TY  - JOUR
AU  - Vukanac, Ivana
AU  - Šešlak, Bojan Ž.
AU  - Kandić, Aleksandar
AU  - Čeliković, Igor T.
AU  - Mladenović-Nikolić, Nataša
AU  - Milanović, Tamara J.
AU  - Obradović, Zorica
AU  - Đurašević, Mirjana M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10096
AB  - In order to compare alpha-particle and gamma-ray spectrometry, the activity concentrations of 235U, 238U and 226Ra in samples of coal, slag and fly-ash from the thermal power plant “Nikola Tesla A”, Serbia, were determined by these two methods. Methods were compared and discussed from the point of view of its precision, difficulty to apply and complexity. Gamma-ray spectrometry was performed with HPGe (High Purity Germanium) spectrometer, while alpha activity was measured by PIPS (Passivated Implanted Planar Silicon) detector. For the alpha-particle spectrometry, the chemical procedures applied were chromatographic resin extraction for uranium isotopes and micro-coprecipitation for 226Ra. Thin alpha sources were prepared by electrodeposition and filtration through polypropylene membrane filter for uranium determination, while filtration technique was performed for radium sources. For the evaluation of the statistical difference between individual measurement results obtained by application of two methods Z - test was used. In order to evaluate the difference between two methods used, paired samples t-test and F-test were applied. Results show that there is no statistical difference between two methods used and that gamma-ray spectrometry is a valid alternative to time consuming alpha spectrometry.
T2  - Radiation Physics and Chemistry
T1  - A comparison of alpha-particle and gamma-ray spectrometry methods for determination of 235U, 238U and 226Ra activity concentration in samples of coal, slag and fly-ash
VL  - 193
SP  - 109933
DO  - 10.1016/j.radphyschem.2021.109933
ER  - 

@article{
author = "Vukanac, Ivana and Šešlak, Bojan Ž. and Kandić, Aleksandar and Čeliković, Igor T. and Mladenović-Nikolić, Nataša and Milanović, Tamara J. and Obradović, Zorica and Đurašević, Mirjana M.",
year = "2022",
abstract = "In order to compare alpha-particle and gamma-ray spectrometry, the activity concentrations of 235U, 238U and 226Ra in samples of coal, slag and fly-ash from the thermal power plant “Nikola Tesla A”, Serbia, were determined by these two methods. Methods were compared and discussed from the point of view of its precision, difficulty to apply and complexity. Gamma-ray spectrometry was performed with HPGe (High Purity Germanium) spectrometer, while alpha activity was measured by PIPS (Passivated Implanted Planar Silicon) detector. For the alpha-particle spectrometry, the chemical procedures applied were chromatographic resin extraction for uranium isotopes and micro-coprecipitation for 226Ra. Thin alpha sources were prepared by electrodeposition and filtration through polypropylene membrane filter for uranium determination, while filtration technique was performed for radium sources. For the evaluation of the statistical difference between individual measurement results obtained by application of two methods Z - test was used. In order to evaluate the difference between two methods used, paired samples t-test and F-test were applied. Results show that there is no statistical difference between two methods used and that gamma-ray spectrometry is a valid alternative to time consuming alpha spectrometry.",
journal = "Radiation Physics and Chemistry",
title = "A comparison of alpha-particle and gamma-ray spectrometry methods for determination of 235U, 238U and 226Ra activity concentration in samples of coal, slag and fly-ash",
volume = "193",
pages = "109933",
doi = "10.1016/j.radphyschem.2021.109933"
}

Vukanac, I., Šešlak, B. Ž., Kandić, A., Čeliković, I. T., Mladenović-Nikolić, N., Milanović, T. J., Obradović, Z.,& Đurašević, M. M.. (2022). A comparison of alpha-particle and gamma-ray spectrometry methods for determination of 235U, 238U and 226Ra activity concentration in samples of coal, slag and fly-ash. in Radiation Physics and Chemistry, 193, 109933.
https://doi.org/10.1016/j.radphyschem.2021.109933

Vukanac I, Šešlak BŽ, Kandić A, Čeliković IT, Mladenović-Nikolić N, Milanović TJ, Obradović Z, Đurašević MM. A comparison of alpha-particle and gamma-ray spectrometry methods for determination of 235U, 238U and 226Ra activity concentration in samples of coal, slag and fly-ash. in Radiation Physics and Chemistry. 2022;193:109933.
doi:10.1016/j.radphyschem.2021.109933 .

Vukanac, Ivana, Šešlak, Bojan Ž., Kandić, Aleksandar, Čeliković, Igor T., Mladenović-Nikolić, Nataša, Milanović, Tamara J., Obradović, Zorica, Đurašević, Mirjana M., "A comparison of alpha-particle and gamma-ray spectrometry methods for determination of 235U, 238U and 226Ra activity concentration in samples of coal, slag and fly-ash" in Radiation Physics and Chemistry, 193 (2022):109933,
https://doi.org/10.1016/j.radphyschem.2021.109933 . .

TY  - JOUR
AU  - Ali Santoro, M. C.
AU  - Anagnostakis, Marios J.
AU  - Boshkova, T
AU  - Camacho, A
AU  - Iljadica, M.C. Fornaciari
AU  - Collins, S.M.
AU  - Perez, R Diaz
AU  - Delgado, J.U.
AU  - Đurašević, Mirjana M.
AU  - Duch, M.A.
AU  - Elvira, V.H.
AU  - Gomes, R.S.
AU  - Gudelis, A
AU  - Gurau, Daniela
AU  - Hurtado Bermudez, S
AU  - Idoeta, R
AU  - Jevremović, Aleksandar M.
AU  - Kandić, Aleksandar
AU  - Korun, M
AU  - Karfopoulos, Konstantinos L.
AU  - Laubenstein, Matthias
AU  - Long, S
AU  - Margineanu, R.M.
AU  - Mitsios, I
AU  - Mulas, D
AU  - Krneta-Nikolić, Jelena D.
AU  - Pantelica, A
AU  - Medina, V Peyres
AU  - Pibida, L
AU  - Potiriadis, C
AU  - Silva, R.L.
AU  - Siri, S
AU  - Šešlak, Bojan Ž.
AU  - Verheyen, L
AU  - Vodenik, B
AU  - Vukanac, Ivana
AU  - Wiedner, H
AU  - Zorko, B
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8530
AB  - The probabilities of locating peaks with a high relative peak-area uncertainty were determined empirically with nine types of peak-location software used in laboratories engaged in gamma-ray spectrometry measurements. It was found that it is not possible to locate peaks with a probability of 0.95, when they have a relative peak-area uncertainty in excess of 50%. Locating peaks at these relatively high peak-area uncertainties with a probability greater than 0.95 is only possible in the library-driven mode, where the peak positions are supposed a-priori. The deficiencies of the library-driven mode and the possibilities to improve the probabilities of locating peaks are briefly discussed. © 2019 Elsevier Ltd
T2  - Applied Radiation and Isotopes
T1  - Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty
VL  - 155
SP  - 108920
DO  - 10.1016/j.apradiso.2019.108920
ER  - 

@article{
author = "Ali Santoro, M. C. and Anagnostakis, Marios J. and Boshkova, T and Camacho, A and Iljadica, M.C. Fornaciari and Collins, S.M. and Perez, R Diaz and Delgado, J.U. and Đurašević, Mirjana M. and Duch, M.A. and Elvira, V.H. and Gomes, R.S. and Gudelis, A and Gurau, Daniela and Hurtado Bermudez, S and Idoeta, R and Jevremović, Aleksandar M. and Kandić, Aleksandar and Korun, M and Karfopoulos, Konstantinos L. and Laubenstein, Matthias and Long, S and Margineanu, R.M. and Mitsios, I and Mulas, D and Krneta-Nikolić, Jelena D. and Pantelica, A and Medina, V Peyres and Pibida, L and Potiriadis, C and Silva, R.L. and Siri, S and Šešlak, Bojan Ž. and Verheyen, L and Vodenik, B and Vukanac, Ivana and Wiedner, H and Zorko, B",
year = "2020",
abstract = "The probabilities of locating peaks with a high relative peak-area uncertainty were determined empirically with nine types of peak-location software used in laboratories engaged in gamma-ray spectrometry measurements. It was found that it is not possible to locate peaks with a probability of 0.95, when they have a relative peak-area uncertainty in excess of 50%. Locating peaks at these relatively high peak-area uncertainties with a probability greater than 0.95 is only possible in the library-driven mode, where the peak positions are supposed a-priori. The deficiencies of the library-driven mode and the possibilities to improve the probabilities of locating peaks are briefly discussed. © 2019 Elsevier Ltd",
journal = "Applied Radiation and Isotopes",
title = "Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty",
volume = "155",
pages = "108920",
doi = "10.1016/j.apradiso.2019.108920"
}

Ali Santoro, M. C., Anagnostakis, M. J., Boshkova, T., Camacho, A., Iljadica, M.C. F., Collins, S.M., Perez, R. D., Delgado, J.U., Đurašević, M. M., Duch, M.A., Elvira, V.H., Gomes, R.S., Gudelis, A., Gurau, D., Hurtado Bermudez, S., Idoeta, R., Jevremović, A. M., Kandić, A., Korun, M., Karfopoulos, K. L., Laubenstein, M., Long, S., Margineanu, R.M., Mitsios, I., Mulas, D., Krneta-Nikolić, J. D., Pantelica, A., Medina, V. P., Pibida, L., Potiriadis, C., Silva, R.L., Siri, S., Šešlak, B. Ž., Verheyen, L., Vodenik, B., Vukanac, I., Wiedner, H.,& Zorko, B.. (2020). Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty. in Applied Radiation and Isotopes, 155, 108920.
https://doi.org/10.1016/j.apradiso.2019.108920

Ali Santoro MC, Anagnostakis MJ, Boshkova T, Camacho A, Iljadica MF, Collins S, Perez RD, Delgado J, Đurašević MM, Duch M, Elvira V, Gomes R, Gudelis A, Gurau D, Hurtado Bermudez S, Idoeta R, Jevremović AM, Kandić A, Korun M, Karfopoulos KL, Laubenstein M, Long S, Margineanu R, Mitsios I, Mulas D, Krneta-Nikolić JD, Pantelica A, Medina VP, Pibida L, Potiriadis C, Silva R, Siri S, Šešlak BŽ, Verheyen L, Vodenik B, Vukanac I, Wiedner H, Zorko B. Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty. in Applied Radiation and Isotopes. 2020;155:108920.
doi:10.1016/j.apradiso.2019.108920 .

Ali Santoro, M. C., Anagnostakis, Marios J., Boshkova, T, Camacho, A, Iljadica, M.C. Fornaciari, Collins, S.M., Perez, R Diaz, Delgado, J.U., Đurašević, Mirjana M., Duch, M.A., Elvira, V.H., Gomes, R.S., Gudelis, A, Gurau, Daniela, Hurtado Bermudez, S, Idoeta, R, Jevremović, Aleksandar M., Kandić, Aleksandar, Korun, M, Karfopoulos, Konstantinos L., Laubenstein, Matthias, Long, S, Margineanu, R.M., Mitsios, I, Mulas, D, Krneta-Nikolić, Jelena D., Pantelica, A, Medina, V Peyres, Pibida, L, Potiriadis, C, Silva, R.L., Siri, S, Šešlak, Bojan Ž., Verheyen, L, Vodenik, B, Vukanac, Ivana, Wiedner, H, Zorko, B, "Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty" in Applied Radiation and Isotopes, 155 (2020):108920,
https://doi.org/10.1016/j.apradiso.2019.108920 . .

TY  - JOUR
AU  - Bruggeman, Michel
AU  - Collins, Sean M.
AU  - Done, Laurentiu
AU  - Đurašević, Mirjana M.
AU  - Duch, Maria A.
AU  - Gudelis, Arunas
AU  - Hyža, Miroslav
AU  - Jevremović, Aleksandar M.
AU  - Kandić, Aleksandar
AU  - Korun, Matjaž
AU  - Ilie, S.
AU  - Lee, J. M.
AU  - Lee, K. B.
AU  - Luca, Aurelian
AU  - Margineanu, Romul M.
AU  - Pantelica, Ana I.
AU  - Serrano, Isabel
AU  - Šešlak, Bojan Ž.
AU  - Tugulan, Liviu C.
AU  - Verheyen, Leen
AU  - Vodenik, Branko
AU  - Vukanac, Ivana
AU  - Zeng, Zhi
AU  - Zorko, Benjamin
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7664
AB  - A method is presented for calculating the expected number of counts in peaks that have a large relative peak area uncertainty and appear in measured gamma-ray spectra. The method was applied to calculations of the correction factors for peaks occurring in the spectra of radon daughters. It was shown that the factors used for correcting the calculated peak areas to their expected values decrease with an increasing relative peak-area uncertainty. The accuracy of taking the systematic influence inducing the correction factors into account is given by the dispersion of the correction factors corresponding to specific peaks. It was shown that the highest accuracy is obtained in the peak analyses with the GammaVision and Gamma-W software.
T2  - Applied Radiation and Isotopes
T1  - Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty
VL  - 134
IS  - SI
SP  - 51
EP  - 55
DO  - 10.1016/j.apradiso.2017.06.016
ER  - 

@article{
author = "Bruggeman, Michel and Collins, Sean M. and Done, Laurentiu and Đurašević, Mirjana M. and Duch, Maria A. and Gudelis, Arunas and Hyža, Miroslav and Jevremović, Aleksandar M. and Kandić, Aleksandar and Korun, Matjaž and Ilie, S. and Lee, J. M. and Lee, K. B. and Luca, Aurelian and Margineanu, Romul M. and Pantelica, Ana I. and Serrano, Isabel and Šešlak, Bojan Ž. and Tugulan, Liviu C. and Verheyen, Leen and Vodenik, Branko and Vukanac, Ivana and Zeng, Zhi and Zorko, Benjamin",
year = "2018",
abstract = "A method is presented for calculating the expected number of counts in peaks that have a large relative peak area uncertainty and appear in measured gamma-ray spectra. The method was applied to calculations of the correction factors for peaks occurring in the spectra of radon daughters. It was shown that the factors used for correcting the calculated peak areas to their expected values decrease with an increasing relative peak-area uncertainty. The accuracy of taking the systematic influence inducing the correction factors into account is given by the dispersion of the correction factors corresponding to specific peaks. It was shown that the highest accuracy is obtained in the peak analyses with the GammaVision and Gamma-W software.",
journal = "Applied Radiation and Isotopes",
title = "Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty",
volume = "134",
number = "SI",
pages = "51-55",
doi = "10.1016/j.apradiso.2017.06.016"
}

Bruggeman, M., Collins, S. M., Done, L., Đurašević, M. M., Duch, M. A., Gudelis, A., Hyža, M., Jevremović, A. M., Kandić, A., Korun, M., Ilie, S., Lee, J. M., Lee, K. B., Luca, A., Margineanu, R. M., Pantelica, A. I., Serrano, I., Šešlak, B. Ž., Tugulan, L. C., Verheyen, L., Vodenik, B., Vukanac, I., Zeng, Z.,& Zorko, B.. (2018). Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty. in Applied Radiation and Isotopes, 134(SI), 51-55.
https://doi.org/10.1016/j.apradiso.2017.06.016

Bruggeman M, Collins SM, Done L, Đurašević MM, Duch MA, Gudelis A, Hyža M, Jevremović AM, Kandić A, Korun M, Ilie S, Lee JM, Lee KB, Luca A, Margineanu RM, Pantelica AI, Serrano I, Šešlak BŽ, Tugulan LC, Verheyen L, Vodenik B, Vukanac I, Zeng Z, Zorko B. Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty. in Applied Radiation and Isotopes. 2018;134(SI):51-55.
doi:10.1016/j.apradiso.2017.06.016 .

Bruggeman, Michel, Collins, Sean M., Done, Laurentiu, Đurašević, Mirjana M., Duch, Maria A., Gudelis, Arunas, Hyža, Miroslav, Jevremović, Aleksandar M., Kandić, Aleksandar, Korun, Matjaž, Ilie, S., Lee, J. M., Lee, K. B., Luca, Aurelian, Margineanu, Romul M., Pantelica, Ana I., Serrano, Isabel, Šešlak, Bojan Ž., Tugulan, Liviu C., Verheyen, Leen, Vodenik, Branko, Vukanac, Ivana, Zeng, Zhi, Zorko, Benjamin, "Systematic influences on the areas of peaks in gamma-ray spectra that have a large statistical uncertainty" in Applied Radiation and Isotopes, 134, no. SI (2018):51-55,
https://doi.org/10.1016/j.apradiso.2017.06.016 . .

TY  - JOUR
AU  - Šešlak, Bojan Ž.
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Erić, Milić D.
AU  - Jevremović, Aleksandar M.
AU  - Benedik, Ljudmila
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1387
AB  - In order to compare three different techniques and estimate radiological impact, activity concentration of Pb-210 in coal, slag and ash samples from thermal power plant Nikola Tesla, Serbia, were measured, and results are presented in this study. Determination of Pb-210 was carried out in three ways: using HPGe gamma spectrometer and via in-growth of Po-210 and Bi-210 by alpha-particle spectrometry and proportional counting, respectively. The results obtained for three different techniques were compared. Statistical analysis and comparison of methods were carried out by combination of Z score and chi (2) statistical tests. Tests results, as well as values of measured activities concentrations obtained by alpha and gamma spectrometry, showed that gamma spectrometry is a valid alternative to time-consuming alpha spectrometry for low level activity measurements of Pb-210. This remark is also valid even for gamma spectrometers with poor efficiency in low energy region.
T2  - Journal of Radioanalytical and Nuclear Chemistry
T1  - Determination of Pb-210 by direct gamma-ray spectrometry, beta counting via Bi-210 and alpha-particle spectrometry via Po-210 in coal, slag and ash samples from thermal power plant
VL  - 311
IS  - 1
SP  - 719
EP  - 726
DO  - 10.1007/s10967-016-5028-6
ER  - 

@article{
author = "Šešlak, Bojan Ž. and Vukanac, Ivana and Kandić, Aleksandar and Đurašević, Mirjana M. and Erić, Milić D. and Jevremović, Aleksandar M. and Benedik, Ljudmila",
year = "2017",
abstract = "In order to compare three different techniques and estimate radiological impact, activity concentration of Pb-210 in coal, slag and ash samples from thermal power plant Nikola Tesla, Serbia, were measured, and results are presented in this study. Determination of Pb-210 was carried out in three ways: using HPGe gamma spectrometer and via in-growth of Po-210 and Bi-210 by alpha-particle spectrometry and proportional counting, respectively. The results obtained for three different techniques were compared. Statistical analysis and comparison of methods were carried out by combination of Z score and chi (2) statistical tests. Tests results, as well as values of measured activities concentrations obtained by alpha and gamma spectrometry, showed that gamma spectrometry is a valid alternative to time-consuming alpha spectrometry for low level activity measurements of Pb-210. This remark is also valid even for gamma spectrometers with poor efficiency in low energy region.",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Determination of Pb-210 by direct gamma-ray spectrometry, beta counting via Bi-210 and alpha-particle spectrometry via Po-210 in coal, slag and ash samples from thermal power plant",
volume = "311",
number = "1",
pages = "719-726",
doi = "10.1007/s10967-016-5028-6"
}

Šešlak, B. Ž., Vukanac, I., Kandić, A., Đurašević, M. M., Erić, M. D., Jevremović, A. M.,& Benedik, L.. (2017). Determination of Pb-210 by direct gamma-ray spectrometry, beta counting via Bi-210 and alpha-particle spectrometry via Po-210 in coal, slag and ash samples from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry, 311(1), 719-726.
https://doi.org/10.1007/s10967-016-5028-6

Šešlak BŽ, Vukanac I, Kandić A, Đurašević MM, Erić MD, Jevremović AM, Benedik L. Determination of Pb-210 by direct gamma-ray spectrometry, beta counting via Bi-210 and alpha-particle spectrometry via Po-210 in coal, slag and ash samples from thermal power plant. in Journal of Radioanalytical and Nuclear Chemistry. 2017;311(1):719-726.
doi:10.1007/s10967-016-5028-6 .

Šešlak, Bojan Ž., Vukanac, Ivana, Kandić, Aleksandar, Đurašević, Mirjana M., Erić, Milić D., Jevremović, Aleksandar M., Benedik, Ljudmila, "Determination of Pb-210 by direct gamma-ray spectrometry, beta counting via Bi-210 and alpha-particle spectrometry via Po-210 in coal, slag and ash samples from thermal power plant" in Journal of Radioanalytical and Nuclear Chemistry, 311, no. 1 (2017):719-726,
https://doi.org/10.1007/s10967-016-5028-6 . .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Šešlak, Bojan Ž.
AU  - Čeliković, Igor T.
AU  - Jevremović, Aleksandar M.
AU  - Bogojević, Suzana A.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1936
AB  - Laundry detergents are chemicals widely used in everyday life, and in numerous industry branches. In order to perceive the radiological aspect of environmental pollution by wastewater, the analysis of laundry detergents available on the Serbian market was undertaken. Laundry detergent samples were measured by means of gamma spectrometry and the results are presented in this paper. Analysis of the obtained activity concentrations showed that laundry detergents in Serbia mostly fulfill the international recommendation and requirements regarding the phosphate content. Besides that, the content of the detected radionuclides in laundry detergent samples indicates the minor radiological risk to the environment via wastewaters.
T2  - Nuclear technology and radiation protection
T1  - Radionuclide Content in Laundry Detergents Commercially Available on the Serbian Market and Assessment of Radiological Environmental Hazards
VL  - 32
IS  - 4
SP  - 366
EP  - 370
DO  - 10.2298/NTRP1704366V
ER  - 

@article{
author = "Vukanac, Ivana and Kandić, Aleksandar and Đurašević, Mirjana M. and Šešlak, Bojan Ž. and Čeliković, Igor T. and Jevremović, Aleksandar M. and Bogojević, Suzana A.",
year = "2017",
abstract = "Laundry detergents are chemicals widely used in everyday life, and in numerous industry branches. In order to perceive the radiological aspect of environmental pollution by wastewater, the analysis of laundry detergents available on the Serbian market was undertaken. Laundry detergent samples were measured by means of gamma spectrometry and the results are presented in this paper. Analysis of the obtained activity concentrations showed that laundry detergents in Serbia mostly fulfill the international recommendation and requirements regarding the phosphate content. Besides that, the content of the detected radionuclides in laundry detergent samples indicates the minor radiological risk to the environment via wastewaters.",
journal = "Nuclear technology and radiation protection",
title = "Radionuclide Content in Laundry Detergents Commercially Available on the Serbian Market and Assessment of Radiological Environmental Hazards",
volume = "32",
number = "4",
pages = "366-370",
doi = "10.2298/NTRP1704366V"
}

Vukanac, I., Kandić, A., Đurašević, M. M., Šešlak, B. Ž., Čeliković, I. T., Jevremović, A. M.,& Bogojević, S. A.. (2017). Radionuclide Content in Laundry Detergents Commercially Available on the Serbian Market and Assessment of Radiological Environmental Hazards. in Nuclear technology and radiation protection, 32(4), 366-370.
https://doi.org/10.2298/NTRP1704366V

Vukanac I, Kandić A, Đurašević MM, Šešlak BŽ, Čeliković IT, Jevremović AM, Bogojević SA. Radionuclide Content in Laundry Detergents Commercially Available on the Serbian Market and Assessment of Radiological Environmental Hazards. in Nuclear technology and radiation protection. 2017;32(4):366-370.
doi:10.2298/NTRP1704366V .

Vukanac, Ivana, Kandić, Aleksandar, Đurašević, Mirjana M., Šešlak, Bojan Ž., Čeliković, Igor T., Jevremović, Aleksandar M., Bogojević, Suzana A., "Radionuclide Content in Laundry Detergents Commercially Available on the Serbian Market and Assessment of Radiological Environmental Hazards" in Nuclear technology and radiation protection, 32, no. 4 (2017):366-370,
https://doi.org/10.2298/NTRP1704366V . .

TY  - CONF
AU  - Jevremović, Aleksandar M.
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Vukanac, Ivana
AU  - Šešlak, Bojan Ž.
AU  - Milošević, Zoran
AU  - Puzović, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8331
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  - У гама спектрометрији се често сусрећемо са ефектом коинцидентног
сумирања, а самим тим постоји потреба за одређивањем корекционих фактора.
Циљ истраживања описаног у овом раду је поређење вредности корекционих
фактора за тачкасти извор
88Y добијених помоћу софтверског пакета
GESPECOR (Монте Карло методом) и експериментално добијених вредности.
Мерења су обављена помоћу полупроводничког HPGe спектрометра, при чему је
тачкасти извор био позициониран на аксијалној оси детектора на девет
различитих растојања од капе детектора. Формиран је систем једначина, који
осим нуклеарних података, као улазне параметре користи и експериментално
добијене вредности тоталног одброја у целом спектру, као и одброја испод
фотопикова. На основу решавања система једначина одређени су корекциони
фактори за коинцидентно сумирање. Упоређивањем резултата, утврђено је да
се вредности корекционих фактора добијених помоћу ове две методе разликују до
3 %.
AB  - In gamma ray spectrometry often deals with coincidence summing effect, and therefore
calculation of correction factors is necessary. Coincidence summing effect play an
important role in HPGe spectrometry at low source-detector distances, due to the large
solid angle subtended by the detector at the source. The aim of research described in
this paper was to compare values of correction factors for point source 88Y obtained
using the software package GESPECOR (Monte-Carlo method) and experimentally
obtained values. Measurements were performed using a semiconductor HPGe
spectrometer, wherein point source was axially located on detector at nine different
distances. The system of equations was formed whereas net areas in full energy peaks
as well as in entire spectrum were used as input data. The system was solved and
correction factors for point source 88Y were determined. By comparing the obtained
values, it was found that correction factors obtained by these two methods have
discrepancy less than 3 %.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Одређивање корекционих фактора за коинцидентно сумирање у случају тачкастог извора Y88
T1  - Determination of coincidence summing correction factors for Y88 point source
SP  - 574
EP  - 578
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8331
ER  - 

@conference{
author = "Jevremović, Aleksandar M. and Kandić, Aleksandar and Đurašević, Mirjana M. and Vukanac, Ivana and Šešlak, Bojan Ž. and Milošević, Zoran and Puzović, Jovan",
year = "2017",
abstract = "У гама спектрометрији се често сусрећемо са ефектом коинцидентног
сумирања, а самим тим постоји потреба за одређивањем корекционих фактора.
Циљ истраживања описаног у овом раду је поређење вредности корекционих
фактора за тачкасти извор
88Y добијених помоћу софтверског пакета
GESPECOR (Монте Карло методом) и експериментално добијених вредности.
Мерења су обављена помоћу полупроводничког HPGe спектрометра, при чему је
тачкасти извор био позициониран на аксијалној оси детектора на девет
различитих растојања од капе детектора. Формиран је систем једначина, који
осим нуклеарних података, као улазне параметре користи и експериментално
добијене вредности тоталног одброја у целом спектру, као и одброја испод
фотопикова. На основу решавања система једначина одређени су корекциони
фактори за коинцидентно сумирање. Упоређивањем резултата, утврђено је да
се вредности корекционих фактора добијених помоћу ове две методе разликују до
3 %., In gamma ray spectrometry often deals with coincidence summing effect, and therefore
calculation of correction factors is necessary. Coincidence summing effect play an
important role in HPGe spectrometry at low source-detector distances, due to the large
solid angle subtended by the detector at the source. The aim of research described in
this paper was to compare values of correction factors for point source 88Y obtained
using the software package GESPECOR (Monte-Carlo method) and experimentally
obtained values. Measurements were performed using a semiconductor HPGe
spectrometer, wherein point source was axially located on detector at nine different
distances. The system of equations was formed whereas net areas in full energy peaks
as well as in entire spectrum were used as input data. The system was solved and
correction factors for point source 88Y were determined. By comparing the obtained
values, it was found that correction factors obtained by these two methods have
discrepancy less than 3 %.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Одређивање корекционих фактора за коинцидентно сумирање у случају тачкастог извора Y88, Determination of coincidence summing correction factors for Y88 point source",
pages = "574-578",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8331"
}

Jevremović, A. M., Kandić, A., Đurašević, M. M., Vukanac, I., Šešlak, B. Ž., Milošević, Z.,& Puzović, J.. (2017). Одређивање корекционих фактора за коинцидентно сумирање у случају тачкастог извора Y88. in 29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 574-578.
https://hdl.handle.net/21.15107/rcub_vinar_8331

Jevremović AM, Kandić A, Đurašević MM, Vukanac I, Šešlak BŽ, Milošević Z, Puzović J. Одређивање корекционих фактора за коинцидентно сумирање у случају тачкастог извора Y88. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:574-578.
https://hdl.handle.net/21.15107/rcub_vinar_8331 .

Jevremović, Aleksandar M., Kandić, Aleksandar, Đurašević, Mirjana M., Vukanac, Ivana, Šešlak, Bojan Ž., Milošević, Zoran, Puzović, Jovan, "Одређивање корекционих фактора за коинцидентно сумирање у случају тачкастог извора Y88" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):574-578,
https://hdl.handle.net/21.15107/rcub_vinar_8331 .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Šešlak, Bojan Ž.
AU  - Milošević, Zoran
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/876
AB  - In this article, the X-ray and gamma-ray coincidence summing effect in Eu-152 is studied. Coincidence summing corrections and peak and total efficiencies of point and volume sources were determined using the direct matrices multiplication (DMM) method. The theoretically evaluated peak count rates were found to be in good agreement with the experimentally obtained values. Validation was performed by comparing the calculated efficiency curves and the corresponding correction factors with the results obtained using GESPECOR 4.2 software. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Coincidence summing corrections for point and volume Eu-152 sources
VL  - 107
SP  - 138
EP  - 144
DO  - 10.1016/j.apradiso.2015.10.015
ER  - 

@article{
author = "Novković, Dušan N. and Đurašević, Mirjana M. and Kandić, Aleksandar and Vukanac, Ivana and Šešlak, Bojan Ž. and Milošević, Zoran",
year = "2016",
abstract = "In this article, the X-ray and gamma-ray coincidence summing effect in Eu-152 is studied. Coincidence summing corrections and peak and total efficiencies of point and volume sources were determined using the direct matrices multiplication (DMM) method. The theoretically evaluated peak count rates were found to be in good agreement with the experimentally obtained values. Validation was performed by comparing the calculated efficiency curves and the corresponding correction factors with the results obtained using GESPECOR 4.2 software. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Coincidence summing corrections for point and volume Eu-152 sources",
volume = "107",
pages = "138-144",
doi = "10.1016/j.apradiso.2015.10.015"
}

Novković, D. N., Đurašević, M. M., Kandić, A., Vukanac, I., Šešlak, B. Ž.,& Milošević, Z.. (2016). Coincidence summing corrections for point and volume Eu-152 sources. in Applied Radiation and Isotopes, 107, 138-144.
https://doi.org/10.1016/j.apradiso.2015.10.015

Novković DN, Đurašević MM, Kandić A, Vukanac I, Šešlak BŽ, Milošević Z. Coincidence summing corrections for point and volume Eu-152 sources. in Applied Radiation and Isotopes. 2016;107:138-144.
doi:10.1016/j.apradiso.2015.10.015 .

Novković, Dušan N., Đurašević, Mirjana M., Kandić, Aleksandar, Vukanac, Ivana, Šešlak, Bojan Ž., Milošević, Zoran, "Coincidence summing corrections for point and volume Eu-152 sources" in Applied Radiation and Isotopes, 107 (2016):138-144,
https://doi.org/10.1016/j.apradiso.2015.10.015 . .

TY  - CONF
AU  - Kandić, Aleksandar
AU  - Šešlak, Bojan
AU  - Đurašević, Mirjana
AU  - Erić, Milić
AU  - Vukanac, Ivana
AU  - Marković, Zoran J.
AU  - Milošević, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12819
AB  - Ugalj, šljaka i pepeo iz termoelektrana sadrţe prirodne radionuklide čije se specifične aktivnosti mogu odrediti pomoću poluprovodničke gama spektrometrijske analize. Ove specifične aktivnosti su uglavnom niske, pa se stoga uzorci mere na malim rastojanjima od detektora, gde su izraţeni efekti koincidentnog sumiranja. U radu su prikazani korekcioni faktori za sumacione efekte za radionuklide iz uranovog (234mPa, 234Th, 226Ra, 214Bi i 214Pb) i torijumovog niza (228Ac, 224Ra, 212Pb, 212Bi i 208Tl) dobijeni primenom softvera EFFTRAN, kao i korigovane vrednosti specifičnih aktivnosti.
AB  - Coal, slag and ash from thermal power plants contain natural radionuclides whose specific activity could be determined by semiconductor gamma spectrometry. These specific activities are generally low, and therefore the samples should be measured at small distances from the detector, where coincidence summing effect are very pronounced. The corrections factors, obtained by using software EFFTRAN, for coincidence summing effects in the case of radionuclides from uranium ( 234mPa, 234Th, 226Ra, 214Bi and 214Pb) and thorium (228Ac, 224Ra, 212Pb, 212Bi and 208Tl) serie are presented in this paper, as well as corrected values for specific activities.
PB  - Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"
PB  - Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore
C3  - 28. симпозијум ДЗЗСЦГ : зборник радова
T1  - Primena softvera Efftran u analizi specifiĉnih aktivnosti uzoraka uglja, šljake i pepela iz termoelektrana
T1  - Application of software Efftran in radiological analysis of coal, slag and ash samples from thermal power plants
SP  - 464
EP  - 469
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12819
ER  - 

@conference{
author = "Kandić, Aleksandar and Šešlak, Bojan and Đurašević, Mirjana and Erić, Milić and Vukanac, Ivana and Marković, Zoran J. and Milošević, Zoran",
year = "2015",
abstract = "Ugalj, šljaka i pepeo iz termoelektrana sadrţe prirodne radionuklide čije se specifične aktivnosti mogu odrediti pomoću poluprovodničke gama spektrometrijske analize. Ove specifične aktivnosti su uglavnom niske, pa se stoga uzorci mere na malim rastojanjima od detektora, gde su izraţeni efekti koincidentnog sumiranja. U radu su prikazani korekcioni faktori za sumacione efekte za radionuklide iz uranovog (234mPa, 234Th, 226Ra, 214Bi i 214Pb) i torijumovog niza (228Ac, 224Ra, 212Pb, 212Bi i 208Tl) dobijeni primenom softvera EFFTRAN, kao i korigovane vrednosti specifičnih aktivnosti., Coal, slag and ash from thermal power plants contain natural radionuclides whose specific activity could be determined by semiconductor gamma spectrometry. These specific activities are generally low, and therefore the samples should be measured at small distances from the detector, where coincidence summing effect are very pronounced. The corrections factors, obtained by using software EFFTRAN, for coincidence summing effects in the case of radionuclides from uranium ( 234mPa, 234Th, 226Ra, 214Bi and 214Pb) and thorium (228Ac, 224Ra, 212Pb, 212Bi and 208Tl) serie are presented in this paper, as well as corrected values for specific activities.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Beograd : Društvo za zaštitu od zračenja Srbije i Crne Gore",
journal = "28. симпозијум ДЗЗСЦГ : зборник радова",
title = "Primena softvera Efftran u analizi specifiĉnih aktivnosti uzoraka uglja, šljake i pepela iz termoelektrana, Application of software Efftran in radiological analysis of coal, slag and ash samples from thermal power plants",
pages = "464-469",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12819"
}

Kandić, A., Šešlak, B., Đurašević, M., Erić, M., Vukanac, I., Marković, Z. J.,& Milošević, Z.. (2015). Primena softvera Efftran u analizi specifiĉnih aktivnosti uzoraka uglja, šljake i pepela iz termoelektrana. in 28. симпозијум ДЗЗСЦГ : зборник радова
Beograd : Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča"., 464-469.
https://hdl.handle.net/21.15107/rcub_vinar_12819

Kandić A, Šešlak B, Đurašević M, Erić M, Vukanac I, Marković ZJ, Milošević Z. Primena softvera Efftran u analizi specifiĉnih aktivnosti uzoraka uglja, šljake i pepela iz termoelektrana. in 28. симпозијум ДЗЗСЦГ : зборник радова. 2015;:464-469.
https://hdl.handle.net/21.15107/rcub_vinar_12819 .

Kandić, Aleksandar, Šešlak, Bojan, Đurašević, Mirjana, Erić, Milić, Vukanac, Ivana, Marković, Zoran J., Milošević, Zoran, "Primena softvera Efftran u analizi specifiĉnih aktivnosti uzoraka uglja, šljake i pepela iz termoelektrana" in 28. симпозијум ДЗЗСЦГ : зборник радова (2015):464-469,
https://hdl.handle.net/21.15107/rcub_vinar_12819 .

TY  - CONF
AU  - Kandić, Aleksandar
AU  - Šešlak, Bojan
AU  - Đurašević, Mirjana
AU  - Erić, Milić
AU  - Vukanac, Ivana
AU  - Milošević, Zoran
AU  - Marković, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12759
AB  - Ugalj,iporedsve intenzivnijeg razvoja i korišćenja obnovljivih izvora energije, ima i dalje značajnu ulogu u proizvodnji električne energije širom sveta. U Republici Srbiji prema godišnjem izveštaju “Elektroprivrede Srbije” za 2013. godinu u termoelektranama, čije jepogonsko gorivo lignit, proizvedeno je 26 537GWhod ukupno37 433 GWh električne energije[1]. Proizvodnja uglja, koji se koristi u termoelektranama “Elektroprivrede Srbije”, odvija se na površinskim kopovima rudarskih basena Kolubara (75 %) iKostolac(25 %) [2].
AB  - Coal as the fossil fuel contains naturally occurring radionuclides and belongs toNORM (Naturally Occurring Radioactive Materials). On the other hand, slag and fly-ash belong to TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are released into the environment an increase and/or redistribution of natural radionuclide content can occur. For the purposes of this study, six sets of samples (18 in total) of “Kolubara” coal, slag and fly-ash were collected during the periodical emission tests in May 2012th at steam boilers K3 and K4 of TPP “Kolubara”, Serbia. Coal, slag and fly-ash samples were prepared for analysis (milled, dried, sieved and weighed) by appropriate standard methods. Prepared samples were placedin 125 mL PVC cylindrical boxes, weighted and sealed with natural wax. Sealed samples were measured with a semiconductor HPGe spectrometer (37 % relative efficiency) after the radioactive equilibrium was reached. The obtained values of specific activity for coal (Ac), slag (As) and fly-ash (Af) do not differ significantly compared to the values available in the literature. Analysis of determined mutual ratiosAs/Ac andAf/Ac are consistent, taking into account uncertainties ofactivity concentrations, with values of approximately 2 and 4, forK3, and1.5 and 4, forK4. Discrepancies were notedonly for40K (bothsteam boilers) ofAs/Ac.Results indicate that further investigation with more samples should be undertaken, and also correlation between radiological and proximate analysis should be determined.
PB  - Zagreb : Croatian Radiation Protection Association
C3  - CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings
T1  - Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija
T1  - Determination of mutual ratios for specific activity in coal, slag and fly-ash samples from “Kolubara” power plant
SP  - 286
EP  - 291
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12759
ER  - 

@conference{
author = "Kandić, Aleksandar and Šešlak, Bojan and Đurašević, Mirjana and Erić, Milić and Vukanac, Ivana and Milošević, Zoran and Marković, Zoran",
year = "2015",
abstract = "Ugalj,iporedsve intenzivnijeg razvoja i korišćenja obnovljivih izvora energije, ima i dalje značajnu ulogu u proizvodnji električne energije širom sveta. U Republici Srbiji prema godišnjem izveštaju “Elektroprivrede Srbije” za 2013. godinu u termoelektranama, čije jepogonsko gorivo lignit, proizvedeno je 26 537GWhod ukupno37 433 GWh električne energije[1]. Proizvodnja uglja, koji se koristi u termoelektranama “Elektroprivrede Srbije”, odvija se na površinskim kopovima rudarskih basena Kolubara (75 %) iKostolac(25 %) [2]., Coal as the fossil fuel contains naturally occurring radionuclides and belongs toNORM (Naturally Occurring Radioactive Materials). On the other hand, slag and fly-ash belong to TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are released into the environment an increase and/or redistribution of natural radionuclide content can occur. For the purposes of this study, six sets of samples (18 in total) of “Kolubara” coal, slag and fly-ash were collected during the periodical emission tests in May 2012th at steam boilers K3 and K4 of TPP “Kolubara”, Serbia. Coal, slag and fly-ash samples were prepared for analysis (milled, dried, sieved and weighed) by appropriate standard methods. Prepared samples were placedin 125 mL PVC cylindrical boxes, weighted and sealed with natural wax. Sealed samples were measured with a semiconductor HPGe spectrometer (37 % relative efficiency) after the radioactive equilibrium was reached. The obtained values of specific activity for coal (Ac), slag (As) and fly-ash (Af) do not differ significantly compared to the values available in the literature. Analysis of determined mutual ratiosAs/Ac andAf/Ac are consistent, taking into account uncertainties ofactivity concentrations, with values of approximately 2 and 4, forK3, and1.5 and 4, forK4. Discrepancies were notedonly for40K (bothsteam boilers) ofAs/Ac.Results indicate that further investigation with more samples should be undertaken, and also correlation between radiological and proximate analysis should be determined.",
publisher = "Zagreb : Croatian Radiation Protection Association",
journal = "CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings",
title = "Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija, Determination of mutual ratios for specific activity in coal, slag and fly-ash samples from “Kolubara” power plant",
pages = "286-291",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12759"
}

Kandić, A., Šešlak, B., Đurašević, M., Erić, M., Vukanac, I., Milošević, Z.,& Marković, Z.. (2015). Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija. in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings
Zagreb : Croatian Radiation Protection Association., 286-291.
https://hdl.handle.net/21.15107/rcub_vinar_12759

Kandić A, Šešlak B, Đurašević M, Erić M, Vukanac I, Milošević Z, Marković Z. Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija. in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings. 2015;:286-291.
https://hdl.handle.net/21.15107/rcub_vinar_12759 .

Kandić, Aleksandar, Šešlak, Bojan, Đurašević, Mirjana, Erić, Milić, Vukanac, Ivana, Milošević, Zoran, Marković, Zoran, "Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija" in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings (2015):286-291,
https://hdl.handle.net/21.15107/rcub_vinar_12759 .

TY  - CONF
AU  - Šešlak, Bojan
AU  - Đurašević, Mirjana
AU  - Erić, Milić
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Marković, Zoran
AU  - Milošević, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12817
PB  - Niš : University of Niš, Faculty of Mechanical Engineering in Niš
C3  - SIMTERM : 17th Symposium on Thermal Science and Engineering of Serbia : “Energy – Ecology – Efficiency” : Proceedigns
T1  - Natural Radioactivity in Coal, Slag, and Fly-ash Samples from “Nikola Tesla” Power Plant – Risk Assessment
SP  - 542
EP  - 548
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12817
ER  - 

@conference{
author = "Šešlak, Bojan and Đurašević, Mirjana and Erić, Milić and Kandić, Aleksandar and Vukanac, Ivana and Marković, Zoran and Milošević, Zoran",
year = "2015",
publisher = "Niš : University of Niš, Faculty of Mechanical Engineering in Niš",
journal = "SIMTERM : 17th Symposium on Thermal Science and Engineering of Serbia : “Energy – Ecology – Efficiency” : Proceedigns",
title = "Natural Radioactivity in Coal, Slag, and Fly-ash Samples from “Nikola Tesla” Power Plant – Risk Assessment",
pages = "542-548",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12817"
}

Šešlak, B., Đurašević, M., Erić, M., Kandić, A., Vukanac, I., Marković, Z.,& Milošević, Z.. (2015). Natural Radioactivity in Coal, Slag, and Fly-ash Samples from “Nikola Tesla” Power Plant – Risk Assessment. in SIMTERM : 17th Symposium on Thermal Science and Engineering of Serbia : “Energy – Ecology – Efficiency” : Proceedigns
Niš : University of Niš, Faculty of Mechanical Engineering in Niš., 542-548.
https://hdl.handle.net/21.15107/rcub_vinar_12817

Šešlak B, Đurašević M, Erić M, Kandić A, Vukanac I, Marković Z, Milošević Z. Natural Radioactivity in Coal, Slag, and Fly-ash Samples from “Nikola Tesla” Power Plant – Risk Assessment. in SIMTERM : 17th Symposium on Thermal Science and Engineering of Serbia : “Energy – Ecology – Efficiency” : Proceedigns. 2015;:542-548.
https://hdl.handle.net/21.15107/rcub_vinar_12817 .

Šešlak, Bojan, Đurašević, Mirjana, Erić, Milić, Kandić, Aleksandar, Vukanac, Ivana, Marković, Zoran, Milošević, Zoran, "Natural Radioactivity in Coal, Slag, and Fly-ash Samples from “Nikola Tesla” Power Plant – Risk Assessment" in SIMTERM : 17th Symposium on Thermal Science and Engineering of Serbia : “Energy – Ecology – Efficiency” : Proceedigns (2015):542-548,
https://hdl.handle.net/21.15107/rcub_vinar_12817 .

TY  - CONF
AU  - Kandić, Aleksandar
AU  - Šešlak, Bojan
AU  - Đurašević, Mirjana
AU  - Vukanac, Ivana
AU  - Erić, Milić
AU  - Milošević, Z.
AU  - Marković, Zoran
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12792
AB  - Ugalj predstavlja glavni izvor energije u Srbiji. Jedan od problema koji prati proizvodnju
energije iz uglja je problem tzv. “energetskog otpada”, kao što su leteći pepeo i šljaka, koji
predstavljaju nesagorivi i nesagoreli ostatak pri sagorevanju uglja. Leteći pepeo i šljaka
predstavljaju TENORM (Technically Enhanced Naturally Occurring Radioactive Material), a u
slučaju kada se odlažu u životnu sredinu mogu dovesti do uvećanja i/ili promene raspodele sadržaja
prirodnih radionuklida. Da bi se odredio eventualni uticaj “energetskog otpada” na životnu sredinu
analizirani su uzorci uglja, pepela i šljake iz termoelektrana “Nikola Tesla” i “Kolubara”.
U radu su prikazani rezultati koncentracije prirodnih radionuklida (uranovog i torijumovog niza,
kao i 40K) u uzorcima uglja, kao i šljake i pepela nastalih sagorevanjem uglja. Zatopljeni uzorci su
mereni nakon uspostavljanja radioaktivne ravnoteže na poluprovodničkom HPGe spektrometru
(37% relativne efikasnosti). Spektri uzoraka su snimljeni i analizirani pomoću programskog paketa
GENIE 2K, uz dodatnu analizu korišćenjem programa ANGES.
Dobijene vrednosti specifičnih aktivnosti ne odstupaju značajno u odnosu na vrednosti dostupne u
literaturi. Svi dobijeni rezultati su dodatno statistički obrađeni u cilju određivanje mogućih
korelacija.
AB  - Coal is the main energy source in Serbia. One of the problems associated with the
production of energy from coal is the so-called “energy waste”, such as fly-ash and slag (bottomash), which are incombustible and unburt residue from combustion of coal. Fly-ash and slag are
TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are
released into the environment an increase and/or redistribution of natural radionuclide content can
occur. To determine the potential impact of “energy waste” on the environment, samples of coal,
fly-ash, and slag from thermal power plant “Nikola Tesla” and “Kolubara” were analyzed.
The measured concentrations of natural radionuclides (uranium and thorium series and 40K) in
samples of coal as well as in slag and fly-ash produced by combustion of coal are presented in this
paper. Sealed samples were measured with a semiconductor HPGe spectrometer (37% relative
efficiency) after the radioactive equilibrium was reached. Spectra were recorded and analyzed using
software package GENIE 2K, with additional analysis performed by ANGES software.
The obtained values of specific activity do not differ significantly compared to the values available
in the literature. All the results were further statistically analyzed in order to determine the possible
correlation.
PB  - Belgrade : Society of Thermal Engineers of Serbia
C3  - International Conference Power Plants 2014 : Proceedings
T1  - Radiološka analiza uglja, šljake i letećeg pepela iz termoelektrana „Nikola Tesla“ i „Kolubara“
T1  - Radiological analysis of coal, slag and fly ash from „Nikola Tesla“ and „Kolubara“ power plants
SP  - 788
EP  - 795
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12792
ER  - 

@conference{
author = "Kandić, Aleksandar and Šešlak, Bojan and Đurašević, Mirjana and Vukanac, Ivana and Erić, Milić and Milošević, Z. and Marković, Zoran",
year = "2014",
abstract = "Ugalj predstavlja glavni izvor energije u Srbiji. Jedan od problema koji prati proizvodnju
energije iz uglja je problem tzv. “energetskog otpada”, kao što su leteći pepeo i šljaka, koji
predstavljaju nesagorivi i nesagoreli ostatak pri sagorevanju uglja. Leteći pepeo i šljaka
predstavljaju TENORM (Technically Enhanced Naturally Occurring Radioactive Material), a u
slučaju kada se odlažu u životnu sredinu mogu dovesti do uvećanja i/ili promene raspodele sadržaja
prirodnih radionuklida. Da bi se odredio eventualni uticaj “energetskog otpada” na životnu sredinu
analizirani su uzorci uglja, pepela i šljake iz termoelektrana “Nikola Tesla” i “Kolubara”.
U radu su prikazani rezultati koncentracije prirodnih radionuklida (uranovog i torijumovog niza,
kao i 40K) u uzorcima uglja, kao i šljake i pepela nastalih sagorevanjem uglja. Zatopljeni uzorci su
mereni nakon uspostavljanja radioaktivne ravnoteže na poluprovodničkom HPGe spektrometru
(37% relativne efikasnosti). Spektri uzoraka su snimljeni i analizirani pomoću programskog paketa
GENIE 2K, uz dodatnu analizu korišćenjem programa ANGES.
Dobijene vrednosti specifičnih aktivnosti ne odstupaju značajno u odnosu na vrednosti dostupne u
literaturi. Svi dobijeni rezultati su dodatno statistički obrađeni u cilju određivanje mogućih
korelacija., Coal is the main energy source in Serbia. One of the problems associated with the
production of energy from coal is the so-called “energy waste”, such as fly-ash and slag (bottomash), which are incombustible and unburt residue from combustion of coal. Fly-ash and slag are
TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are
released into the environment an increase and/or redistribution of natural radionuclide content can
occur. To determine the potential impact of “energy waste” on the environment, samples of coal,
fly-ash, and slag from thermal power plant “Nikola Tesla” and “Kolubara” were analyzed.
The measured concentrations of natural radionuclides (uranium and thorium series and 40K) in
samples of coal as well as in slag and fly-ash produced by combustion of coal are presented in this
paper. Sealed samples were measured with a semiconductor HPGe spectrometer (37% relative
efficiency) after the radioactive equilibrium was reached. Spectra were recorded and analyzed using
software package GENIE 2K, with additional analysis performed by ANGES software.
The obtained values of specific activity do not differ significantly compared to the values available
in the literature. All the results were further statistically analyzed in order to determine the possible
correlation.",
publisher = "Belgrade : Society of Thermal Engineers of Serbia",
journal = "International Conference Power Plants 2014 : Proceedings",
title = "Radiološka analiza uglja, šljake i letećeg pepela iz termoelektrana „Nikola Tesla“ i „Kolubara“, Radiological analysis of coal, slag and fly ash from „Nikola Tesla“ and „Kolubara“ power plants",
pages = "788-795",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12792"
}

Kandić, A., Šešlak, B., Đurašević, M., Vukanac, I., Erić, M., Milošević, Z.,& Marković, Z.. (2014). Radiološka analiza uglja, šljake i letećeg pepela iz termoelektrana „Nikola Tesla“ i „Kolubara“. in International Conference Power Plants 2014 : Proceedings
Belgrade : Society of Thermal Engineers of Serbia., 788-795.
https://hdl.handle.net/21.15107/rcub_vinar_12792

Kandić A, Šešlak B, Đurašević M, Vukanac I, Erić M, Milošević Z, Marković Z. Radiološka analiza uglja, šljake i letećeg pepela iz termoelektrana „Nikola Tesla“ i „Kolubara“. in International Conference Power Plants 2014 : Proceedings. 2014;:788-795.
https://hdl.handle.net/21.15107/rcub_vinar_12792 .

Kandić, Aleksandar, Šešlak, Bojan, Đurašević, Mirjana, Vukanac, Ivana, Erić, Milić, Milošević, Z., Marković, Zoran, "Radiološka analiza uglja, šljake i letećeg pepela iz termoelektrana „Nikola Tesla“ i „Kolubara“" in International Conference Power Plants 2014 : Proceedings (2014):788-795,
https://hdl.handle.net/21.15107/rcub_vinar_12792 .

TY  - JOUR
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Stefanović, Predrag Lj.
AU  - Vukanac, Ivana
AU  - Šešlak, Bojan Ž.
AU  - Milošević, Zoran
AU  - Markovic, T.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5975
AB  - Coal as fossil fuel mainly contains naturally occurring radionuclides from the uranium and thorium series and K-40. Use of coal, primarily in industry, as a result has dispersion of radioactive material from coal in and through air and water. The aim of this study was to determine the activity concentrations of natural radionuclides in coal samples from open pit mines Kolubara and to evaluate its effect on population health. The results showed that all measured and calculated values were below the limits recommended in international legislation. (c) 2013 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment
VL  - 87
IS  - SI
SP  - 73
EP  - 76
DO  - 10.1016/j.apradiso.2013.11.096
ER  - 

@article{
author = "Đurašević, Mirjana M. and Kandić, Aleksandar and Stefanović, Predrag Lj. and Vukanac, Ivana and Šešlak, Bojan Ž. and Milošević, Zoran and Markovic, T.",
year = "2014",
abstract = "Coal as fossil fuel mainly contains naturally occurring radionuclides from the uranium and thorium series and K-40. Use of coal, primarily in industry, as a result has dispersion of radioactive material from coal in and through air and water. The aim of this study was to determine the activity concentrations of natural radionuclides in coal samples from open pit mines Kolubara and to evaluate its effect on population health. The results showed that all measured and calculated values were below the limits recommended in international legislation. (c) 2013 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment",
volume = "87",
number = "SI",
pages = "73-76",
doi = "10.1016/j.apradiso.2013.11.096"
}

Đurašević, M. M., Kandić, A., Stefanović, P. Lj., Vukanac, I., Šešlak, B. Ž., Milošević, Z.,& Markovic, T.. (2014). Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment. in Applied Radiation and Isotopes, 87(SI), 73-76.
https://doi.org/10.1016/j.apradiso.2013.11.096

Đurašević MM, Kandić A, Stefanović PL, Vukanac I, Šešlak BŽ, Milošević Z, Markovic T. Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment. in Applied Radiation and Isotopes. 2014;87(SI):73-76.
doi:10.1016/j.apradiso.2013.11.096 .

Đurašević, Mirjana M., Kandić, Aleksandar, Stefanović, Predrag Lj., Vukanac, Ivana, Šešlak, Bojan Ž., Milošević, Zoran, Markovic, T., "Natural radioactivity in lignite samples from open pit mines Kolubara, Serbia - risk assessment" in Applied Radiation and Isotopes, 87, no. SI (2014):73-76,
https://doi.org/10.1016/j.apradiso.2013.11.096 . .

TY  - JOUR
AU  - Nenadović, Snežana S.
AU  - Kljajević, Ljiljana M.
AU  - Šešlak, Bojan Ž.
AU  - Obradović, Nina
AU  - Vukanac, Ivana
AU  - Pavlović, Vladimir B.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5451
AB  - The aim of this study was to investigate the Cs+ ions sorption on natural minerals clinoptilolite. The analysis of clinoptilolite and clinoptilolite with adsorbed Cs+ ion was conducted by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and gamma spectrometry. The specific activity of naturally occurring radionuclides in clinoptilolite was determined by gamma spectrometry by using the HPGe semiconductor detector. Obtained activity concentrations ranged from 49 Bq/kg to 810 Bq/kg for K-40, 5.7 Bq/kg to 10 Bq/kg for U-238, 5.8 Bq/kg to 70 Bq/kg for Th-232(Ac-228), and the presence of artificial radionuclides was not detected (Cs-137 LT 0.02 Bq/kg). The study of the thermal decomposition of raw clinoptilolite and Cs adsorbed clinoptilolite by differential thermal analysis is presented in this paper. The activation energy of the reaction phase transformation of raw clinoptilolite is 156.7 kJ/mol, while Cs adsorbed clinoptilolite is 121.7 kJ/mol. The lower value of activation energy reaction of the phase transformation Cs adsorbed clinoptilolite indicates that Cs which is adsorbed destabilizes the crystal structure of clinoptilolite and thus facilitates the transition to the amorphous state.
T2  - Nuclear technology and radiation protection
T1  - Cesium Removal from Aqueous Solution By Natural Mineral Clinoptilolite
VL  - 29
IS  - 2
SP  - 135
EP  - 141
DO  - 10.2298/NTRP1402135N
ER  - 

@article{
author = "Nenadović, Snežana S. and Kljajević, Ljiljana M. and Šešlak, Bojan Ž. and Obradović, Nina and Vukanac, Ivana and Pavlović, Vladimir B.",
year = "2014",
abstract = "The aim of this study was to investigate the Cs+ ions sorption on natural minerals clinoptilolite. The analysis of clinoptilolite and clinoptilolite with adsorbed Cs+ ion was conducted by X-ray diffraction, scanning electron microscopy, X-ray fluorescence, and gamma spectrometry. The specific activity of naturally occurring radionuclides in clinoptilolite was determined by gamma spectrometry by using the HPGe semiconductor detector. Obtained activity concentrations ranged from 49 Bq/kg to 810 Bq/kg for K-40, 5.7 Bq/kg to 10 Bq/kg for U-238, 5.8 Bq/kg to 70 Bq/kg for Th-232(Ac-228), and the presence of artificial radionuclides was not detected (Cs-137 LT 0.02 Bq/kg). The study of the thermal decomposition of raw clinoptilolite and Cs adsorbed clinoptilolite by differential thermal analysis is presented in this paper. The activation energy of the reaction phase transformation of raw clinoptilolite is 156.7 kJ/mol, while Cs adsorbed clinoptilolite is 121.7 kJ/mol. The lower value of activation energy reaction of the phase transformation Cs adsorbed clinoptilolite indicates that Cs which is adsorbed destabilizes the crystal structure of clinoptilolite and thus facilitates the transition to the amorphous state.",
journal = "Nuclear technology and radiation protection",
title = "Cesium Removal from Aqueous Solution By Natural Mineral Clinoptilolite",
volume = "29",
number = "2",
pages = "135-141",
doi = "10.2298/NTRP1402135N"
}

Nenadović, S. S., Kljajević, L. M., Šešlak, B. Ž., Obradović, N., Vukanac, I.,& Pavlović, V. B.. (2014). Cesium Removal from Aqueous Solution By Natural Mineral Clinoptilolite. in Nuclear technology and radiation protection, 29(2), 135-141.
https://doi.org/10.2298/NTRP1402135N

Nenadović SS, Kljajević LM, Šešlak BŽ, Obradović N, Vukanac I, Pavlović VB. Cesium Removal from Aqueous Solution By Natural Mineral Clinoptilolite. in Nuclear technology and radiation protection. 2014;29(2):135-141.
doi:10.2298/NTRP1402135N .

Nenadović, Snežana S., Kljajević, Ljiljana M., Šešlak, Bojan Ž., Obradović, Nina, Vukanac, Ivana, Pavlović, Vladimir B., "Cesium Removal from Aqueous Solution By Natural Mineral Clinoptilolite" in Nuclear technology and radiation protection, 29, no. 2 (2014):135-141,
https://doi.org/10.2298/NTRP1402135N . .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana
AU  - Šešlak, Bojan
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12352
AB  - Artificial radionuclides are product of different human activities and their presence in the environment is negative side effect of civilization progress. They have been spread in the environment by events such as nuclear weapon tests, nuclear accidents and by deliberate and negligent discharge of radioactive waste from nuclear and other installation. Once released in to the nature, the artificial radionuclides start to circle in the same manner as naturally occurring ones, and finally they fall out from air and water onto the ground and build into the foodstuff and drinking water resulting in radiation doses to human beings. The short overview of presence of artificial radioactivity in human environment and its impact on human life is presented in this paper.
T2  - Journal Human Research in Rehabilitation
T1  - Human exposure to the artificial radionuclides in environment
VL  - 2
IS  - 2
SP  - 15
EP  - 19
DO  - 10.21554/hrr.091202
ER  - 

@article{
author = "Vukanac, Ivana and Kandić, Aleksandar and Đurašević, Mirjana and Šešlak, Bojan",
year = "2012",
abstract = "Artificial radionuclides are product of different human activities and their presence in the environment is negative side effect of civilization progress. They have been spread in the environment by events such as nuclear weapon tests, nuclear accidents and by deliberate and negligent discharge of radioactive waste from nuclear and other installation. Once released in to the nature, the artificial radionuclides start to circle in the same manner as naturally occurring ones, and finally they fall out from air and water onto the ground and build into the foodstuff and drinking water resulting in radiation doses to human beings. The short overview of presence of artificial radioactivity in human environment and its impact on human life is presented in this paper.",
journal = "Journal Human Research in Rehabilitation",
title = "Human exposure to the artificial radionuclides in environment",
volume = "2",
number = "2",
pages = "15-19",
doi = "10.21554/hrr.091202"
}

Vukanac, I., Kandić, A., Đurašević, M.,& Šešlak, B.. (2012). Human exposure to the artificial radionuclides in environment. in Journal Human Research in Rehabilitation, 2(2), 15-19.
https://doi.org/10.21554/hrr.091202

Vukanac I, Kandić A, Đurašević M, Šešlak B. Human exposure to the artificial radionuclides in environment. in Journal Human Research in Rehabilitation. 2012;2(2):15-19.
doi:10.21554/hrr.091202 .

Vukanac, Ivana, Kandić, Aleksandar, Đurašević, Mirjana, Šešlak, Bojan, "Human exposure to the artificial radionuclides in environment" in Journal Human Research in Rehabilitation, 2, no. 2 (2012):15-19,
https://doi.org/10.21554/hrr.091202 . .

TY  - JOUR
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Novković, Dušan N.
AU  - Šešlak, Bojan Ž.
AU  - Milošević, Zoran
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6969
AB  - In order to assure Quality Control in accordance with ISO/IEC 17025, it was important, from metrological point of view, to examine the long-term stability of calibration standards previously prepared. Comprehensive reconsideration on efficiency curves with respect to the ageing of calibration standards is presented in this paper. The calibration standards were re-used after a period of 5 years and analysis of the results showed discrepancies in efficiency values. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - On the long-term stability of calibration standards in different matrices
VL  - 70
IS  - 9
SP  - 1860
EP  - 1862
DO  - 10.1016/j.apradiso.2012.02.025
ER  - 

@article{
author = "Kandić, Aleksandar and Vukanac, Ivana and Đurašević, Mirjana M. and Novković, Dušan N. and Šešlak, Bojan Ž. and Milošević, Zoran",
year = "2012",
abstract = "In order to assure Quality Control in accordance with ISO/IEC 17025, it was important, from metrological point of view, to examine the long-term stability of calibration standards previously prepared. Comprehensive reconsideration on efficiency curves with respect to the ageing of calibration standards is presented in this paper. The calibration standards were re-used after a period of 5 years and analysis of the results showed discrepancies in efficiency values. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "On the long-term stability of calibration standards in different matrices",
volume = "70",
number = "9",
pages = "1860-1862",
doi = "10.1016/j.apradiso.2012.02.025"
}

Kandić, A., Vukanac, I., Đurašević, M. M., Novković, D. N., Šešlak, B. Ž.,& Milošević, Z.. (2012). On the long-term stability of calibration standards in different matrices. in Applied Radiation and Isotopes, 70(9), 1860-1862.
https://doi.org/10.1016/j.apradiso.2012.02.025

Kandić A, Vukanac I, Đurašević MM, Novković DN, Šešlak BŽ, Milošević Z. On the long-term stability of calibration standards in different matrices. in Applied Radiation and Isotopes. 2012;70(9):1860-1862.
doi:10.1016/j.apradiso.2012.02.025 .

Kandić, Aleksandar, Vukanac, Ivana, Đurašević, Mirjana M., Novković, Dušan N., Šešlak, Bojan Ž., Milošević, Zoran, "On the long-term stability of calibration standards in different matrices" in Applied Radiation and Isotopes, 70, no. 9 (2012):1860-1862,
https://doi.org/10.1016/j.apradiso.2012.02.025 . .