TY  - CONF
AU  - Kuzmanović, Predrag
AU  - Forkapić, Sofija
AU  - Čeliković, Igor T.
AU  - Mrđa, Dušan
AU  - Bikit, Kristina
AU  - Hansman, Jan
AU  - Knežević Radić, Jovana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11933
AB  - This paper presents the results of gamma spectrometry measurements of natural radionuclides ( 226Ra, 232Th, and 40K) in some floor and wall ceramic tiles produced in Serbia and used in homes and workplaces. The level of radioactivity of some ceramic tiles produced in Serbia by two major manufacturers–Zorka Keramika and Toza Markovic was examined. The measured mean value of the activity concentration of 226Ra, 232Th, and 40K exceeds the average values in the world for building materials with values of 67.2±6.9 Bq kg-1 for 226Ra, 57.4±4.7 Bq kg-1 for 232Th and 808±48 Bq kg-1 for 40K. Based on these calculated values, the representative level index gamma index, associated with gamma radiation, whose average value is 0.78±0.06, and annual effective dose, whose average value is 0.117±0.009 mSv y-1 for home was obtained. Estimated values fulfill all the recommendations of the European Union for building materials, thus analyzed materials are considered not to be a health hazard for the public.
C3  - Proceedings of Science
T1  - Radioactivity Measurements of Ceramic Tiles Produced in Serbia
VL  - 427
SP  - 193246
DO  - 10.22323/1.427.0281
ER  - 

@conference{
author = "Kuzmanović, Predrag and Forkapić, Sofija and Čeliković, Igor T. and Mrđa, Dušan and Bikit, Kristina and Hansman, Jan and Knežević Radić, Jovana",
year = "2023",
abstract = "This paper presents the results of gamma spectrometry measurements of natural radionuclides ( 226Ra, 232Th, and 40K) in some floor and wall ceramic tiles produced in Serbia and used in homes and workplaces. The level of radioactivity of some ceramic tiles produced in Serbia by two major manufacturers–Zorka Keramika and Toza Markovic was examined. The measured mean value of the activity concentration of 226Ra, 232Th, and 40K exceeds the average values in the world for building materials with values of 67.2±6.9 Bq kg-1 for 226Ra, 57.4±4.7 Bq kg-1 for 232Th and 808±48 Bq kg-1 for 40K. Based on these calculated values, the representative level index gamma index, associated with gamma radiation, whose average value is 0.78±0.06, and annual effective dose, whose average value is 0.117±0.009 mSv y-1 for home was obtained. Estimated values fulfill all the recommendations of the European Union for building materials, thus analyzed materials are considered not to be a health hazard for the public.",
journal = "Proceedings of Science",
title = "Radioactivity Measurements of Ceramic Tiles Produced in Serbia",
volume = "427",
pages = "193246",
doi = "10.22323/1.427.0281"
}

Kuzmanović, P., Forkapić, S., Čeliković, I. T., Mrđa, D., Bikit, K., Hansman, J.,& Knežević Radić, J.. (2023). Radioactivity Measurements of Ceramic Tiles Produced in Serbia. in Proceedings of Science, 427, 193246.
https://doi.org/10.22323/1.427.0281

Kuzmanović P, Forkapić S, Čeliković IT, Mrđa D, Bikit K, Hansman J, Knežević Radić J. Radioactivity Measurements of Ceramic Tiles Produced in Serbia. in Proceedings of Science. 2023;427:193246.
doi:10.22323/1.427.0281 .

Kuzmanović, Predrag, Forkapić, Sofija, Čeliković, Igor T., Mrđa, Dušan, Bikit, Kristina, Hansman, Jan, Knežević Radić, Jovana, "Radioactivity Measurements of Ceramic Tiles Produced in Serbia" in Proceedings of Science, 427 (2023):193246,
https://doi.org/10.22323/1.427.0281 . .

TY  - JOUR
AU  - Kuzmanović, Predrag
AU  - Miljević, Bojan
AU  - Todorović, Nataša
AU  - Forkapić, Sofija
AU  - Čeliković, Igor T.
AU  - Filipović Petrović, Leposava
AU  - Knežević Radić, Jovana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10636
AB  - In this work, the radon emanation coefficients for selected building materials that are most often used in Serbia for covering floor surfaces (concrete, concrete screed, granite, glazed ceramic tiles, marble, roofing tile, and terrazzo tile) were determined, and the influence of the material structure on their values. The concentration of 226Ra activity in the samples was determined using the gamma spectrometry method. Radon emanation was measured with the RAD7 device. The porosity of the samples was tested using mercury intrusion porosimetry and water absorption methods, and the structural analysis was performed using x-ray diffraction analysis and x-ray fluorescence analysis. The measured values of 226Ra activity concentrations were in the range (4.93–298) Bq kg−1, and the estimated values of the radon emanation coefficients were in the range (0.55–6.05) %. The obtained results indicate that the chemical and mineralogical composition, method of production, and the 226Ra activity concentration have an influence on the emanation of radon from the material. No significant correlation was found between the radon emanation coefficient and the open porosity of the material, most likely due to the inhomogeneous presence of pores of different dimensions in the materials. It was established that the total value of the emanation coefficient depends on the emanation coefficient for pores ⩽100 μm in size.
T2  - Journal of Radiological Protection
T1  - The influence of building material structure on radon emanation
VL  - 42
IS  - 4
SP  - 041508
DO  - 10.1088/1361-6498/aca59d
ER  - 

@article{
author = "Kuzmanović, Predrag and Miljević, Bojan and Todorović, Nataša and Forkapić, Sofija and Čeliković, Igor T. and Filipović Petrović, Leposava and Knežević Radić, Jovana",
year = "2022",
abstract = "In this work, the radon emanation coefficients for selected building materials that are most often used in Serbia for covering floor surfaces (concrete, concrete screed, granite, glazed ceramic tiles, marble, roofing tile, and terrazzo tile) were determined, and the influence of the material structure on their values. The concentration of 226Ra activity in the samples was determined using the gamma spectrometry method. Radon emanation was measured with the RAD7 device. The porosity of the samples was tested using mercury intrusion porosimetry and water absorption methods, and the structural analysis was performed using x-ray diffraction analysis and x-ray fluorescence analysis. The measured values of 226Ra activity concentrations were in the range (4.93–298) Bq kg−1, and the estimated values of the radon emanation coefficients were in the range (0.55–6.05) %. The obtained results indicate that the chemical and mineralogical composition, method of production, and the 226Ra activity concentration have an influence on the emanation of radon from the material. No significant correlation was found between the radon emanation coefficient and the open porosity of the material, most likely due to the inhomogeneous presence of pores of different dimensions in the materials. It was established that the total value of the emanation coefficient depends on the emanation coefficient for pores ⩽100 μm in size.",
journal = "Journal of Radiological Protection",
title = "The influence of building material structure on radon emanation",
volume = "42",
number = "4",
pages = "041508",
doi = "10.1088/1361-6498/aca59d"
}

Kuzmanović, P., Miljević, B., Todorović, N., Forkapić, S., Čeliković, I. T., Filipović Petrović, L.,& Knežević Radić, J.. (2022). The influence of building material structure on radon emanation. in Journal of Radiological Protection, 42(4), 041508.
https://doi.org/10.1088/1361-6498/aca59d

Kuzmanović P, Miljević B, Todorović N, Forkapić S, Čeliković IT, Filipović Petrović L, Knežević Radić J. The influence of building material structure on radon emanation. in Journal of Radiological Protection. 2022;42(4):041508.
doi:10.1088/1361-6498/aca59d .

Kuzmanović, Predrag, Miljević, Bojan, Todorović, Nataša, Forkapić, Sofija, Čeliković, Igor T., Filipović Petrović, Leposava, Knežević Radić, Jovana, "The influence of building material structure on radon emanation" in Journal of Radiological Protection, 42, no. 4 (2022):041508,
https://doi.org/10.1088/1361-6498/aca59d . .

TY  - JOUR
AU  - Kuzmanović, Predrag
AU  - Miljević, Bojan
AU  - Todorović, Nataša
AU  - Forkapić, Sofija
AU  - Čeliković, Igor T.
AU  - Filipović Petrović, Leposava
AU  - Knežević Radić, Jovana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10760
AB  - In this work, the radon emanation coefficients for selected building materials that are most often used in Serbia for covering floor surfaces (concrete, concrete screed, granite, glazed ceramic tiles, marble, roofing tile, and terrazzo tile) were determined, and the influence of the material structure on their values. The concentration of 226Ra activity in the samples was determined using the gamma spectrometry method. Radon emanation was measured with the RAD7 device. The porosity of the samples was tested using mercury intrusion porosimetry and water absorption methods, and the structural analysis was performed using x-ray diffraction analysis and x-ray fluorescence analysis. The measured values of 226Ra activity concentrations were in the range (4.93–298) Bq kg−1, and the estimated values of the radon emanation coefficients were in the range (0.55–6.05) %. The obtained results indicate that the chemical and mineralogical composition, method of production, and the 226Ra activity concentration have an influence on the emanation of radon from the material. No significant correlation was found between the radon emanation coefficient and the open porosity of the material, most likely due to the inhomogeneous presence of pores of different dimensions in the materials. It was established that the total value of the emanation coefficient depends on the emanation coefficient for pores ⩽100 μm in size.
T2  - Journal of Radiological Protection
T1  - The influence of building material structure on radon emanation
VL  - 42
IS  - 4
SP  - 041508
DO  - 10.1088/1361-6498/aca59d
ER  - 

@article{
author = "Kuzmanović, Predrag and Miljević, Bojan and Todorović, Nataša and Forkapić, Sofija and Čeliković, Igor T. and Filipović Petrović, Leposava and Knežević Radić, Jovana",
year = "2022",
abstract = "In this work, the radon emanation coefficients for selected building materials that are most often used in Serbia for covering floor surfaces (concrete, concrete screed, granite, glazed ceramic tiles, marble, roofing tile, and terrazzo tile) were determined, and the influence of the material structure on their values. The concentration of 226Ra activity in the samples was determined using the gamma spectrometry method. Radon emanation was measured with the RAD7 device. The porosity of the samples was tested using mercury intrusion porosimetry and water absorption methods, and the structural analysis was performed using x-ray diffraction analysis and x-ray fluorescence analysis. The measured values of 226Ra activity concentrations were in the range (4.93–298) Bq kg−1, and the estimated values of the radon emanation coefficients were in the range (0.55–6.05) %. The obtained results indicate that the chemical and mineralogical composition, method of production, and the 226Ra activity concentration have an influence on the emanation of radon from the material. No significant correlation was found between the radon emanation coefficient and the open porosity of the material, most likely due to the inhomogeneous presence of pores of different dimensions in the materials. It was established that the total value of the emanation coefficient depends on the emanation coefficient for pores ⩽100 μm in size.",
journal = "Journal of Radiological Protection",
title = "The influence of building material structure on radon emanation",
volume = "42",
number = "4",
pages = "041508",
doi = "10.1088/1361-6498/aca59d"
}

Kuzmanović, P., Miljević, B., Todorović, N., Forkapić, S., Čeliković, I. T., Filipović Petrović, L.,& Knežević Radić, J.. (2022). The influence of building material structure on radon emanation. in Journal of Radiological Protection, 42(4), 041508.
https://doi.org/10.1088/1361-6498/aca59d

Kuzmanović P, Miljević B, Todorović N, Forkapić S, Čeliković IT, Filipović Petrović L, Knežević Radić J. The influence of building material structure on radon emanation. in Journal of Radiological Protection. 2022;42(4):041508.
doi:10.1088/1361-6498/aca59d .

Kuzmanović, Predrag, Miljević, Bojan, Todorović, Nataša, Forkapić, Sofija, Čeliković, Igor T., Filipović Petrović, Leposava, Knežević Radić, Jovana, "The influence of building material structure on radon emanation" in Journal of Radiological Protection, 42, no. 4 (2022):041508,
https://doi.org/10.1088/1361-6498/aca59d . .

TY  - CONF
AU  - Kuzmanović, Predrag
AU  - Čeliković, Igor T.
AU  - Forkapić, Sofija
AU  - Todorović, Nataša
AU  - Filipović Petrović, Leposava
AU  - Mrđa, Dušan
AU  - Knežević, Jovana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11128
AB  - Phosphogypsum is a waste that is generated in the production of fertilizers and is very similar to the natural gypsum, thus its use in the construction industry is possible. It usually contains an increased concentration of 226Ra in its composition. The paper presents the results of measuring the radon emanation coefficients for phosphogypsum, natural gypsum and a mixture of natural gypsum and phosphogypsum (50%), that could be potentially used for the production of gypsum boards that are widely applied in construction. Using the method of gamma spectrometry the concentration of 226Ra in the samples was determined, while the concentration of emanated radon from the samples was measured in the specially constructed chambers of different volumes (1.5 l, 2.5 l, 4.25 l, and 30 l), using active radon monitors RAD7 (Durridge Company) and RTM1688-2 (Sarad GmbH). Radon emanation measurements were performed for about 100 cycles of 1 h, after which the emanation curve was fit and the equilibrium concentration of radon activity after one month was theoretically estimated. The effect of chamber volumes on the obtained values of the radon emanation coefficient was investigated. On the basis of the obtained emanation coefficients, it is concluded that these values are strongly dependent on the volume of the measuring chamber and that they increase with expanding the chamber volume. Therefore, it is recommended to use larger volumes of measuring chambers when determining the emanation coefficient for phosphogypsum or natural gypsum. In this way, the real conditions in rooms that are potentially constructed of such materials are better represented, while at the same time the existing effect is neglected.
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
T1  - Determination of radon emanation for phosphogypsum produced in Serbia
SP  - 199
DO  - 10.21175/rad.abstr.book.2021.28.21
ER  - 

@conference{
author = "Kuzmanović, Predrag and Čeliković, Igor T. and Forkapić, Sofija and Todorović, Nataša and Filipović Petrović, Leposava and Mrđa, Dušan and Knežević, Jovana",
year = "2021",
abstract = "Phosphogypsum is a waste that is generated in the production of fertilizers and is very similar to the natural gypsum, thus its use in the construction industry is possible. It usually contains an increased concentration of 226Ra in its composition. The paper presents the results of measuring the radon emanation coefficients for phosphogypsum, natural gypsum and a mixture of natural gypsum and phosphogypsum (50%), that could be potentially used for the production of gypsum boards that are widely applied in construction. Using the method of gamma spectrometry the concentration of 226Ra in the samples was determined, while the concentration of emanated radon from the samples was measured in the specially constructed chambers of different volumes (1.5 l, 2.5 l, 4.25 l, and 30 l), using active radon monitors RAD7 (Durridge Company) and RTM1688-2 (Sarad GmbH). Radon emanation measurements were performed for about 100 cycles of 1 h, after which the emanation curve was fit and the equilibrium concentration of radon activity after one month was theoretically estimated. The effect of chamber volumes on the obtained values of the radon emanation coefficient was investigated. On the basis of the obtained emanation coefficients, it is concluded that these values are strongly dependent on the volume of the measuring chamber and that they increase with expanding the chamber volume. Therefore, it is recommended to use larger volumes of measuring chambers when determining the emanation coefficient for phosphogypsum or natural gypsum. In this way, the real conditions in rooms that are potentially constructed of such materials are better represented, while at the same time the existing effect is neglected.",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro",
title = "Determination of radon emanation for phosphogypsum produced in Serbia",
pages = "199",
doi = "10.21175/rad.abstr.book.2021.28.21"
}

Kuzmanović, P., Čeliković, I. T., Forkapić, S., Todorović, N., Filipović Petrović, L., Mrđa, D.,& Knežević, J.. (2021). Determination of radon emanation for phosphogypsum produced in Serbia. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro
RAD Centre, Niš, Serbia., 199.
https://doi.org/10.21175/rad.abstr.book.2021.28.21

Kuzmanović P, Čeliković IT, Forkapić S, Todorović N, Filipović Petrović L, Mrđa D, Knežević J. Determination of radon emanation for phosphogypsum produced in Serbia. in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro. 2021;:199.
doi:10.21175/rad.abstr.book.2021.28.21 .

Kuzmanović, Predrag, Čeliković, Igor T., Forkapić, Sofija, Todorović, Nataša, Filipović Petrović, Leposava, Mrđa, Dušan, Knežević, Jovana, "Determination of radon emanation for phosphogypsum produced in Serbia" in RAD 2021 : 9th International Conference on Radiation in Various Fields of Research : book of abstracts; June 14-18; Herceg Novi, Montenegro (2021):199,
https://doi.org/10.21175/rad.abstr.book.2021.28.21 . .

TY  - CONF
AU  - Todorović, Nataša
AU  - Nikolov, Jovana
AU  - Stojković, Ivana
AU  - Hansman, Jan
AU  - Kuzmanović, Predrag
AU  - Vraničar, Andrej
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8319
UR  - https://plus.sr.cobiss.net/opac7/bib/245691404
UR  - http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf
AB  - U radu je prikazano poređenje različitih metoda i tehnika za određivanje 226Ra u vodi:
tečna scinitlaciona spektrometrija (LSC), alfa spektrometrija i gama spektrometrija.
Tehnikom LSC određen je sadržaj 226Ra u vodi korišćenjem sledećih metoda:
standardne test metode ASTM D 7283-06 i EPA metode 913.0. Gama spektrometrijom
je sadržaj 226Ra određen direktnom metodom u Marineli geometriji. Alfa spektrometrom
RAD 7 određena je koncentracija aktivnosti 226Ra u vodi korišćenjem protokola
Wat250. Izvršeno je poređene rezultata dobijenih ovim metodama i dat je pregled
prednosti i nedostataka svake metode i tehnike. Dobijene eksperimentalne vrednosti za
sve metode su date sa odgovarajućim korekcijom.
AB  - The measurement of 226Ra in natural water samples is important because it is one of the
most hazardous elements with respect to internal radiation exposure. Therefore, in the
monitoring studies it is desirable to have a precise and accurate technique for the
determination of the activity concentration of this radionuclide.
This paper presents a comparison of different techniques and methods for 226
Ra in
water samples spiked with different concentrations of 226Ra isotope: LSC (Liquid
Scintillation Counting), alpha and gamma spectrometry. An overview of the advantages
and disadvantages of each techniques are presented. 226Ra in water samples were
determined by gamma spectrometry using direct method (untreated water samples) and
by RAD7 solid state detector. For 226Ra determination by LSC two different methods
were tested: ASTM D 7283-06 Standard test method for alpha and beta activity in water
by liquid scintillation and EPA Method 913.0 for radon determination in drinking
water.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Poređenje metoda za ispitivanje Ra226 u vodi
T1  - Different techniques for Ra226 determination in water samples
SP  - 482
EP  - 492
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8319
ER  - 

@conference{
author = "Todorović, Nataša and Nikolov, Jovana and Stojković, Ivana and Hansman, Jan and Kuzmanović, Predrag and Vraničar, Andrej",
year = "2017",
abstract = "U radu je prikazano poređenje različitih metoda i tehnika za određivanje 226Ra u vodi:
tečna scinitlaciona spektrometrija (LSC), alfa spektrometrija i gama spektrometrija.
Tehnikom LSC određen je sadržaj 226Ra u vodi korišćenjem sledećih metoda:
standardne test metode ASTM D 7283-06 i EPA metode 913.0. Gama spektrometrijom
je sadržaj 226Ra određen direktnom metodom u Marineli geometriji. Alfa spektrometrom
RAD 7 određena je koncentracija aktivnosti 226Ra u vodi korišćenjem protokola
Wat250. Izvršeno je poređene rezultata dobijenih ovim metodama i dat je pregled
prednosti i nedostataka svake metode i tehnike. Dobijene eksperimentalne vrednosti za
sve metode su date sa odgovarajućim korekcijom., The measurement of 226Ra in natural water samples is important because it is one of the
most hazardous elements with respect to internal radiation exposure. Therefore, in the
monitoring studies it is desirable to have a precise and accurate technique for the
determination of the activity concentration of this radionuclide.
This paper presents a comparison of different techniques and methods for 226
Ra in
water samples spiked with different concentrations of 226Ra isotope: LSC (Liquid
Scintillation Counting), alpha and gamma spectrometry. An overview of the advantages
and disadvantages of each techniques are presented. 226Ra in water samples were
determined by gamma spectrometry using direct method (untreated water samples) and
by RAD7 solid state detector. For 226Ra determination by LSC two different methods
were tested: ASTM D 7283-06 Standard test method for alpha and beta activity in water
by liquid scintillation and EPA Method 913.0 for radon determination in drinking
water.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Poređenje metoda za ispitivanje Ra226 u vodi, Different techniques for Ra226 determination in water samples",
pages = "482-492",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8319"
}

Todorović, N., Nikolov, J., Stojković, I., Hansman, J., Kuzmanović, P.,& Vraničar, A.. (2017). Poređenje metoda za ispitivanje Ra226 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 482-492.
https://hdl.handle.net/21.15107/rcub_vinar_8319

Todorović N, Nikolov J, Stojković I, Hansman J, Kuzmanović P, Vraničar A. Poređenje metoda za ispitivanje Ra226 u vodi. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:482-492.
https://hdl.handle.net/21.15107/rcub_vinar_8319 .

Todorović, Nataša, Nikolov, Jovana, Stojković, Ivana, Hansman, Jan, Kuzmanović, Predrag, Vraničar, Andrej, "Poređenje metoda za ispitivanje Ra226 u vodi" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):482-492,
https://hdl.handle.net/21.15107/rcub_vinar_8319 .