promena navedenih parametara utiče na promenu optimalnog referentnog datuma za koji je vrednost Δ minimalna (dan r). Rezultati pokazuju izvestan nivo pravilnosti kod homogenih uzoraka, međutim nehomogenost dnevnih aktivnosti, što je slučaj u realnosti, ima veliki uticaj na promenu optimalnog referentnog datuma, ali za sada bez utvrđenih pravilnosti.
AB  - The question that this paper deals with is: "How to present the "sampling day" in temporal composite samples?". The choice of the reference data that will represent the "sampling day" is a matter of agreement, but the results of the activity of the tested radionuclide given on different reference dates are essentially not mutually comparable. The aim of the paper was to examine on which day the corrected measured activity (Ar) most closely determines the total daily activity of all samples on the day of their sampling (Au). It turns out that the day when the difference between these two activities (Δ) is minimal depends on several factors: the total value of daily activities (Au), the temporal distribution of daily values (homogeneity), the length of the collection period (D) and the half-life of the observed radionuclide (T1/2 ). Accordingly, the influence of the variation of mentioned parameters on the change of the optimal reference date for which the value of Δ is minimal (day r) is presented in this paper. The results show some level of regularity in homogeneous samples, however, the inhomogeneity of daily activities, which is the case in reality, has a great influence on the change of the optimal reference date, but for now, without established consistency.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Izbor referentnog datuma za prezentovanje aktivnosti radionuklida u vremenski kompozitnim uzorcima
T1  - Selection of Reference Date for Presentation of Radionuclide Activity in Time-Composite Samples
SP  - 137
EP  - 142
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12175
ER  - 

@conference{
author = "Rajačić, Milica and Vukanac, Ivana and Krneta Nikolić, Jelena and Sarap, Nataša and Janković, Marija",
year = "2023",
abstract = "Pitanje kojim se ovaj rad bavi je: “Kako predstaviti “dan uzorkovanja” kod vremenski kompozitnih uzoraka?”. Izbor referentnog datuma koji će predstaviti “dan uzorkovanja” je stvar dogovora, ali rezultati aktivnosti ispitanog radionuklida dati na različite referentne datume suštinski nisu međusobno poredivi. Cilj je bio da se ispita na koji dan korigovana izmerena aktivnost (Ar) najpribližnije određuje ukupnu dnevnu aktivnost svih uzorka na dan njihovog uzorkovanja (Au). Ispostavlja se da dan kada je razlika ove dve aktivnosi (Δ) minimalna zavisi od više faktora: ukupne vrednosti dnevnih aktivnosti (Au), vremenske raspodele dnevnih vrednosti (homogenost), dužine perioda sakupljanja (D) i vremena poluraspada posmatranog radionuklida (T1/2). Shodno tome, u radu je praćeno kako promena navedenih parametara utiče na promenu optimalnog referentnog datuma za koji je vrednost Δ minimalna (dan r). Rezultati pokazuju izvestan nivo pravilnosti kod homogenih uzoraka, međutim nehomogenost dnevnih aktivnosti, što je slučaj u realnosti, ima veliki uticaj na promenu optimalnog referentnog datuma, ali za sada bez utvrđenih pravilnosti., The question that this paper deals with is: "How to present the "sampling day" in temporal composite samples?". The choice of the reference data that will represent the "sampling day" is a matter of agreement, but the results of the activity of the tested radionuclide given on different reference dates are essentially not mutually comparable. The aim of the paper was to examine on which day the corrected measured activity (Ar) most closely determines the total daily activity of all samples on the day of their sampling (Au). It turns out that the day when the difference between these two activities (Δ) is minimal depends on several factors: the total value of daily activities (Au), the temporal distribution of daily values (homogeneity), the length of the collection period (D) and the half-life of the observed radionuclide (T1/2 ). Accordingly, the influence of the variation of mentioned parameters on the change of the optimal reference date for which the value of Δ is minimal (day r) is presented in this paper. The results show some level of regularity in homogeneous samples, however, the inhomogeneity of daily activities, which is the case in reality, has a great influence on the change of the optimal reference date, but for now, without established consistency.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Izbor referentnog datuma za prezentovanje aktivnosti radionuklida u vremenski kompozitnim uzorcima, Selection of Reference Date for Presentation of Radionuclide Activity in Time-Composite Samples",
pages = "137-142",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12175"
}

Rajačić, M., Vukanac, I., Krneta Nikolić, J., Sarap, N.,& Janković, M.. (2023). Izbor referentnog datuma za prezentovanje aktivnosti radionuklida u vremenski kompozitnim uzorcima. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 137-142.
https://hdl.handle.net/21.15107/rcub_vinar_12175

Rajačić M, Vukanac I, Krneta Nikolić J, Sarap N, Janković M. Izbor referentnog datuma za prezentovanje aktivnosti radionuklida u vremenski kompozitnim uzorcima. in 32. simpozijum DZZSCG : zbornik radova. 2023;:137-142.
https://hdl.handle.net/21.15107/rcub_vinar_12175 .

Rajačić, Milica, Vukanac, Ivana, Krneta Nikolić, Jelena, Sarap, Nataša, Janković, Marija, "Izbor referentnog datuma za prezentovanje aktivnosti radionuklida u vremenski kompozitnim uzorcima" in 32. simpozijum DZZSCG : zbornik radova (2023):137-142,
https://hdl.handle.net/21.15107/rcub_vinar_12175 .

TY  - CONF
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana
AU  - Rajačić, Milica
AU  - Krneta Nikolić, Jelena
AU  - Sarap, Nataša
AU  - Janković, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12182
AB  - Rutinska merenja uzoraka iz životne sredine gama spektrometrijom zahtevaju pripremu radioaktivnih standarda različitih matriksa. Radioaktivni standardi se koriste u svim fazama procesa merenja, uključujući validaciju metoda, kalibraciju i kontrolu kvaliteta. U Laboratoriji za Zaštitu od zračenja i zaštitu životne sredine, Instituta za nuklearne nauke „Vinča” radioaktivni standardi se pripremaju korišćenjem sertifikovanog radioaktivnog rastvora različitih radionuklida. U ovom radu je opisan postupak pripreme radioaktivnih standarda koji obuhvata izbor matriksa, pripremu i spajkovanje pripremljenih matriksa sa sertifikovanim radioaktivnim rastvorom, proveru homogenosti, pakovanje standarda u odgovarajuću geometriju i njihova merenja u kontakt geometriji na gama spektrometru. Za sve materijale matriksa pripremljeni su i uzorci „blenka“ i mereni u istoj geometriji kao i kalibracioni standardi. Nakon analize snimljenih spektara, fitovanjem datih tačaka efikasnosti dobijene su kalibracione krive. U ovom radu dat je i opis budžeta merne nesigurnosti za aktivnosti radionuklida prisutnih u pripremljenim standardima.
AB  - The routine measurements of environmental samples using gamma-ray spectrometry indicate the needs for preparing radioactive standards for various matrices. The radioactive standards are used in all phases of the measurement process, including method validation, calibration and quality control. In the Radiation and Environmental Protection Departmen in the "Vinča" Institute of Nuclear Sciences, radioactive standards are prepared using a certified radioactive solution of mixed radionuclides. The procedure for radioactive standards preparation, which includes matrix selection and preparation, spiking with a certified radioactive solution, homogeneity check, matrix packing in the appropriate geometry and measurement of the prepared standards using a gamma spectrometer, is described in this paper. For all matrix materials, "blank" samples were prepared in the same manner as the standard materials and measured in the same geometry as the calibration samples. After the analysis of recorded spectra and evaluation of the obtained data for efficiency at given energies, calibration curves were obtained by fitting. The uncertainty budget of the activity for all radionuclides present in the prepared standards is also defined in this paper.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Priprema radioaktivnih standarda za kalibraciju gama spektrometara
T1  - Preparation of Radioactive Standards for Calibration of Gamma Spectrometer
SP  - 272
EP  - 279
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12182
ER  - 

@conference{
author = "Vukanac, Ivana and Đurašević, Mirjana and Rajačić, Milica and Krneta Nikolić, Jelena and Sarap, Nataša and Janković, Marija",
year = "2023",
abstract = "Rutinska merenja uzoraka iz životne sredine gama spektrometrijom zahtevaju pripremu radioaktivnih standarda različitih matriksa. Radioaktivni standardi se koriste u svim fazama procesa merenja, uključujući validaciju metoda, kalibraciju i kontrolu kvaliteta. U Laboratoriji za Zaštitu od zračenja i zaštitu životne sredine, Instituta za nuklearne nauke „Vinča” radioaktivni standardi se pripremaju korišćenjem sertifikovanog radioaktivnog rastvora različitih radionuklida. U ovom radu je opisan postupak pripreme radioaktivnih standarda koji obuhvata izbor matriksa, pripremu i spajkovanje pripremljenih matriksa sa sertifikovanim radioaktivnim rastvorom, proveru homogenosti, pakovanje standarda u odgovarajuću geometriju i njihova merenja u kontakt geometriji na gama spektrometru. Za sve materijale matriksa pripremljeni su i uzorci „blenka“ i mereni u istoj geometriji kao i kalibracioni standardi. Nakon analize snimljenih spektara, fitovanjem datih tačaka efikasnosti dobijene su kalibracione krive. U ovom radu dat je i opis budžeta merne nesigurnosti za aktivnosti radionuklida prisutnih u pripremljenim standardima., The routine measurements of environmental samples using gamma-ray spectrometry indicate the needs for preparing radioactive standards for various matrices. The radioactive standards are used in all phases of the measurement process, including method validation, calibration and quality control. In the Radiation and Environmental Protection Departmen in the "Vinča" Institute of Nuclear Sciences, radioactive standards are prepared using a certified radioactive solution of mixed radionuclides. The procedure for radioactive standards preparation, which includes matrix selection and preparation, spiking with a certified radioactive solution, homogeneity check, matrix packing in the appropriate geometry and measurement of the prepared standards using a gamma spectrometer, is described in this paper. For all matrix materials, "blank" samples were prepared in the same manner as the standard materials and measured in the same geometry as the calibration samples. After the analysis of recorded spectra and evaluation of the obtained data for efficiency at given energies, calibration curves were obtained by fitting. The uncertainty budget of the activity for all radionuclides present in the prepared standards is also defined in this paper.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Priprema radioaktivnih standarda za kalibraciju gama spektrometara, Preparation of Radioactive Standards for Calibration of Gamma Spectrometer",
pages = "272-279",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12182"
}

Vukanac, I., Đurašević, M., Rajačić, M., Krneta Nikolić, J., Sarap, N.,& Janković, M.. (2023). Priprema radioaktivnih standarda za kalibraciju gama spektrometara. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 272-279.
https://hdl.handle.net/21.15107/rcub_vinar_12182

Vukanac I, Đurašević M, Rajačić M, Krneta Nikolić J, Sarap N, Janković M. Priprema radioaktivnih standarda za kalibraciju gama spektrometara. in 32. simpozijum DZZSCG : zbornik radova. 2023;:272-279.
https://hdl.handle.net/21.15107/rcub_vinar_12182 .

Vukanac, Ivana, Đurašević, Mirjana, Rajačić, Milica, Krneta Nikolić, Jelena, Sarap, Nataša, Janković, Marija, "Priprema radioaktivnih standarda za kalibraciju gama spektrometara" in 32. simpozijum DZZSCG : zbornik radova (2023):272-279,
https://hdl.handle.net/21.15107/rcub_vinar_12182 .

TY  - CONF
AU  - Sarap, Nataša
AU  - Dejković, Stefana
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Stanić, Vojislav
AU  - Rajačić, Milica
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12308
AB  - In the Radiation and Environmental Protection Department, Vinča Institute of Nuclear Sciences, the validated radiochemical analytical method for 90Sr determination in environmental samples is used. The Laboratory for Radiation Measurements within mentioned Department is accredited according to ISO/IEC 17025. The activity of 90Sr is determined indirectly, by beta counting of its daughter product 90Y, and after established radioactive equilibrium during 18 days from the moment of 90Y radiochemical separation. Beta spectrometry by gas flow proportional counter Thermo Eberline FHT 770T is used for detection of 90Sr activity in investigated samples. In order to assure the reliability of the measurement results in accordance with Standard ISO/IEC 17025:2017, quality assurance and quality control (QA/QC) corresponding procedures need to be applied. For this purpose, activities ought to be planned in a systematic manner as described in the quality control documentation. The efficiency calibration of the detection system needs to be performed in a proper manner. The calibration of the detector for beta counting is performed using the Sr-90 certified radioactive standard point source (9031-OL-335/11, produced by Czech Metrology Institute) which is traceable to Bureau International des Poids et Mesures (BIPM). As lowlevel measurements require strict QA/QC requests, the accuracy and reproducibility of measurement systems must be verified periodically. A regular internal quality control of the gas flow proportional counter is performed once a week. Quality control activities include the background measurement and checking of efficiency using adequate radioactive standard source. The measurement values are recorded and verified if they are within the acceptance limits. The obtained results together with acceptance limits during the period of 3 months are graphically presented in control charts. The acceptance limits are set to be ±2σ and ±3σ in relation to the calculated mean value and standard deviation. The results of QC verification within ±2σ are considered to be satisfactory, those within ±3σ are warning, while those that exceeding ±3σ indicate that there is a problem with the measurement system. Consequently, the analysis of causes and design, as well as the application of corrective measures is needed.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Quality control of gas flow proportional counter for beta spectrometric determination of 90Sr
SP  - 25
EP  - 25
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12308
ER  - 

@conference{
author = "Sarap, Nataša and Dejković, Stefana and Janković, Marija and Krneta Nikolić, Jelena and Stanić, Vojislav and Rajačić, Milica",
year = "2023",
abstract = "In the Radiation and Environmental Protection Department, Vinča Institute of Nuclear Sciences, the validated radiochemical analytical method for 90Sr determination in environmental samples is used. The Laboratory for Radiation Measurements within mentioned Department is accredited according to ISO/IEC 17025. The activity of 90Sr is determined indirectly, by beta counting of its daughter product 90Y, and after established radioactive equilibrium during 18 days from the moment of 90Y radiochemical separation. Beta spectrometry by gas flow proportional counter Thermo Eberline FHT 770T is used for detection of 90Sr activity in investigated samples. In order to assure the reliability of the measurement results in accordance with Standard ISO/IEC 17025:2017, quality assurance and quality control (QA/QC) corresponding procedures need to be applied. For this purpose, activities ought to be planned in a systematic manner as described in the quality control documentation. The efficiency calibration of the detection system needs to be performed in a proper manner. The calibration of the detector for beta counting is performed using the Sr-90 certified radioactive standard point source (9031-OL-335/11, produced by Czech Metrology Institute) which is traceable to Bureau International des Poids et Mesures (BIPM). As lowlevel measurements require strict QA/QC requests, the accuracy and reproducibility of measurement systems must be verified periodically. A regular internal quality control of the gas flow proportional counter is performed once a week. Quality control activities include the background measurement and checking of efficiency using adequate radioactive standard source. The measurement values are recorded and verified if they are within the acceptance limits. The obtained results together with acceptance limits during the period of 3 months are graphically presented in control charts. The acceptance limits are set to be ±2σ and ±3σ in relation to the calculated mean value and standard deviation. The results of QC verification within ±2σ are considered to be satisfactory, those within ±3σ are warning, while those that exceeding ±3σ indicate that there is a problem with the measurement system. Consequently, the analysis of causes and design, as well as the application of corrective measures is needed.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Quality control of gas flow proportional counter for beta spectrometric determination of 90Sr",
pages = "25-25",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12308"
}

Sarap, N., Dejković, S., Janković, M., Krneta Nikolić, J., Stanić, V.,& Rajačić, M.. (2023). Quality control of gas flow proportional counter for beta spectrometric determination of 90Sr. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 25-25.
https://hdl.handle.net/21.15107/rcub_vinar_12308

Sarap N, Dejković S, Janković M, Krneta Nikolić J, Stanić V, Rajačić M. Quality control of gas flow proportional counter for beta spectrometric determination of 90Sr. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:25-25.
https://hdl.handle.net/21.15107/rcub_vinar_12308 .

Sarap, Nataša, Dejković, Stefana, Janković, Marija, Krneta Nikolić, Jelena, Stanić, Vojislav, Rajačić, Milica, "Quality control of gas flow proportional counter for beta spectrometric determination of 90Sr" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):25-25,
https://hdl.handle.net/21.15107/rcub_vinar_12308 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Waisi, Hadi
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Veljković, Filip
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12358
AB  - This paper presents the results for gross alpha and gross beta activity in leaves samples: Fig (Ficus carica), Vine (Vitis vinifera L.), and Apricot (Prunus armeniaca). Samples were collected in Iraq (Sulaymaniyah, Kurdistan region), and in the Serbia (Belgrade), in the summer 2018. The analysis was done in dried and milled samples as well as in the annealed samples, using gas flow proportional counter. Determination of gross alpha and gross beta activity presents rapid method, essential for the analysis of radioactivity in environmental samples. The gross alpha activity is defines as the total activity of alpha emitters, and originates from the decay chains of 238U and 232Th, which quantity depends on the geological and geographical formation of natural radionuclides. The main contributor to the gross beta activity is natural long-lived isotope 40K, as well as 210Pb, 228Ra. The gross beta measurements also include a contribution from anthropogenic radionuclides 137Cs and 90Sr. Radionuclides that emitting low-energy beta radiation (3 H and gaseous or volatile radionuclide such as iodine) cannot be detected by gross beta activity measurements.
PB  - Belgrade : University „Union-Nikola Tesla”
C3  - 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings
T1  - Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)
SP  - 309
EP  - 314
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12358
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Waisi, Hadi and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Veljković, Filip and Janković, Bojan",
year = "2023",
abstract = "This paper presents the results for gross alpha and gross beta activity in leaves samples: Fig (Ficus carica), Vine (Vitis vinifera L.), and Apricot (Prunus armeniaca). Samples were collected in Iraq (Sulaymaniyah, Kurdistan region), and in the Serbia (Belgrade), in the summer 2018. The analysis was done in dried and milled samples as well as in the annealed samples, using gas flow proportional counter. Determination of gross alpha and gross beta activity presents rapid method, essential for the analysis of radioactivity in environmental samples. The gross alpha activity is defines as the total activity of alpha emitters, and originates from the decay chains of 238U and 232Th, which quantity depends on the geological and geographical formation of natural radionuclides. The main contributor to the gross beta activity is natural long-lived isotope 40K, as well as 210Pb, 228Ra. The gross beta measurements also include a contribution from anthropogenic radionuclides 137Cs and 90Sr. Radionuclides that emitting low-energy beta radiation (3 H and gaseous or volatile radionuclide such as iodine) cannot be detected by gross beta activity measurements.",
publisher = "Belgrade : University „Union-Nikola Tesla”",
journal = "3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings",
title = "Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)",
pages = "309-314",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12358"
}

Janković, M., Sarap, N., Waisi, H., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Veljković, F.,& Janković, B.. (2023). Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine). in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings
Belgrade : University „Union-Nikola Tesla”., 309-314.
https://hdl.handle.net/21.15107/rcub_vinar_12358

Janković M, Sarap N, Waisi H, Krneta Nikolić J, Rajačić M, Vukanac I, Veljković F, Janković B. Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine). in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings. 2023;:309-314.
https://hdl.handle.net/21.15107/rcub_vinar_12358 .

Janković, Marija, Sarap, Nataša, Waisi, Hadi, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Veljković, Filip, Janković, Bojan, "Gross alpha and gross beta activity in leaves (Fig, Apricot and Wine)" in 3rd International Conference on Sustainable Environment and Technologies “Creating Sustainable CommUNiTy” : Proceedings (2023):309-314,
https://hdl.handle.net/21.15107/rcub_vinar_12358 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Šljivić-Ivanović, Marija
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12359
AB  - Determination of specific activity concentration of radioisotopes in environmental samples can be used to assess the long-term kinetics of the decline of radioisotopes. Based on the obtained activity concentrations of tritium in the Danube, the effective ecological half-life is estimated. Assuming that the Danube in Belgrade is not affected by nuclear power plants, even though it is positioned downstream of the Paks Nuclear Power Plant in Hungary, a slow decline of tritium was observed. The effective ecological half-life of tritium was also determined after correction by subtracting its components originating from cosmic radiation and the atmospheric transfer from nuclear facilities worldwide.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
T1  - Effective ecological half-life of tritium in Danube - Kinetic approach
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12359
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Šljivić-Ivanović, Marija and Janković, Bojan",
year = "2023",
abstract = "Determination of specific activity concentration of radioisotopes in environmental samples can be used to assess the long-term kinetics of the decline of radioisotopes. Based on the obtained activity concentrations of tritium in the Danube, the effective ecological half-life is estimated. Assuming that the Danube in Belgrade is not affected by nuclear power plants, even though it is positioned downstream of the Paks Nuclear Power Plant in Hungary, a slow decline of tritium was observed. The effective ecological half-life of tritium was also determined after correction by subtracting its components originating from cosmic radiation and the atmospheric transfer from nuclear facilities worldwide.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings",
title = "Effective ecological half-life of tritium in Danube - Kinetic approach",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12359"
}

Janković, M., Sarap, N., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Šljivić-Ivanović, M.,& Janković, B.. (2023). Effective ecological half-life of tritium in Danube - Kinetic approach. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_vinar_12359

Janković M, Sarap N, Krneta Nikolić J, Rajačić M, Vukanac I, Šljivić-Ivanović M, Janković B. Effective ecological half-life of tritium in Danube - Kinetic approach. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12359 .

Janković, Marija, Sarap, Nataša, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Šljivić-Ivanović, Marija, Janković, Bojan, "Effective ecological half-life of tritium in Danube - Kinetic approach" in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12359 .

TY  - CONF
AU  - Krneta Nikolić, Jelena
AU  - Janković, Marija
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Sarap, Nataša
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12577
AB  - As a part of regular activities of the accredited laboratory, the Laboratory for Radiation Measurements of the Radiation and Environmental Protection Department, Institute Vinča, every year takes part in the proficiency tests organized by IAEA. This year, within the framework of IAEA – TERC – 2022 – 01/02 Proficiency Test, one of the requests was to measure the simulated surface contamination using the instrument that are at the disposal in the participant laboratories. The results should be reported in the units of counts/s/cm2 in order to be comparable. In this paper, the measurement method and subsequent specific calculations for the simulated surface contamination are explained and the results of the proficiency test stated and discussed.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
T1  - Simulated Surface Contamination Measurement for the IAEA-TERC-2022-01/02 Proficiency Test
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12577
ER  - 

@conference{
author = "Krneta Nikolić, Jelena and Janković, Marija and Rajačić, Milica and Vukanac, Ivana and Sarap, Nataša",
year = "2023",
abstract = "As a part of regular activities of the accredited laboratory, the Laboratory for Radiation Measurements of the Radiation and Environmental Protection Department, Institute Vinča, every year takes part in the proficiency tests organized by IAEA. This year, within the framework of IAEA – TERC – 2022 – 01/02 Proficiency Test, one of the requests was to measure the simulated surface contamination using the instrument that are at the disposal in the participant laboratories. The results should be reported in the units of counts/s/cm2 in order to be comparable. In this paper, the measurement method and subsequent specific calculations for the simulated surface contamination are explained and the results of the proficiency test stated and discussed.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings",
title = "Simulated Surface Contamination Measurement for the IAEA-TERC-2022-01/02 Proficiency Test",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12577"
}

Krneta Nikolić, J., Janković, M., Rajačić, M., Vukanac, I.,& Sarap, N.. (2023). Simulated Surface Contamination Measurement for the IAEA-TERC-2022-01/02 Proficiency Test. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_vinar_12577

Krneta Nikolić J, Janković M, Rajačić M, Vukanac I, Sarap N. Simulated Surface Contamination Measurement for the IAEA-TERC-2022-01/02 Proficiency Test. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12577 .

Krneta Nikolić, Jelena, Janković, Marija, Rajačić, Milica, Vukanac, Ivana, Sarap, Nataša, "Simulated Surface Contamination Measurement for the IAEA-TERC-2022-01/02 Proficiency Test" in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12577 .

TY  - CONF
AU  - Janković, Bojan
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Sarap, Nataša
AU  - Manić, Nebojša
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12589
AB  - In this work, the thermal decomposition process of coal bottom ash (collected after lignitecombustion in coal-fired power plant “Kostolac B” (TEKO-B), Serbia) was investigated, usingsimultaneous TG (thermogravimetry) – DTG (derivative thermogravimetry) techniquesin an inert (Ar) atmosphere, at various heating rates (10.3, 20.9 and 32.1 K/min). In additionto thermal characterization of the sample, the chemical composition and naturally occurredradionuclides were also determined. Using the model-free (isoconversional) (by Friedman(FR), Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Vyazovkin (VY)methods) analysis, the complex kinetic nature of the process was successfully resolved. Theconducted numerical optimization of the process (using non-linear least square optimization)had confirmed accuracy and reliability of estimated kinetic parameters. Model-based(model-fitting) kinetic analysis showed the existence of a complex reaction scheme, overtwo consecutive reactions steps and one single-stage reaction step, via mechanism order An,F2, Fn, R3, Cnm (through n-dimensional nucleation/growth, chemical reactions, and n-thorder and m-power with autocatalysis mechanisms). Through physicochemical interpretationof mechanism scheme, an assessment of recovery of valuable metals and metal oxides wasperformed, by analysing the concentration of reaction species in a function of temperature ofindividual steps. Likewise, the influence of certain precursor involved in decomposition processas catalyst (in order to increase the yield of targeted product) was also inspected. Finally,the simulation of actual process using the results obtained from applied methods/models wasperformed, through application of modulated dynamic (MD) prediction.
PB  - Budapest : Akadémiai Kiadó
C3  - JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts
T1  - Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis
SP  - 263
EP  - 263
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12589
ER  - 

@conference{
author = "Janković, Bojan and Janković, Marija and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Sarap, Nataša and Manić, Nebojša",
year = "2023",
abstract = "In this work, the thermal decomposition process of coal bottom ash (collected after lignitecombustion in coal-fired power plant “Kostolac B” (TEKO-B), Serbia) was investigated, usingsimultaneous TG (thermogravimetry) – DTG (derivative thermogravimetry) techniquesin an inert (Ar) atmosphere, at various heating rates (10.3, 20.9 and 32.1 K/min). In additionto thermal characterization of the sample, the chemical composition and naturally occurredradionuclides were also determined. Using the model-free (isoconversional) (by Friedman(FR), Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW) and Vyazovkin (VY)methods) analysis, the complex kinetic nature of the process was successfully resolved. Theconducted numerical optimization of the process (using non-linear least square optimization)had confirmed accuracy and reliability of estimated kinetic parameters. Model-based(model-fitting) kinetic analysis showed the existence of a complex reaction scheme, overtwo consecutive reactions steps and one single-stage reaction step, via mechanism order An,F2, Fn, R3, Cnm (through n-dimensional nucleation/growth, chemical reactions, and n-thorder and m-power with autocatalysis mechanisms). Through physicochemical interpretationof mechanism scheme, an assessment of recovery of valuable metals and metal oxides wasperformed, by analysing the concentration of reaction species in a function of temperature ofindividual steps. Likewise, the influence of certain precursor involved in decomposition processas catalyst (in order to increase the yield of targeted product) was also inspected. Finally,the simulation of actual process using the results obtained from applied methods/models wasperformed, through application of modulated dynamic (MD) prediction.",
publisher = "Budapest : Akadémiai Kiadó",
journal = "JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts",
title = "Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis",
pages = "263-263",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12589"
}

Janković, B., Janković, M., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Sarap, N.,& Manić, N.. (2023). Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis. in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts
Budapest : Akadémiai Kiadó., 263-263.
https://hdl.handle.net/21.15107/rcub_vinar_12589

Janković B, Janković M, Krneta Nikolić J, Rajačić M, Vukanac I, Sarap N, Manić N. Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis. in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts. 2023;:263-263.
https://hdl.handle.net/21.15107/rcub_vinar_12589 .

Janković, Bojan, Janković, Marija, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Sarap, Nataša, Manić, Nebojša, "Recovering of metals and metal oxides through thermal decomposition process of coal bottom ash: a comprehensive kinetic analysis" in JTACC 2023 : 3rd Journal of Thermal Analysis and Calorimetry Conference and 9th V4 (Joint Czech-Hungarian-Polish-Slovakian) Thermoanalytical Conference : Book of asbtracts (2023):263-263,
https://hdl.handle.net/21.15107/rcub_vinar_12589 .

TY  - CONF
AU  - Vukanac, Ivana
AU  - Rajačić, Milica
AU  - Krneta Nikolić, Jelena
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Stanković Petrović, Jelena
AU  - Kojić, Andrea
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12590
AB  - Measurement of radon (222Rn) concentration using charcoal filters according to the EPA 520/5-87-005 method is performed in Radiation and Environment Protection Department of Vinča Institute for Nuclear Sciences on NaI scintillation detectors. Concentration of radon adsorbed on active charcoal is determined indirectly, by gamma spectrometry of its daughter products via their gamma peaks at 295 keV, 352 keV (214Pb) and 609 keV (214Bi). In order to assure the reliability of the measurement results, and in accordance with Standard ISO 17025/17 quality control and quality assurance (QA/QC) procedures needs to be applied. Related activities ought to be planned, described in the quality control documentation, performed in a systematic manner, recorded and reviewed. First, the energy and efficiency calibration of the detection system needs to be performed in a proper manner. The NaI scintillation spectrometer is internally calibrated using the certified radioactive 226Ra standard in charcoal matrix and in the geometry identical to the measurement geometry, produced by Czech Metrology Institute and traceable to Bureau International des Poids et Mesures (BIPM). As defined in laboratory’s procedures a regular quality control of the NaI scintillation detector is performed once a week. Quality control activities include the background measurement and measurement of adequate reference material. Gross background count rate in the energy region of interest is used to verify that the detector and shield have not been contaminated and that there is no significant variation of the background. Reference material used is the soil sample with known content of 226Ra. Gross count rate in the reference material spectrum is used to check the energy and efficiency calibration. These values are recorded and verified if they are within the acceptance limits. Obtained results, together with acceptance limits, for a certain period (one year usually) is graphically presented in the control charts. The acceptance limits for background count rate and reference material gross count rate in the energy region of interest are defined according to the statistical analysis of the data from previous QC period. The mean and standard deviation is calculated and the acceptance limits are set to be ±2σ and ±3σ. QC measurement results falling between ±2σ are considered to be satisfactory, while those falling inside ±3σ are warning. QC measurement results exceeding ±3σ indicate that there is a problem with the measurement system and that analysis of causes and design and application of corrective measures are needed. Analysing the control charts for the previous QC period (year 2022) showed that the controlled parameters were within the defined limits of acceptance. Occasional discrepancies, mainly due to background variation, were minor and were addressed immediately. Background variation was treated simply by repeated measurements after additional ventilation of the measurement laboratory
PB  - Niš : Sievert Association
C3  - RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
T1  - Quality control of NaI scintillation detector for gamma spectrometric determination of radon concentration
SP  - 32
EP  - 32
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12590
ER  - 

@conference{
author = "Vukanac, Ivana and Rajačić, Milica and Krneta Nikolić, Jelena and Janković, Marija and Sarap, Nataša and Stanković Petrović, Jelena and Kojić, Andrea",
year = "2023",
abstract = "Measurement of radon (222Rn) concentration using charcoal filters according to the EPA 520/5-87-005 method is performed in Radiation and Environment Protection Department of Vinča Institute for Nuclear Sciences on NaI scintillation detectors. Concentration of radon adsorbed on active charcoal is determined indirectly, by gamma spectrometry of its daughter products via their gamma peaks at 295 keV, 352 keV (214Pb) and 609 keV (214Bi). In order to assure the reliability of the measurement results, and in accordance with Standard ISO 17025/17 quality control and quality assurance (QA/QC) procedures needs to be applied. Related activities ought to be planned, described in the quality control documentation, performed in a systematic manner, recorded and reviewed. First, the energy and efficiency calibration of the detection system needs to be performed in a proper manner. The NaI scintillation spectrometer is internally calibrated using the certified radioactive 226Ra standard in charcoal matrix and in the geometry identical to the measurement geometry, produced by Czech Metrology Institute and traceable to Bureau International des Poids et Mesures (BIPM). As defined in laboratory’s procedures a regular quality control of the NaI scintillation detector is performed once a week. Quality control activities include the background measurement and measurement of adequate reference material. Gross background count rate in the energy region of interest is used to verify that the detector and shield have not been contaminated and that there is no significant variation of the background. Reference material used is the soil sample with known content of 226Ra. Gross count rate in the reference material spectrum is used to check the energy and efficiency calibration. These values are recorded and verified if they are within the acceptance limits. Obtained results, together with acceptance limits, for a certain period (one year usually) is graphically presented in the control charts. The acceptance limits for background count rate and reference material gross count rate in the energy region of interest are defined according to the statistical analysis of the data from previous QC period. The mean and standard deviation is calculated and the acceptance limits are set to be ±2σ and ±3σ. QC measurement results falling between ±2σ are considered to be satisfactory, while those falling inside ±3σ are warning. QC measurement results exceeding ±3σ indicate that there is a problem with the measurement system and that analysis of causes and design and application of corrective measures are needed. Analysing the control charts for the previous QC period (year 2022) showed that the controlled parameters were within the defined limits of acceptance. Occasional discrepancies, mainly due to background variation, were minor and were addressed immediately. Background variation was treated simply by repeated measurements after additional ventilation of the measurement laboratory",
publisher = "Niš : Sievert Association",
journal = "RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts",
title = "Quality control of NaI scintillation detector for gamma spectrometric determination of radon concentration",
pages = "32-32",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12590"
}

Vukanac, I., Rajačić, M., Krneta Nikolić, J., Janković, M., Sarap, N., Stanković Petrović, J.,& Kojić, A.. (2023). Quality control of NaI scintillation detector for gamma spectrometric determination of radon concentration. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts
Niš : Sievert Association., 32-32.
https://hdl.handle.net/21.15107/rcub_vinar_12590

Vukanac I, Rajačić M, Krneta Nikolić J, Janković M, Sarap N, Stanković Petrović J, Kojić A. Quality control of NaI scintillation detector for gamma spectrometric determination of radon concentration. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts. 2023;:32-32.
https://hdl.handle.net/21.15107/rcub_vinar_12590 .

Vukanac, Ivana, Rajačić, Milica, Krneta Nikolić, Jelena, Janković, Marija, Sarap, Nataša, Stanković Petrović, Jelena, Kojić, Andrea, "Quality control of NaI scintillation detector for gamma spectrometric determination of radon concentration" in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts (2023):32-32,
https://hdl.handle.net/21.15107/rcub_vinar_12590 .

TY  - CONF
AU  - Sarap, Nataša
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Janković, Marija
AU  - Češljar, Goran
AU  - Đorđević, Ilija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12603
AB  - U radu je prikazana procena stanja u životnoj sredini Mokre Gore, posmatrano sa radioekološkog aspekta. Rezultati gamaspektrometrijskih merenja sprovedenih na germanijumskom detektoru visoke čistoće su pokazala prisustvo 226Ra, 232Th i 40K u zemljištu Mokre Gore u koncentracijama aktivnosti: od 10 Bq/kg do 20 Bq/kg za 226Ra, 13 Bq/kg do 34 Bq/kg za 232Th i 96 Bq/kg do 250 Bq/kg za 40K. Na osnovu rezultata gamaspektrometrijskog merenja aktivnosti navedenih primordijalnih radionuklida, izvršena je procena radijacionog rizika usled terestričkog izlaganja stanovništva na području Mokre Gore. Proračunom su procenjeni sledeći parametri radijacionog rizika: ukupna jačina doze gama zračenja (srednja vrednost 28,6 nGy/h), godišnja efektivna doza (srednja vrednost 0,035 mSv) i indeks radijacionog rizika usled spoljašnjeg izlaganja (srednja vrednost 0,169). Procenjene vrednosti navedenih parametara ukazuju na to da ne postoji uvećan radijacioni rizik za stanovništvo ispitanog područja usled terestričkog izlaganja.
PB  - Novi Sad : Prirodno-matematički fakultet
C3  - 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
T1  - Procena radioekološke situacije u životnoj sredini Mokre Gore
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12603
ER  - 

@conference{
author = "Sarap, Nataša and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Janković, Marija and Češljar, Goran and Đorđević, Ilija",
year = "2023",
abstract = "U radu je prikazana procena stanja u životnoj sredini Mokre Gore, posmatrano sa radioekološkog aspekta. Rezultati gamaspektrometrijskih merenja sprovedenih na germanijumskom detektoru visoke čistoće su pokazala prisustvo 226Ra, 232Th i 40K u zemljištu Mokre Gore u koncentracijama aktivnosti: od 10 Bq/kg do 20 Bq/kg za 226Ra, 13 Bq/kg do 34 Bq/kg za 232Th i 96 Bq/kg do 250 Bq/kg za 40K. Na osnovu rezultata gamaspektrometrijskog merenja aktivnosti navedenih primordijalnih radionuklida, izvršena je procena radijacionog rizika usled terestričkog izlaganja stanovništva na području Mokre Gore. Proračunom su procenjeni sledeći parametri radijacionog rizika: ukupna jačina doze gama zračenja (srednja vrednost 28,6 nGy/h), godišnja efektivna doza (srednja vrednost 0,035 mSv) i indeks radijacionog rizika usled spoljašnjeg izlaganja (srednja vrednost 0,169). Procenjene vrednosti navedenih parametara ukazuju na to da ne postoji uvećan radijacioni rizik za stanovništvo ispitanog područja usled terestričkog izlaganja.",
publisher = "Novi Sad : Prirodno-matematički fakultet",
journal = "10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova",
title = "Procena radioekološke situacije u životnoj sredini Mokre Gore",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12603"
}

Sarap, N., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Janković, M., Češljar, G.,& Đorđević, I.. (2023). Procena radioekološke situacije u životnoj sredini Mokre Gore. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
Novi Sad : Prirodno-matematički fakultet..
https://hdl.handle.net/21.15107/rcub_vinar_12603

Sarap N, Krneta Nikolić J, Rajačić M, Vukanac I, Janković M, Češljar G, Đorđević I. Procena radioekološke situacije u životnoj sredini Mokre Gore. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12603 .

Sarap, Nataša, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Janković, Marija, Češljar, Goran, Đorđević, Ilija, "Procena radioekološke situacije u životnoj sredini Mokre Gore" in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12603 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Stanić, Vojislav
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Šljivić-Ivanović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12604
AB  - Gasni proporcionalni brojač koristi se za određivanje ukupne alfa i ukupne beta aktivnosti u različitim matriksima kao i za određivanje aktivnosti antropogenog radionuklida 90Sr koji je čist beta emiter. Ovaj rad predstavlja pregled kontrole kvaliteta gasnog proporcionalnog brojača Thermo-Eberline FHT 770T i određivanja efikasnosti, koja se sprovodi sa sertifikovanim standardima 241Am i 90Sr. Brojač ima mogućnost simultanog merenja na 6 detektora i određivanja aktivnosti reda mBq. U radu su prikazani i rezultati sprovedene eksterne kontrole kvaliteta učešćem u interkomparativnom merenju 90Sr, ukupne alfa i ukupne beta aktivnosti u uzorcima vode, organizovanom od strane Međunarodne Agencije za Atomsku Energiju tokom 2022. godine.
PB  - Novi Sad : Prirodno-matematički fakultet
C3  - 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
T1  - Kontrola kvaliteta gasnog proporcionalnog brojača – radioaktivnost u vodama
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12604
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Stanić, Vojislav and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Šljivić-Ivanović, Marija",
year = "2023",
abstract = "Gasni proporcionalni brojač koristi se za određivanje ukupne alfa i ukupne beta aktivnosti u različitim matriksima kao i za određivanje aktivnosti antropogenog radionuklida 90Sr koji je čist beta emiter. Ovaj rad predstavlja pregled kontrole kvaliteta gasnog proporcionalnog brojača Thermo-Eberline FHT 770T i određivanja efikasnosti, koja se sprovodi sa sertifikovanim standardima 241Am i 90Sr. Brojač ima mogućnost simultanog merenja na 6 detektora i određivanja aktivnosti reda mBq. U radu su prikazani i rezultati sprovedene eksterne kontrole kvaliteta učešćem u interkomparativnom merenju 90Sr, ukupne alfa i ukupne beta aktivnosti u uzorcima vode, organizovanom od strane Međunarodne Agencije za Atomsku Energiju tokom 2022. godine.",
publisher = "Novi Sad : Prirodno-matematički fakultet",
journal = "10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova",
title = "Kontrola kvaliteta gasnog proporcionalnog brojača – radioaktivnost u vodama",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12604"
}

Janković, M., Sarap, N., Stanić, V., Krneta Nikolić, J., Rajačić, M., Vukanac, I.,& Šljivić-Ivanović, M.. (2023). Kontrola kvaliteta gasnog proporcionalnog brojača – radioaktivnost u vodama. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
Novi Sad : Prirodno-matematički fakultet..
https://hdl.handle.net/21.15107/rcub_vinar_12604

Janković M, Sarap N, Stanić V, Krneta Nikolić J, Rajačić M, Vukanac I, Šljivić-Ivanović M. Kontrola kvaliteta gasnog proporcionalnog brojača – radioaktivnost u vodama. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12604 .

Janković, Marija, Sarap, Nataša, Stanić, Vojislav, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Šljivić-Ivanović, Marija, "Kontrola kvaliteta gasnog proporcionalnog brojača – radioaktivnost u vodama" in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12604 .

TY  - CONF
AU  - Janković, Marija
AU  - Veljković, Filip
AU  - Sarap, Nataša
AU  - Veličković, Suzana
AU  - Stajčić, Ivana
AU  - Šljivić-Ivanović, Marija
AU  - Janković, Bojan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12354
AB  - This paper presents application of a nuclear technique for the analysis of radioactivity in supplements using gas proportional counter as well as application of analytical technique Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) in order to characterize the radioactivity contents and stability of the chemical structures  for commercial supplements. Gas proportional counter enables to determination of gross alpha and gross beta activity in the environmental samples, where they are present as ultra trace elements. Also, MALDI-MS method is used, since it represents an excellent analytical technique for detecting large number of biologically important molecules, such as commercial supplements.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
T1  - Analysis of commercial supplements using a nuclear and MALDI-MS techniques
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12354
ER  - 

@conference{
author = "Janković, Marija and Veljković, Filip and Sarap, Nataša and Veličković, Suzana and Stajčić, Ivana and Šljivić-Ivanović, Marija and Janković, Bojan",
year = "2023",
abstract = "This paper presents application of a nuclear technique for the analysis of radioactivity in supplements using gas proportional counter as well as application of analytical technique Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) in order to characterize the radioactivity contents and stability of the chemical structures  for commercial supplements. Gas proportional counter enables to determination of gross alpha and gross beta activity in the environmental samples, where they are present as ultra trace elements. Also, MALDI-MS method is used, since it represents an excellent analytical technique for detecting large number of biologically important molecules, such as commercial supplements.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings",
title = "Analysis of commercial supplements using a nuclear and MALDI-MS techniques",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12354"
}

Janković, M., Veljković, F., Sarap, N., Veličković, S., Stajčić, I., Šljivić-Ivanović, M.,& Janković, B.. (2023). Analysis of commercial supplements using a nuclear and MALDI-MS techniques. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_vinar_12354

Janković M, Veljković F, Sarap N, Veličković S, Stajčić I, Šljivić-Ivanović M, Janković B. Analysis of commercial supplements using a nuclear and MALDI-MS techniques. in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12354 .

Janković, Marija, Veljković, Filip, Sarap, Nataša, Veličković, Suzana, Stajčić, Ivana, Šljivić-Ivanović, Marija, Janković, Bojan, "Analysis of commercial supplements using a nuclear and MALDI-MS techniques" in IcETRAN 2023 : 10th Jubilee International Conference IcETRAN : Proceedings (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12354 .

TY  - CONF
AU  - Sarap, Nataša
AU  - Janković, Marija
AU  - Stanić, Vojislav
AU  - Jelić, Ivana
AU  - Šljivić-Ivanović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12572
AB  - Gabrovnica, uranium mine near Kalna in the Eastern Serbia was a natural ore with uranium content. Exploitation of the uranium ore in this region was started in the 1960s and it was terminated in 1996. The aim of this work was to analyze radiological characterization of environmental samples around uranium mine Gabrovnica. Soil samples were taken in the autumn of 2022 and spring 2023, while surface soil samples (Gabrovnička River) were taken continuously for six month (July-December 2022 and January-June 2023). All samples were analyzed in order to determine gross alpha and gross beta activities and measured on ultra low level gas proportional counter Thermo-Eberline FHT 770T.
PB  - University of Belgrade : Technical Faculty in Bor
C3  - IOC 2023 : 54th International October Conference on Mining and Metallurgy : Proceedings
T1  - Analysis of gross alpha and gross beta activity in samples around former uranium mine Gabrovnica
SP  - 92
EP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12572
ER  - 

@conference{
author = "Sarap, Nataša and Janković, Marija and Stanić, Vojislav and Jelić, Ivana and Šljivić-Ivanović, Marija",
year = "2023",
abstract = "Gabrovnica, uranium mine near Kalna in the Eastern Serbia was a natural ore with uranium content. Exploitation of the uranium ore in this region was started in the 1960s and it was terminated in 1996. The aim of this work was to analyze radiological characterization of environmental samples around uranium mine Gabrovnica. Soil samples were taken in the autumn of 2022 and spring 2023, while surface soil samples (Gabrovnička River) were taken continuously for six month (July-December 2022 and January-June 2023). All samples were analyzed in order to determine gross alpha and gross beta activities and measured on ultra low level gas proportional counter Thermo-Eberline FHT 770T.",
publisher = "University of Belgrade : Technical Faculty in Bor",
journal = "IOC 2023 : 54th International October Conference on Mining and Metallurgy : Proceedings",
title = "Analysis of gross alpha and gross beta activity in samples around former uranium mine Gabrovnica",
pages = "92-95",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12572"
}

Sarap, N., Janković, M., Stanić, V., Jelić, I.,& Šljivić-Ivanović, M.. (2023). Analysis of gross alpha and gross beta activity in samples around former uranium mine Gabrovnica. in IOC 2023 : 54th International October Conference on Mining and Metallurgy : Proceedings
University of Belgrade : Technical Faculty in Bor., 92-95.
https://hdl.handle.net/21.15107/rcub_vinar_12572

Sarap N, Janković M, Stanić V, Jelić I, Šljivić-Ivanović M. Analysis of gross alpha and gross beta activity in samples around former uranium mine Gabrovnica. in IOC 2023 : 54th International October Conference on Mining and Metallurgy : Proceedings. 2023;:92-95.
https://hdl.handle.net/21.15107/rcub_vinar_12572 .

Sarap, Nataša, Janković, Marija, Stanić, Vojislav, Jelić, Ivana, Šljivić-Ivanović, Marija, "Analysis of gross alpha and gross beta activity in samples around former uranium mine Gabrovnica" in IOC 2023 : 54th International October Conference on Mining and Metallurgy : Proceedings (2023):92-95,
https://hdl.handle.net/21.15107/rcub_vinar_12572 .

TY  - CONF
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Jelić, Ivana
AU  - Šljivić-Ivanović, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11451
AB  - Tritium levels in natural waters today have a similar value to the concentration before thermonuclear bomb testing conducted between 1954 and 1963. Because of the low concentration of this radioisotope, the analysis requires enrichment techniques to produce low detection limit, accurate results and to reduce uncertainties. This analysis includes preliminary distillation, electrolytic enrichment of the samples, the second distillation, and measurement on ultra low-level liquid scintillation spectrometer. The enrichment system consists of 16 electrolytic cells, each with a capacity of 250 ml, placed in the freezer and connected to a direct current source. One cell contains spike water with known tritium concentration and is used for enrichment factor determination. The initial volume for all samples is 250 ml. Na2O2 is used as an electrolyte to make the solution alkaline. Each cell has a gas outlet to ensure the escape of gases H2 and O2. In order to obtain a high enrichment factor, the system works on 5 A, to reduce the initial volume of the samples by 10-15 times. After electrolysis, second distillation must be performed to eliminate electrolyte. 8 ml of water sample after the second distillation is mixed with a scintillation cocktail in polyethylene vials and measured on a liquid scintillation spectrometer Quantulus 1220. At the end of the electrolytic enrichment process, the final volumes of the samples can be different, which causes different enrichment between the cells. To eliminate this influence, the final volume of all enrichment samples can be normalized at one value. In order to determine the corrected count rates obtained for each sample, the separation factor must be first calculated, taking into account initial volume, normalized final volume, count rate for spike water (after enrichment), count rate for spike water (before enrichment), and background count rate. In the example of one electrolysis, with 15 samples of drinking water, precipitation, and surface water, and one sample of spike water, with 670 Ah and an enrichment factor of 8.10, the final volume is normalized on a value of 18 ml. The calculated separation factor was 4.88. The corrected count rates for samples vary from 0 to 9.6 %, which causes a change in the final activity concentration of tritium from 0 to 22.2 %.
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - An influence of the final volume of samples during the electrolysis of water, on counts for tritium activity determination
SP  - 205
EP  - 205
DO  - 10.21175/rad.abstr.book.2023.34.14
ER  - 

@conference{
author = "Janković, Marija and Sarap, Nataša and Krneta Nikolić, Jelena and Rajačić, Milica and Vukanac, Ivana and Jelić, Ivana and Šljivić-Ivanović, Marija",
year = "2023",
abstract = "Tritium levels in natural waters today have a similar value to the concentration before thermonuclear bomb testing conducted between 1954 and 1963. Because of the low concentration of this radioisotope, the analysis requires enrichment techniques to produce low detection limit, accurate results and to reduce uncertainties. This analysis includes preliminary distillation, electrolytic enrichment of the samples, the second distillation, and measurement on ultra low-level liquid scintillation spectrometer. The enrichment system consists of 16 electrolytic cells, each with a capacity of 250 ml, placed in the freezer and connected to a direct current source. One cell contains spike water with known tritium concentration and is used for enrichment factor determination. The initial volume for all samples is 250 ml. Na2O2 is used as an electrolyte to make the solution alkaline. Each cell has a gas outlet to ensure the escape of gases H2 and O2. In order to obtain a high enrichment factor, the system works on 5 A, to reduce the initial volume of the samples by 10-15 times. After electrolysis, second distillation must be performed to eliminate electrolyte. 8 ml of water sample after the second distillation is mixed with a scintillation cocktail in polyethylene vials and measured on a liquid scintillation spectrometer Quantulus 1220. At the end of the electrolytic enrichment process, the final volumes of the samples can be different, which causes different enrichment between the cells. To eliminate this influence, the final volume of all enrichment samples can be normalized at one value. In order to determine the corrected count rates obtained for each sample, the separation factor must be first calculated, taking into account initial volume, normalized final volume, count rate for spike water (after enrichment), count rate for spike water (before enrichment), and background count rate. In the example of one electrolysis, with 15 samples of drinking water, precipitation, and surface water, and one sample of spike water, with 670 Ah and an enrichment factor of 8.10, the final volume is normalized on a value of 18 ml. The calculated separation factor was 4.88. The corrected count rates for samples vary from 0 to 9.6 %, which causes a change in the final activity concentration of tritium from 0 to 22.2 %.",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "An influence of the final volume of samples during the electrolysis of water, on counts for tritium activity determination",
pages = "205-205",
doi = "10.21175/rad.abstr.book.2023.34.14"
}

Janković, M., Sarap, N., Krneta Nikolić, J., Rajačić, M., Vukanac, I., Jelić, I.,& Šljivić-Ivanović, M.. (2023). An influence of the final volume of samples during the electrolysis of water, on counts for tritium activity determination. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 205-205.
https://doi.org/10.21175/rad.abstr.book.2023.34.14

Janković M, Sarap N, Krneta Nikolić J, Rajačić M, Vukanac I, Jelić I, Šljivić-Ivanović M. An influence of the final volume of samples during the electrolysis of water, on counts for tritium activity determination. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:205-205.
doi:10.21175/rad.abstr.book.2023.34.14 .

Janković, Marija, Sarap, Nataša, Krneta Nikolić, Jelena, Rajačić, Milica, Vukanac, Ivana, Jelić, Ivana, Šljivić-Ivanović, Marija, "An influence of the final volume of samples during the electrolysis of water, on counts for tritium activity determination" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):205-205,
https://doi.org/10.21175/rad.abstr.book.2023.34.14 . .

TY  - CONF
AU  - Miljojčić, Tatjana
AU  - Jelić, Ivana
AU  - Savić, Aleksandar
AU  - Šljivić-Ivanović, Marija
AU  - Janković, Marija
AU  - Sarap, Nataša
AU  - Stanić, Vojislav
AU  - Ćurčić, Milica
AU  - Dimović, Slavko
AU  - Šerović, Radmila
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12201
AB  - Brzi napredak elektronske industrije doveo je do generisanja velike količine električnog otpada pre isteka njegovog odgovarajućeg životnog veka. Nelegalno odlaganje starih monitora i TV ekrana, odnosno njihovih katodnih cevi (Cathode-Ray Tubes, CRT), predstavlja veliki problem po životnu sredinu iz razloga što je CRT otpad klasifikovan kao opasan zbog visokog sadržaja olova. Stoga, konačnom zbrinjavanju navedenog otpada mora da prethodi tretman u topionici kako bi se olovo odvojilo od stakla. Dosadašnju praksu u Republici Srbiji (RS) dodatno komplikuje nedostatak takvih postrojenja, što zahteva izvoz CRT-a u Zapadnu Evropu uz dodatni trošak. Dosadašnja istraživanja ukazuju na mogućnost primene CRT stakla u izradi opeka, keramičkih pločica, specijalnih prostorija za odlaganje nuklearnog otpada ili kao agregata u građevinarstvu. Takođe, delimična supstitucija cementa fino mlevenim CRT staklom smanjuje količinu njegove potrošnje povećavajući nivo održivosti ovakvog procesa. Ovaj rad se bavi istraživanjima upotrebe CRT stakla u cementnim materijalima, kako bi se procenila mogućnost njegove upotrebe u malter-matriksima za imobilizaciju tečnog radioaktivnog otpada.
AB  - The rapid progress of the electronic industry has led to the generation of a large amount of electrical waste before the end of its useful life. Illegal disposal of old monitors and TV screens, i.e. their Cathode-Ray Tubes (CRT), represents a major concern for the environment being CRT waste is classified as hazardous due to its high lead content. Therefore, the final disposal of this waste must be preceded by treatment in a smelter in order to separate the lead from the glass. The current practice in the Republic of Serbia (RS) is additionally complicated by the lack of such facilities, which requires the export of CRT to Western Europe at an additional cost. Previous research indicates the possibility of CRT glass utilization in the production of bricks, ceramic tiles, and special rooms for the disposal of nuclear waste or as an aggregate in construction. Also, the partial substitution of cement with fine ground CRT glass reduces the amount of its consumption, increasing the level of sustainability of this process. This paper deals with the investigation of CRT glass usage in cement materials, in order to evaluate the possibility of its use in mortar-matrix for the immobilization of liquid radioactive waste.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 32. simpozijum DZZSCG : zbornik radova
T1  - Pregled potencijalnih primena otpadnog stakla ekrana u malter-matriksu za imobilizaciju tečnog radioaktivnog otpada
T1  - Overview of Potential Applications of Screen Waste Glass in Mortar-Matrix for Liquid Radioactive Waste Immobilization
SP  - 445
EP  - 451
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12201
ER  - 

@conference{
author = "Miljojčić, Tatjana and Jelić, Ivana and Savić, Aleksandar and Šljivić-Ivanović, Marija and Janković, Marija and Sarap, Nataša and Stanić, Vojislav and Ćurčić, Milica and Dimović, Slavko and Šerović, Radmila",
year = "2023",
abstract = "Brzi napredak elektronske industrije doveo je do generisanja velike količine električnog otpada pre isteka njegovog odgovarajućeg životnog veka. Nelegalno odlaganje starih monitora i TV ekrana, odnosno njihovih katodnih cevi (Cathode-Ray Tubes, CRT), predstavlja veliki problem po životnu sredinu iz razloga što je CRT otpad klasifikovan kao opasan zbog visokog sadržaja olova. Stoga, konačnom zbrinjavanju navedenog otpada mora da prethodi tretman u topionici kako bi se olovo odvojilo od stakla. Dosadašnju praksu u Republici Srbiji (RS) dodatno komplikuje nedostatak takvih postrojenja, što zahteva izvoz CRT-a u Zapadnu Evropu uz dodatni trošak. Dosadašnja istraživanja ukazuju na mogućnost primene CRT stakla u izradi opeka, keramičkih pločica, specijalnih prostorija za odlaganje nuklearnog otpada ili kao agregata u građevinarstvu. Takođe, delimična supstitucija cementa fino mlevenim CRT staklom smanjuje količinu njegove potrošnje povećavajući nivo održivosti ovakvog procesa. Ovaj rad se bavi istraživanjima upotrebe CRT stakla u cementnim materijalima, kako bi se procenila mogućnost njegove upotrebe u malter-matriksima za imobilizaciju tečnog radioaktivnog otpada., The rapid progress of the electronic industry has led to the generation of a large amount of electrical waste before the end of its useful life. Illegal disposal of old monitors and TV screens, i.e. their Cathode-Ray Tubes (CRT), represents a major concern for the environment being CRT waste is classified as hazardous due to its high lead content. Therefore, the final disposal of this waste must be preceded by treatment in a smelter in order to separate the lead from the glass. The current practice in the Republic of Serbia (RS) is additionally complicated by the lack of such facilities, which requires the export of CRT to Western Europe at an additional cost. Previous research indicates the possibility of CRT glass utilization in the production of bricks, ceramic tiles, and special rooms for the disposal of nuclear waste or as an aggregate in construction. Also, the partial substitution of cement with fine ground CRT glass reduces the amount of its consumption, increasing the level of sustainability of this process. This paper deals with the investigation of CRT glass usage in cement materials, in order to evaluate the possibility of its use in mortar-matrix for the immobilization of liquid radioactive waste.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "32. simpozijum DZZSCG : zbornik radova",
title = "Pregled potencijalnih primena otpadnog stakla ekrana u malter-matriksu za imobilizaciju tečnog radioaktivnog otpada, Overview of Potential Applications of Screen Waste Glass in Mortar-Matrix for Liquid Radioactive Waste Immobilization",
pages = "445-451",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12201"
}

Miljojčić, T., Jelić, I., Savić, A., Šljivić-Ivanović, M., Janković, M., Sarap, N., Stanić, V., Ćurčić, M., Dimović, S.,& Šerović, R.. (2023). Pregled potencijalnih primena otpadnog stakla ekrana u malter-matriksu za imobilizaciju tečnog radioaktivnog otpada. in 32. simpozijum DZZSCG : zbornik radova
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 445-451.
https://hdl.handle.net/21.15107/rcub_vinar_12201

Miljojčić T, Jelić I, Savić A, Šljivić-Ivanović M, Janković M, Sarap N, Stanić V, Ćurčić M, Dimović S, Šerović R. Pregled potencijalnih primena otpadnog stakla ekrana u malter-matriksu za imobilizaciju tečnog radioaktivnog otpada. in 32. simpozijum DZZSCG : zbornik radova. 2023;:445-451.
https://hdl.handle.net/21.15107/rcub_vinar_12201 .

Miljojčić, Tatjana, Jelić, Ivana, Savić, Aleksandar, Šljivić-Ivanović, Marija, Janković, Marija, Sarap, Nataša, Stanić, Vojislav, Ćurčić, Milica, Dimović, Slavko, Šerović, Radmila, "Pregled potencijalnih primena otpadnog stakla ekrana u malter-matriksu za imobilizaciju tečnog radioaktivnog otpada" in 32. simpozijum DZZSCG : zbornik radova (2023):445-451,
https://hdl.handle.net/21.15107/rcub_vinar_12201 .

TY  - JOUR
AU  - Janković, Marija M.
AU  - Jelić, Ivana
AU  - Rajačić, Milica
AU  - Krneta-Nikolić, Jelena D.
AU  - Vukanac, Ivana
AU  - Dimović, Slavko
AU  - Sarap, Nataša
AU  - Šljivić-Ivanović, Marija Z.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10933
AB  - This work presents the natural radioactivity distribution of 21 surface soil samples taken in the city of Novi Sad, Serbia. The analysis for radioactivity was performed using a gas low-level proportional counter for gross alpha and gross beta activity, while the specific activities of radionuclides were determined using HPGe detectors. The gross alpha activity of 20 samples was below the minimum detectable concentration (MDC), while in 1 sample it was 243 Bq kg−1; the gross beta activity ranged from the MDC (11 samples) to 566 Bq kg−1. The gamma spectrometry measurements showed naturally occurring radionuclides 226Ra, 232Th, 40K, and 238U in all investigated samples, with average values (Bq kg−1) of 33.9, 36.7, 513.8, and 34.7, respectively. Natural radionuclide 235U was detected in 18 samples with activity concentrations in the range of 1.3–4.1 Bq kg−1, while in the other 3 samples, the values were below the MDC. The artificial 137Cs radionuclide was detected in 90 percent of the samples, with a maximum value of 21 Bq kg−1, while the other artificial radionuclides were not detected. Based on the obtained concentrations of natural radionuclides, hazard indexes were estimated, and radiological health risk was assessed. The results present the absorbed gamma dose rate in the air, annual effective dose, radium equivalent activity, external hazard index, and lifetime cancer risk.
T2  - Toxics
T1  - Distribution of Natural Radionuclides and 137Cs in Urban Soil Samples from the City of Novi Sad, Serbia-Radiological Risk Assessment
VL  - 11
IS  - 4
SP  - 345
DO  - 10.3390/toxics11040345
ER  - 

@article{
author = "Janković, Marija M. and Jelić, Ivana and Rajačić, Milica and Krneta-Nikolić, Jelena D. and Vukanac, Ivana and Dimović, Slavko and Sarap, Nataša and Šljivić-Ivanović, Marija Z.",
year = "2023",
abstract = "This work presents the natural radioactivity distribution of 21 surface soil samples taken in the city of Novi Sad, Serbia. The analysis for radioactivity was performed using a gas low-level proportional counter for gross alpha and gross beta activity, while the specific activities of radionuclides were determined using HPGe detectors. The gross alpha activity of 20 samples was below the minimum detectable concentration (MDC), while in 1 sample it was 243 Bq kg−1; the gross beta activity ranged from the MDC (11 samples) to 566 Bq kg−1. The gamma spectrometry measurements showed naturally occurring radionuclides 226Ra, 232Th, 40K, and 238U in all investigated samples, with average values (Bq kg−1) of 33.9, 36.7, 513.8, and 34.7, respectively. Natural radionuclide 235U was detected in 18 samples with activity concentrations in the range of 1.3–4.1 Bq kg−1, while in the other 3 samples, the values were below the MDC. The artificial 137Cs radionuclide was detected in 90 percent of the samples, with a maximum value of 21 Bq kg−1, while the other artificial radionuclides were not detected. Based on the obtained concentrations of natural radionuclides, hazard indexes were estimated, and radiological health risk was assessed. The results present the absorbed gamma dose rate in the air, annual effective dose, radium equivalent activity, external hazard index, and lifetime cancer risk.",
journal = "Toxics",
title = "Distribution of Natural Radionuclides and 137Cs in Urban Soil Samples from the City of Novi Sad, Serbia-Radiological Risk Assessment",
volume = "11",
number = "4",
pages = "345",
doi = "10.3390/toxics11040345"
}

Janković, M. M., Jelić, I., Rajačić, M., Krneta-Nikolić, J. D., Vukanac, I., Dimović, S., Sarap, N.,& Šljivić-Ivanović, M. Z.. (2023). Distribution of Natural Radionuclides and 137Cs in Urban Soil Samples from the City of Novi Sad, Serbia-Radiological Risk Assessment. in Toxics, 11(4), 345.
https://doi.org/10.3390/toxics11040345

Janković MM, Jelić I, Rajačić M, Krneta-Nikolić JD, Vukanac I, Dimović S, Sarap N, Šljivić-Ivanović MZ. Distribution of Natural Radionuclides and 137Cs in Urban Soil Samples from the City of Novi Sad, Serbia-Radiological Risk Assessment. in Toxics. 2023;11(4):345.
doi:10.3390/toxics11040345 .

Janković, Marija M., Jelić, Ivana, Rajačić, Milica, Krneta-Nikolić, Jelena D., Vukanac, Ivana, Dimović, Slavko, Sarap, Nataša, Šljivić-Ivanović, Marija Z., "Distribution of Natural Radionuclides and 137Cs in Urban Soil Samples from the City of Novi Sad, Serbia-Radiological Risk Assessment" in Toxics, 11, no. 4 (2023):345,
https://doi.org/10.3390/toxics11040345 . .

TY  - CONF
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Vukanac, Ivana
AU  - Krneta Nikolić, Jelena
AU  - Janković, Marija
AU  - Sarap, Nataša
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12606
AB  - Metodom gamaspektrometrije u periodu 2020-2021. godina praćena je koncentracija aktivnosti
radionuklida u površinskoj vodi i rečnom sedimentu reke Dunav, na teritoriji beogradske opštine
Zemun. U ovom radu su prikazane vrednosti izmerenih koncentracija aktivnosti detektovanih
radionuklida. Dok se u uzorcima površinske vode praktično detektuje samo prisustvo 40K i 226Ra
u koncentracijama reda nekoliko desetina mBq/l, u uzorcima sedimenta detektovani su prirodni
radionuklidi u navedenim opsezima koncentracija : 226Ra - (14-46) Bq/kg, 232Th - (17-56) Bq/kg,
40K - (230-645) Bq/kg, 238U - (15-53) Bq/kg i 235U - (1,2-3,2) Bq/kg.
PB  - Novi Sad : Prirodno-matematički fakultet
C3  - 9. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
T1  - Prirodna radioaktivnost u sedimentu reke Dunav
SP  - S-01
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12606
ER  - 

@conference{
author = "Rajačić, Milica and Todorović, Dragana and Vukanac, Ivana and Krneta Nikolić, Jelena and Janković, Marija and Sarap, Nataša",
year = "2022",
abstract = "Metodom gamaspektrometrije u periodu 2020-2021. godina praćena je koncentracija aktivnosti
radionuklida u površinskoj vodi i rečnom sedimentu reke Dunav, na teritoriji beogradske opštine
Zemun. U ovom radu su prikazane vrednosti izmerenih koncentracija aktivnosti detektovanih
radionuklida. Dok se u uzorcima površinske vode praktično detektuje samo prisustvo 40K i 226Ra
u koncentracijama reda nekoliko desetina mBq/l, u uzorcima sedimenta detektovani su prirodni
radionuklidi u navedenim opsezima koncentracija : 226Ra - (14-46) Bq/kg, 232Th - (17-56) Bq/kg,
40K - (230-645) Bq/kg, 238U - (15-53) Bq/kg i 235U - (1,2-3,2) Bq/kg.",
publisher = "Novi Sad : Prirodno-matematički fakultet",
journal = "9. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova",
title = "Prirodna radioaktivnost u sedimentu reke Dunav",
pages = "S-01",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12606"
}

Rajačić, M., Todorović, D., Vukanac, I., Krneta Nikolić, J., Janković, M.,& Sarap, N.. (2022). Prirodna radioaktivnost u sedimentu reke Dunav. in 9. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
Novi Sad : Prirodno-matematički fakultet., S-01.
https://hdl.handle.net/21.15107/rcub_vinar_12606

Rajačić M, Todorović D, Vukanac I, Krneta Nikolić J, Janković M, Sarap N. Prirodna radioaktivnost u sedimentu reke Dunav. in 9. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova. 2022;:S-01.
https://hdl.handle.net/21.15107/rcub_vinar_12606 .

Rajačić, Milica, Todorović, Dragana, Vukanac, Ivana, Krneta Nikolić, Jelena, Janković, Marija, Sarap, Nataša, "Prirodna radioaktivnost u sedimentu reke Dunav" in 9. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova (2022):S-01,
https://hdl.handle.net/21.15107/rcub_vinar_12606 .

TY  - CONF
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Krneta Nikolić, Jelena
AU  - Vukanac, Ivana
AU  - Sarap, Nataša
AU  - Janković, Marija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12575
AB  - After the Chernobyl accident, the presence of artificial radionuclides in foodstuff, especially in berries (blueberries, cranberries etc.), was heightened. Legislative, presented in Rulebook on Radioactivity Control of Goods During the Import, Export and Transit (Official Gazette RS, 86/19 and 90/19), establishes the mandatory gamma spectrometry measurement of berries, while the limits of radionuclide content in these products is defined in the Rulebook on Limits of radionuclide content in drinking water, foodstuff, feedstuff, medicines, items of general use, building materials and other goods placed on the market (Official Gazette RS, 36/18). At the Radiation and Environment Protection Department of the Vinča Institute of Nuclear Sciences, measurements of the radionuclide activity in foodstuff are readily performed. In this paper, the results of the investigation of berries in the period of 2014 to 2021 are presented along with the amount of this produce that can be ingested by the various age groups without exceeding the annual effective dose limit of 0.1 mSv.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings
T1  - Radionuclide content in samples of berries
SP  - 313
EP  - 318
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12575
ER  - 

@conference{
author = "Rajačić, Milica and Todorović, Dragana and Krneta Nikolić, Jelena and Vukanac, Ivana and Sarap, Nataša and Janković, Marija",
year = "2022",
abstract = "After the Chernobyl accident, the presence of artificial radionuclides in foodstuff, especially in berries (blueberries, cranberries etc.), was heightened. Legislative, presented in Rulebook on Radioactivity Control of Goods During the Import, Export and Transit (Official Gazette RS, 86/19 and 90/19), establishes the mandatory gamma spectrometry measurement of berries, while the limits of radionuclide content in these products is defined in the Rulebook on Limits of radionuclide content in drinking water, foodstuff, feedstuff, medicines, items of general use, building materials and other goods placed on the market (Official Gazette RS, 36/18). At the Radiation and Environment Protection Department of the Vinča Institute of Nuclear Sciences, measurements of the radionuclide activity in foodstuff are readily performed. In this paper, the results of the investigation of berries in the period of 2014 to 2021 are presented along with the amount of this produce that can be ingested by the various age groups without exceeding the annual effective dose limit of 0.1 mSv.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings",
title = "Radionuclide content in samples of berries",
pages = "313-318",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12575"
}

Rajačić, M., Todorović, D., Krneta Nikolić, J., Vukanac, I., Sarap, N.,& Janković, M.. (2022). Radionuclide content in samples of berries. in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings
Bor : University of Belgrade, Technical Faculty in Bor., 313-318.
https://hdl.handle.net/21.15107/rcub_vinar_12575

Rajačić M, Todorović D, Krneta Nikolić J, Vukanac I, Sarap N, Janković M. Radionuclide content in samples of berries. in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings. 2022;:313-318.
https://hdl.handle.net/21.15107/rcub_vinar_12575 .

Rajačić, Milica, Todorović, Dragana, Krneta Nikolić, Jelena, Vukanac, Ivana, Sarap, Nataša, Janković, Marija, "Radionuclide content in samples of berries" in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings (2022):313-318,
https://hdl.handle.net/21.15107/rcub_vinar_12575 .

TY  - CONF
AU  - Krneta Nikolić, Jelena
AU  - Janković, Marija
AU  - Rajačić, Milica
AU  - Vukanac, Ivana
AU  - Todorović, Dragana
AU  - Sarap, Nataša
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12578
AB  - The operation of coal fired power plants greatly influences the surrounding environment, especially water and soil, due to large amounts of combustion waste products released. Besides the quality of soil and water from the aspect of chemical and structural composition (release of heavy metals, ash and slag deposition on soil) it is of at most importance to maintain a strict control from the radiological safety point of view. All coal types contain certain amount of naturally occurring radionuclides, which depends on the composition of the rock and soil adjacent to the place of the coal excavation. These radionuclides are concentrated in the process of coal combustion, thus leading to potentially high levels of radioactivity in the ash and slag. These by – products are released into the environment and can increase the radiation burden on the environment, change the composition of the soil and bodies of water in the vicinity, thus potentially influencing the health of the general population. In this paper, the radiological analysis of soil and water samples taken from the vicinity of different coal fired power plants in Serbia in the period of 2019-2021. will be presented. Measurements are performed in the Radiation and Environmental Protection Department of Institute of Nuclear Sciences Vinča within the framework of regular environment monitoring of the power plants.
PB  - Niš : University of Niš, Faculty of Mechanical Engineering
C3  - SimTerm2022 : 20th international conference on thermal science and engineering of Serbia : Proceedings
T1  - Quality Control of Soil and Water in the Vicinity of Coal Fired Power Plants - Radiological Aspect
SP  - 594
EP  - 600
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12578
ER  - 

@conference{
author = "Krneta Nikolić, Jelena and Janković, Marija and Rajačić, Milica and Vukanac, Ivana and Todorović, Dragana and Sarap, Nataša",
year = "2022",
abstract = "The operation of coal fired power plants greatly influences the surrounding environment, especially water and soil, due to large amounts of combustion waste products released. Besides the quality of soil and water from the aspect of chemical and structural composition (release of heavy metals, ash and slag deposition on soil) it is of at most importance to maintain a strict control from the radiological safety point of view. All coal types contain certain amount of naturally occurring radionuclides, which depends on the composition of the rock and soil adjacent to the place of the coal excavation. These radionuclides are concentrated in the process of coal combustion, thus leading to potentially high levels of radioactivity in the ash and slag. These by – products are released into the environment and can increase the radiation burden on the environment, change the composition of the soil and bodies of water in the vicinity, thus potentially influencing the health of the general population. In this paper, the radiological analysis of soil and water samples taken from the vicinity of different coal fired power plants in Serbia in the period of 2019-2021. will be presented. Measurements are performed in the Radiation and Environmental Protection Department of Institute of Nuclear Sciences Vinča within the framework of regular environment monitoring of the power plants.",
publisher = "Niš : University of Niš, Faculty of Mechanical Engineering",
journal = "SimTerm2022 : 20th international conference on thermal science and engineering of Serbia : Proceedings",
title = "Quality Control of Soil and Water in the Vicinity of Coal Fired Power Plants - Radiological Aspect",
pages = "594-600",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12578"
}

Krneta Nikolić, J., Janković, M., Rajačić, M., Vukanac, I., Todorović, D.,& Sarap, N.. (2022). Quality Control of Soil and Water in the Vicinity of Coal Fired Power Plants - Radiological Aspect. in SimTerm2022 : 20th international conference on thermal science and engineering of Serbia : Proceedings
Niš : University of Niš, Faculty of Mechanical Engineering., 594-600.
https://hdl.handle.net/21.15107/rcub_vinar_12578

Krneta Nikolić J, Janković M, Rajačić M, Vukanac I, Todorović D, Sarap N. Quality Control of Soil and Water in the Vicinity of Coal Fired Power Plants - Radiological Aspect. in SimTerm2022 : 20th international conference on thermal science and engineering of Serbia : Proceedings. 2022;:594-600.
https://hdl.handle.net/21.15107/rcub_vinar_12578 .

Krneta Nikolić, Jelena, Janković, Marija, Rajačić, Milica, Vukanac, Ivana, Todorović, Dragana, Sarap, Nataša, "Quality Control of Soil and Water in the Vicinity of Coal Fired Power Plants - Radiological Aspect" in SimTerm2022 : 20th international conference on thermal science and engineering of Serbia : Proceedings (2022):594-600,
https://hdl.handle.net/21.15107/rcub_vinar_12578 .

TY  - CONF
AU  - Sarap, Nataša
AU  - Janković, Marija
AU  - Krneta Nikolić, Jelena
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Vukanac, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12579
AB  - Radiostrontium is released to the environment during the testing and use of nuclear weapons mainly in the fifties and sixties of XX century, in addition to nuclear power plant accidents (to some extent in 1986 owing to the Chernobyl accident) and the nuclear fuel reprocessing industry. Strontium is a chemical analogue of calcium (both are earth-alkaline metals) and accordingly when entering a human or animal body, it behaves similar to calcium. A large portion of the strontium will accumulate in bone and teeth and then is included in the metabolism along with Ca, and like calcium, it transfers to milk. Since the strontium uptake by the human body from milk is an important pathway for radiostrontium incorporation, milk and dairy products are good indicators of strontium-90 (Sr-90) content in human diet. Based on the mentioned, the knowledge about Sr-90 content in milk and dairy products is of extreme importance to prevent and control contamination of the food chain. The present study was conducted in order to radiologically control for Sr-90 content in raw milk and some dairy products samples composed of representative locally purchased milk. The analyses are performed using radiochemical analytical oxalate precipitation method, whereby interfering radionuclides are removed by precipitation scavenging. Yttrium-90 (Y-90) is generated from the beta decay of Sr-90. After the ingrowth Y-90 is separated and equilibrium is established, the samples are measured by gas flow proportional counter. The results of investigation showed that Sr-90 activity concentration in many investigated samples was at a lower level than minimum detectable activity (MDA) of the method.
C3  - AGROSYM 2022 : XIII International Scientific Agriculture Symposium : Proceedings
T1  - Strontium-90 in milk and some dairy products in the Republic of Serbia
SP  - 536
EP  - 540
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12579
ER  - 

@conference{
author = "Sarap, Nataša and Janković, Marija and Krneta Nikolić, Jelena and Rajačić, Milica and Todorović, Dragana and Vukanac, Ivana",
year = "2022",
abstract = "Radiostrontium is released to the environment during the testing and use of nuclear weapons mainly in the fifties and sixties of XX century, in addition to nuclear power plant accidents (to some extent in 1986 owing to the Chernobyl accident) and the nuclear fuel reprocessing industry. Strontium is a chemical analogue of calcium (both are earth-alkaline metals) and accordingly when entering a human or animal body, it behaves similar to calcium. A large portion of the strontium will accumulate in bone and teeth and then is included in the metabolism along with Ca, and like calcium, it transfers to milk. Since the strontium uptake by the human body from milk is an important pathway for radiostrontium incorporation, milk and dairy products are good indicators of strontium-90 (Sr-90) content in human diet. Based on the mentioned, the knowledge about Sr-90 content in milk and dairy products is of extreme importance to prevent and control contamination of the food chain. The present study was conducted in order to radiologically control for Sr-90 content in raw milk and some dairy products samples composed of representative locally purchased milk. The analyses are performed using radiochemical analytical oxalate precipitation method, whereby interfering radionuclides are removed by precipitation scavenging. Yttrium-90 (Y-90) is generated from the beta decay of Sr-90. After the ingrowth Y-90 is separated and equilibrium is established, the samples are measured by gas flow proportional counter. The results of investigation showed that Sr-90 activity concentration in many investigated samples was at a lower level than minimum detectable activity (MDA) of the method.",
journal = "AGROSYM 2022 : XIII International Scientific Agriculture Symposium : Proceedings",
title = "Strontium-90 in milk and some dairy products in the Republic of Serbia",
pages = "536-540",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12579"
}

Sarap, N., Janković, M., Krneta Nikolić, J., Rajačić, M., Todorović, D.,& Vukanac, I.. (2022). Strontium-90 in milk and some dairy products in the Republic of Serbia. in AGROSYM 2022 : XIII International Scientific Agriculture Symposium : Proceedings, 536-540.
https://hdl.handle.net/21.15107/rcub_vinar_12579

Sarap N, Janković M, Krneta Nikolić J, Rajačić M, Todorović D, Vukanac I. Strontium-90 in milk and some dairy products in the Republic of Serbia. in AGROSYM 2022 : XIII International Scientific Agriculture Symposium : Proceedings. 2022;:536-540.
https://hdl.handle.net/21.15107/rcub_vinar_12579 .

Sarap, Nataša, Janković, Marija, Krneta Nikolić, Jelena, Rajačić, Milica, Todorović, Dragana, Vukanac, Ivana, "Strontium-90 in milk and some dairy products in the Republic of Serbia" in AGROSYM 2022 : XIII International Scientific Agriculture Symposium : Proceedings (2022):536-540,
https://hdl.handle.net/21.15107/rcub_vinar_12579 .

TY  - CONF
AU  - Rajačić, Milica
AU  - Sarap, Nataša
AU  - Janković, Marija
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12581
PB  - Brčko Distrikt : Evropski univerzitet
C3  - X međunarodni naučni skup "Sigurnost i kvalitet hrane" : Zbornik radova
T1  - Radiokativnost 137Cs u pečurkama
T1  - Radioactivity of 137Cs in mushrooms
VL  - 2
SP  - 286
EP  - 291
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12581
ER  - 

@conference{
author = "Rajačić, Milica and Sarap, Nataša and Janković, Marija",
year = "2022",
publisher = "Brčko Distrikt : Evropski univerzitet",
journal = "X međunarodni naučni skup "Sigurnost i kvalitet hrane" : Zbornik radova",
title = "Radiokativnost 137Cs u pečurkama, Radioactivity of 137Cs in mushrooms",
volume = "2",
pages = "286-291",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12581"
}

Rajačić, M., Sarap, N.,& Janković, M.. (2022). Radiokativnost 137Cs u pečurkama. in X međunarodni naučni skup "Sigurnost i kvalitet hrane" : Zbornik radova
Brčko Distrikt : Evropski univerzitet., 2, 286-291.
https://hdl.handle.net/21.15107/rcub_vinar_12581

Rajačić M, Sarap N, Janković M. Radiokativnost 137Cs u pečurkama. in X međunarodni naučni skup "Sigurnost i kvalitet hrane" : Zbornik radova. 2022;2:286-291.
https://hdl.handle.net/21.15107/rcub_vinar_12581 .

Rajačić, Milica, Sarap, Nataša, Janković, Marija, "Radiokativnost 137Cs u pečurkama" in X međunarodni naučni skup "Sigurnost i kvalitet hrane" : Zbornik radova, 2 (2022):286-291,
https://hdl.handle.net/21.15107/rcub_vinar_12581 .