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  - JOUR
AU  - Novković, Dušan N.
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Milošević, Zoran
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6971
AB  - The direct measurement of the activities of Co-57 sources by application of the sum-peak method recently developed by Novkovic et al., is described in this paper. The comprehensive assessment of the uncertainty budget of the activity of the measured sources has been analyzed. The presented method is successfully tested using an HPGe spectrometer with efficiencies of 50%. The accuracy of this method is confirmed to be comparable with the commonly used methods of the activity measurement of Co-57. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - The direct measurement of Co-57 activity by the sum-peak method
VL  - 70
IS  - 9
SP  - 2154
EP  - 2156
DO  - 10.1016/j.apradiso.2012.02.088
ER  - 

@article{
author = "Novković, Dušan N. and Kandić, Aleksandar and Vukanac, Ivana and Đurašević, Mirjana M. and Milošević, Zoran",
year = "2012",
abstract = "The direct measurement of the activities of Co-57 sources by application of the sum-peak method recently developed by Novkovic et al., is described in this paper. The comprehensive assessment of the uncertainty budget of the activity of the measured sources has been analyzed. The presented method is successfully tested using an HPGe spectrometer with efficiencies of 50%. The accuracy of this method is confirmed to be comparable with the commonly used methods of the activity measurement of Co-57. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "The direct measurement of Co-57 activity by the sum-peak method",
volume = "70",
number = "9",
pages = "2154-2156",
doi = "10.1016/j.apradiso.2012.02.088"
}

Novković, D. N., Kandić, A., Vukanac, I., Đurašević, M. M.,& Milošević, Z.. (2012). The direct measurement of Co-57 activity by the sum-peak method. in Applied Radiation and Isotopes, 70(9), 2154-2156.
https://doi.org/10.1016/j.apradiso.2012.02.088

Novković DN, Kandić A, Vukanac I, Đurašević MM, Milošević Z. The direct measurement of Co-57 activity by the sum-peak method. in Applied Radiation and Isotopes. 2012;70(9):2154-2156.
doi:10.1016/j.apradiso.2012.02.088 .

Novković, Dušan N., Kandić, Aleksandar, Vukanac, Ivana, Đurašević, Mirjana M., Milošević, Zoran, "The direct measurement of Co-57 activity by the sum-peak method" in Applied Radiation and Isotopes, 70, no. 9 (2012):2154-2156,
https://doi.org/10.1016/j.apradiso.2012.02.088 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Milošević, Zoran
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4734
AB  - A study of coincidence summing of X- and gamma rays of Se-75 has been presented in this paper. The computation of the Se-75 spectra was performed by application of the previously published theory by Novkovi et al. The method enables the treatment of all possible single and sum peaks of Se-75. The calculation gave the 419 decay path outcomes, resulting in 84 peak count rate equations and also the total count rate equation. By HPGe spectrometers with 15% and 18% relative efficiency, 20 and 30 peaks were recorded, respectively. Some simplification of the decay scheme was introduced and existing metastable level had to be treated separately. Nevertheless, the experimental values of the peak count rates were in good agreement with the theoretical evaluation. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Coincidence summing of X- and gamma rays of Se-75
VL  - 70
IS  - 3
SP  - 520
EP  - 527
DO  - 10.1016/j.apradiso.2011.10.001
ER  - 

@article{
author = "Novković, Dušan N. and Vukanac, Ivana and Kandić, Aleksandar and Đurašević, Mirjana M. and Milošević, Zoran",
year = "2012",
abstract = "A study of coincidence summing of X- and gamma rays of Se-75 has been presented in this paper. The computation of the Se-75 spectra was performed by application of the previously published theory by Novkovi et al. The method enables the treatment of all possible single and sum peaks of Se-75. The calculation gave the 419 decay path outcomes, resulting in 84 peak count rate equations and also the total count rate equation. By HPGe spectrometers with 15% and 18% relative efficiency, 20 and 30 peaks were recorded, respectively. Some simplification of the decay scheme was introduced and existing metastable level had to be treated separately. Nevertheless, the experimental values of the peak count rates were in good agreement with the theoretical evaluation. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Coincidence summing of X- and gamma rays of Se-75",
volume = "70",
number = "3",
pages = "520-527",
doi = "10.1016/j.apradiso.2011.10.001"
}

Novković, D. N., Vukanac, I., Kandić, A., Đurašević, M. M.,& Milošević, Z.. (2012). Coincidence summing of X- and gamma rays of Se-75. in Applied Radiation and Isotopes, 70(3), 520-527.
https://doi.org/10.1016/j.apradiso.2011.10.001

Novković DN, Vukanac I, Kandić A, Đurašević MM, Milošević Z. Coincidence summing of X- and gamma rays of Se-75. in Applied Radiation and Isotopes. 2012;70(3):520-527.
doi:10.1016/j.apradiso.2011.10.001 .

Novković, Dušan N., Vukanac, Ivana, Kandić, Aleksandar, Đurašević, Mirjana M., Milošević, Zoran, "Coincidence summing of X- and gamma rays of Se-75" in Applied Radiation and Isotopes, 70, no. 3 (2012):520-527,
https://doi.org/10.1016/j.apradiso.2011.10.001 . .

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 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Đurašević, Mirjana M.
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Milošević, Zoran
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4297
AB  - The direct measurement of Ba-133 source activity by the application of the theoretical count rate equations has been recently developed by Novkovic et al. The analytical and Monte Carlo calculation of activity measurement uncertainties were described in previously published papers for the case of one recorded spectra. The procedure of uncertainty calculation for a sequence of successively recorded spectra, enabling the determination of the correlation between peak count rates, is presented in this paper. The uncertainty of activity obtained by the described method is caused by the uncertainty of the experimentally obtained input data and uncertainties of the used nuclear decay data.
T2  - Nuclear technology and radiation protection
T1  - The Direct Activity Measurement of Ba-133 By Using HPGe Spectrometer
VL  - 26
IS  - 1
SP  - 64
EP  - 68
DO  - 10.2298/NTRP1101064N
ER  - 

@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo and Đurašević, Mirjana M. and Vukanac, Ivana and Kandić, Aleksandar and Milošević, Zoran",
year = "2011",
abstract = "The direct measurement of Ba-133 source activity by the application of the theoretical count rate equations has been recently developed by Novkovic et al. The analytical and Monte Carlo calculation of activity measurement uncertainties were described in previously published papers for the case of one recorded spectra. The procedure of uncertainty calculation for a sequence of successively recorded spectra, enabling the determination of the correlation between peak count rates, is presented in this paper. The uncertainty of activity obtained by the described method is caused by the uncertainty of the experimentally obtained input data and uncertainties of the used nuclear decay data.",
journal = "Nuclear technology and radiation protection",
title = "The Direct Activity Measurement of Ba-133 By Using HPGe Spectrometer",
volume = "26",
number = "1",
pages = "64-68",
doi = "10.2298/NTRP1101064N"
}

Novković, D. N., Nađđerđ, L., Đurašević, M. M., Vukanac, I., Kandić, A.,& Milošević, Z.. (2011). The Direct Activity Measurement of Ba-133 By Using HPGe Spectrometer. in Nuclear technology and radiation protection, 26(1), 64-68.
https://doi.org/10.2298/NTRP1101064N

Novković DN, Nađđerđ L, Đurašević MM, Vukanac I, Kandić A, Milošević Z. The Direct Activity Measurement of Ba-133 By Using HPGe Spectrometer. in Nuclear technology and radiation protection. 2011;26(1):64-68.
doi:10.2298/NTRP1101064N .

Novković, Dušan N., Nađđerđ, Laslo, Đurašević, Mirjana M., Vukanac, Ivana, Kandić, Aleksandar, Milošević, Zoran, "The Direct Activity Measurement of Ba-133 By Using HPGe Spectrometer" in Nuclear technology and radiation protection, 26, no. 1 (2011):64-68,
https://doi.org/10.2298/NTRP1101064N . .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Novković, Dušan N.
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Milošević, Zoran
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6876
AB  - A simple and efficient method for determination of uranium content in surface soil samples contaminated with depleted uranium, by gamma ray spectrometry is presented. The content of natural uranium and depleted uranium, as well as the activity ratio (235)U/(238)U of depleted uranium, were determined in contaminated surface soil samples by application of this method (C) 2009 Elsevier Ltd All rights reserved
T2  - Applied Radiation and Isotopes
T1  - A simple method for determination of natural and depleted uranium in surface soil samples
VL  - 68
IS  - 7-8
SP  - 1433
EP  - 1434
DO  - 10.1016/j.apradiso.2009.11.056
ER  - 

@article{
author = "Vukanac, Ivana and Novković, Dušan N. and Kandić, Aleksandar and Đurašević, Mirjana M. and Milošević, Zoran",
year = "2010",
abstract = "A simple and efficient method for determination of uranium content in surface soil samples contaminated with depleted uranium, by gamma ray spectrometry is presented. The content of natural uranium and depleted uranium, as well as the activity ratio (235)U/(238)U of depleted uranium, were determined in contaminated surface soil samples by application of this method (C) 2009 Elsevier Ltd All rights reserved",
journal = "Applied Radiation and Isotopes",
title = "A simple method for determination of natural and depleted uranium in surface soil samples",
volume = "68",
number = "7-8",
pages = "1433-1434",
doi = "10.1016/j.apradiso.2009.11.056"
}

Vukanac, I., Novković, D. N., Kandić, A., Đurašević, M. M.,& Milošević, Z.. (2010). A simple method for determination of natural and depleted uranium in surface soil samples. in Applied Radiation and Isotopes, 68(7-8), 1433-1434.
https://doi.org/10.1016/j.apradiso.2009.11.056

Vukanac I, Novković DN, Kandić A, Đurašević MM, Milošević Z. A simple method for determination of natural and depleted uranium in surface soil samples. in Applied Radiation and Isotopes. 2010;68(7-8):1433-1434.
doi:10.1016/j.apradiso.2009.11.056 .

Vukanac, Ivana, Novković, Dušan N., Kandić, Aleksandar, Đurašević, Mirjana M., Milošević, Zoran, "A simple method for determination of natural and depleted uranium in surface soil samples" in Applied Radiation and Isotopes, 68, no. 7-8 (2010):1433-1434,
https://doi.org/10.1016/j.apradiso.2009.11.056 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Đurašević, Mirjana M.
AU  - Vukanac, Ivana
AU  - Kandić, Aleksandar
AU  - Milošević, Zoran
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3786
AB  - The subject is a direct measurement of the activities of Ba-133 sources by application of the theoretical count rate expressions recently developed by Novkovic et al. The total uncertainties of the activity of the measured sources, obtained in two manners, are described in this paper. The presented method is successfully tested using a germanium spectrometer with efficiencies of 50%. The accuracy of this method is proved to be comparable with the present methods of the activity measurement of Ba-133. (c) 2009 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - The direct measurement of Ba-133 activity by the sum-peak method
VL  - 608
IS  - 1
SP  - 116
EP  - 120
DO  - 10.1016/j.nima.2009.06.042
ER  - 

@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo and Đurašević, Mirjana M. and Vukanac, Ivana and Kandić, Aleksandar and Milošević, Zoran",
year = "2009",
abstract = "The subject is a direct measurement of the activities of Ba-133 sources by application of the theoretical count rate expressions recently developed by Novkovic et al. The total uncertainties of the activity of the measured sources, obtained in two manners, are described in this paper. The presented method is successfully tested using a germanium spectrometer with efficiencies of 50%. The accuracy of this method is proved to be comparable with the present methods of the activity measurement of Ba-133. (c) 2009 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "The direct measurement of Ba-133 activity by the sum-peak method",
volume = "608",
number = "1",
pages = "116-120",
doi = "10.1016/j.nima.2009.06.042"
}

Novković, D. N., Nađđerđ, L., Đurašević, M. M., Vukanac, I., Kandić, A.,& Milošević, Z.. (2009). The direct measurement of Ba-133 activity by the sum-peak method. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 608(1), 116-120.
https://doi.org/10.1016/j.nima.2009.06.042

Novković DN, Nađđerđ L, Đurašević MM, Vukanac I, Kandić A, Milošević Z. The direct measurement of Ba-133 activity by the sum-peak method. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2009;608(1):116-120.
doi:10.1016/j.nima.2009.06.042 .

Novković, Dušan N., Nađđerđ, Laslo, Đurašević, Mirjana M., Vukanac, Ivana, Kandić, Aleksandar, Milošević, Zoran, "The direct measurement of Ba-133 activity by the sum-peak method" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 608, no. 1 (2009):116-120,
https://doi.org/10.1016/j.nima.2009.06.042 . .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Milošević, Zoran
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6756
AB  - A review of the calibration procedures of the semiconductor HPGe spectrometer is presented in this paper. Calibration standards were prepared using the standardized radioactive solution of the common monoenergetic radionuclides mixture and standardized multigamma Eu-152 solution. The matrix materials were spiked using the activated carbon, and homogenized mechanically or by suspension in C2H5OH. Experimentally determined efficiency curves were compared with those obtained by Monte Carlo simulation. (C) 2008 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Experimental determination of the HPGe spectrometer efficiency curve
VL  - 66
IS  - 6-7
SP  - 792
EP  - 795
DO  - 10.1016/j.apradiso.2008.02.039
ER  - 

@article{
author = "Vukanac, Ivana and Đurašević, Mirjana M. and Kandić, Aleksandar and Novković, Dušan N. and Nađđerđ, Laslo and Milošević, Zoran",
year = "2008",
abstract = "A review of the calibration procedures of the semiconductor HPGe spectrometer is presented in this paper. Calibration standards were prepared using the standardized radioactive solution of the common monoenergetic radionuclides mixture and standardized multigamma Eu-152 solution. The matrix materials were spiked using the activated carbon, and homogenized mechanically or by suspension in C2H5OH. Experimentally determined efficiency curves were compared with those obtained by Monte Carlo simulation. (C) 2008 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Experimental determination of the HPGe spectrometer efficiency curve",
volume = "66",
number = "6-7",
pages = "792-795",
doi = "10.1016/j.apradiso.2008.02.039"
}

Vukanac, I., Đurašević, M. M., Kandić, A., Novković, D. N., Nađđerđ, L.,& Milošević, Z.. (2008). Experimental determination of the HPGe spectrometer efficiency curve. in Applied Radiation and Isotopes, 66(6-7), 792-795.
https://doi.org/10.1016/j.apradiso.2008.02.039

Vukanac I, Đurašević MM, Kandić A, Novković DN, Nađđerđ L, Milošević Z. Experimental determination of the HPGe spectrometer efficiency curve. in Applied Radiation and Isotopes. 2008;66(6-7):792-795.
doi:10.1016/j.apradiso.2008.02.039 .

Vukanac, Ivana, Đurašević, Mirjana M., Kandić, Aleksandar, Novković, Dušan N., Nađđerđ, Laslo, Milošević, Zoran, "Experimental determination of the HPGe spectrometer efficiency curve" in Applied Radiation and Isotopes, 66, no. 6-7 (2008):792-795,
https://doi.org/10.1016/j.apradiso.2008.02.039 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3543
AB  - The results of experimental testing of the digital multichannel analyzer which digitalizes the signal after a preamplifier are presented. The recordings of some of the characteristics of the spectrometer containing a digital MCA, such as full-peak efficiency, net-area ratio of the two peaks and the stability of the peak position, were carried out under different input counting rates, with different radioactive sources. The tested MCA has shown some excellent features, like the stability of the peak position over a long-term period and flexibility in the adjusting of optimum measurement conditions. However, the performed tests have also shown some serious and unexpected disadvantages of the digital MCA when it operates under certain circumstances, one of them having to do with the automatic tuning of live-time correction at low-input counting rates.
T2  - Nuclear technology and radiation protection
T1  - Experimental Testing of the Digital Multichannel Analyzer for Gamma Spectrometry Measurements
VL  - 23
IS  - 1
SP  - 43
EP  - 46
DO  - 10.2298/NTRP0801043N
ER  - 

@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo and Kandić, Aleksandar and Vukanac, Ivana and Đurašević, Mirjana M.",
year = "2008",
abstract = "The results of experimental testing of the digital multichannel analyzer which digitalizes the signal after a preamplifier are presented. The recordings of some of the characteristics of the spectrometer containing a digital MCA, such as full-peak efficiency, net-area ratio of the two peaks and the stability of the peak position, were carried out under different input counting rates, with different radioactive sources. The tested MCA has shown some excellent features, like the stability of the peak position over a long-term period and flexibility in the adjusting of optimum measurement conditions. However, the performed tests have also shown some serious and unexpected disadvantages of the digital MCA when it operates under certain circumstances, one of them having to do with the automatic tuning of live-time correction at low-input counting rates.",
journal = "Nuclear technology and radiation protection",
title = "Experimental Testing of the Digital Multichannel Analyzer for Gamma Spectrometry Measurements",
volume = "23",
number = "1",
pages = "43-46",
doi = "10.2298/NTRP0801043N"
}

Novković, D. N., Nađđerđ, L., Kandić, A., Vukanac, I.,& Đurašević, M. M.. (2008). Experimental Testing of the Digital Multichannel Analyzer for Gamma Spectrometry Measurements. in Nuclear technology and radiation protection, 23(1), 43-46.
https://doi.org/10.2298/NTRP0801043N

Novković DN, Nađđerđ L, Kandić A, Vukanac I, Đurašević MM. Experimental Testing of the Digital Multichannel Analyzer for Gamma Spectrometry Measurements. in Nuclear technology and radiation protection. 2008;23(1):43-46.
doi:10.2298/NTRP0801043N .

Novković, Dušan N., Nađđerđ, Laslo, Kandić, Aleksandar, Vukanac, Ivana, Đurašević, Mirjana M., "Experimental Testing of the Digital Multichannel Analyzer for Gamma Spectrometry Measurements" in Nuclear technology and radiation protection, 23, no. 1 (2008):43-46,
https://doi.org/10.2298/NTRP0801043N . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Kandić, Aleksandar
AU  - Đurašević, Mirjana M.
AU  - Vukanac, Ivana
AU  - Milošević, Zoran
AU  - Nađđerđ, Laslo
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3270
AB  - A new method for theoretical calculation of coincidence summing of X- and gamma rays for germanium spectrometers has been presented. The counting rate equations, derived by this method, enable to determinate peak efficiencies as well as the activity of the source. The root of the counting rate equations can be determined by commercial mathematical programs. The method was applied to the decay of Ce-139 and the derived relationships were compared with the Koruns and Martincics results obtained by matrix formalism. The method was also applied to the decay of Co-57 and the calculated results were confirmed by the experiment. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Coincidence summing of X- and gamma-rays in gamma-ray spectrometry
VL  - 578
IS  - 1
SP  - 207
EP  - 217
DO  - 10.1016/j.nima.2007.05.199
ER  - 

@article{
author = "Novković, Dušan N. and Kandić, Aleksandar and Đurašević, Mirjana M. and Vukanac, Ivana and Milošević, Zoran and Nađđerđ, Laslo",
year = "2007",
abstract = "A new method for theoretical calculation of coincidence summing of X- and gamma rays for germanium spectrometers has been presented. The counting rate equations, derived by this method, enable to determinate peak efficiencies as well as the activity of the source. The root of the counting rate equations can be determined by commercial mathematical programs. The method was applied to the decay of Ce-139 and the derived relationships were compared with the Koruns and Martincics results obtained by matrix formalism. The method was also applied to the decay of Co-57 and the calculated results were confirmed by the experiment. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Coincidence summing of X- and gamma-rays in gamma-ray spectrometry",
volume = "578",
number = "1",
pages = "207-217",
doi = "10.1016/j.nima.2007.05.199"
}

Novković, D. N., Kandić, A., Đurašević, M. M., Vukanac, I., Milošević, Z.,& Nađđerđ, L.. (2007). Coincidence summing of X- and gamma-rays in gamma-ray spectrometry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 578(1), 207-217.
https://doi.org/10.1016/j.nima.2007.05.199

Novković DN, Kandić A, Đurašević MM, Vukanac I, Milošević Z, Nađđerđ L. Coincidence summing of X- and gamma-rays in gamma-ray spectrometry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2007;578(1):207-217.
doi:10.1016/j.nima.2007.05.199 .

Novković, Dušan N., Kandić, Aleksandar, Đurašević, Mirjana M., Vukanac, Ivana, Milošević, Zoran, Nađđerđ, Laslo, "Coincidence summing of X- and gamma-rays in gamma-ray spectrometry" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 578, no. 1 (2007):207-217,
https://doi.org/10.1016/j.nima.2007.05.199 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Milošević, Zoran
AU  - Nađđerđ, Laslo
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3327
AB  - A study of the coincidence summing of X- and gamma-rays of Ba-133 has been presented. The detailed computation of the Ba-133 spectra was performed by application of the previously published theory by Novkovic et al. The theory is based on tracking all decay paths and their outcomes, i.e., deposited energies in the detector and probabilities for those events. The method enables to treat all possible single and sum peaks of Ba-133. The calculations gave the 1788 decay path outcomes, resulting in 167 peak count rates equations and also total count rate equation. More than 50 peaks were recorded by an HPGe spectrometer with 50% relative efficiency. The experimental values of the peak count rates were in good agreement with the theoretical evaluation. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Coincidence summing of X- and gamma rays of Ba-133
VL  - 582
IS  - 2
SP  - 592
EP  - 602
DO  - 10.1016/j.nima.2007.09.010
ER  - 

@article{
author = "Novković, Dušan N. and Đurašević, Mirjana M. and Kandić, Aleksandar and Vukanac, Ivana and Milošević, Zoran and Nađđerđ, Laslo",
year = "2007",
abstract = "A study of the coincidence summing of X- and gamma-rays of Ba-133 has been presented. The detailed computation of the Ba-133 spectra was performed by application of the previously published theory by Novkovic et al. The theory is based on tracking all decay paths and their outcomes, i.e., deposited energies in the detector and probabilities for those events. The method enables to treat all possible single and sum peaks of Ba-133. The calculations gave the 1788 decay path outcomes, resulting in 167 peak count rates equations and also total count rate equation. More than 50 peaks were recorded by an HPGe spectrometer with 50% relative efficiency. The experimental values of the peak count rates were in good agreement with the theoretical evaluation. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Coincidence summing of X- and gamma rays of Ba-133",
volume = "582",
number = "2",
pages = "592-602",
doi = "10.1016/j.nima.2007.09.010"
}

Novković, D. N., Đurašević, M. M., Kandić, A., Vukanac, I., Milošević, Z.,& Nađđerđ, L.. (2007). Coincidence summing of X- and gamma rays of Ba-133. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 582(2), 592-602.
https://doi.org/10.1016/j.nima.2007.09.010

Novković DN, Đurašević MM, Kandić A, Vukanac I, Milošević Z, Nađđerđ L. Coincidence summing of X- and gamma rays of Ba-133. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2007;582(2):592-602.
doi:10.1016/j.nima.2007.09.010 .

Novković, Dušan N., Đurašević, Mirjana M., Kandić, Aleksandar, Vukanac, Ivana, Milošević, Zoran, Nađđerđ, Laslo, "Coincidence summing of X- and gamma rays of Ba-133" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 582, no. 2 (2007):592-602,
https://doi.org/10.1016/j.nima.2007.09.010 . .

TY  - CONF
AU  - Vukanac, Ivana
AU  - Novković, Dušan
AU  - Đurašević, Mirjana
AU  - Obradović, Zorica
AU  - Kandić, Aleksandar
PY  - 2006
PY  - S54
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12799
AB  - The surface air samples collected in the first half of May 1986 at VinčaBelgrade site were prepared and measured at the end of the 1991 and beginning of the 1992. year. Activity concentrations of the 137Cs immediately after the Chernobyl accident were determined by means of gamma spectrometry, while the air activity concentration of 238Pu and 239,240Pu were determined by alpha spectrometry, after the plutonium radiochemical separation. The 236Pu was used as a tracer. The same samples were remeasured after 13 years, during the 2004. The surface air activity concentrations of 241Pu were estimated by a 241Am in-growth method. The built up activities of 236Pu progenies were determined from the recorded spectra and also calculated using the Bateman’s equations. The 241Am activity in the remeasured samples, obtained by complex spectral analysis was confirmed by gamma spectrometry. The 241Pu activity concentration in measured air samples ranged from 240 µBq/m3  to 7800 µBq/m3 . The average activity concentration ratio 241Pu/239,240Pu originated from Chernobyl accident was approximately 100.
C3  - Environmental sciences
T1  - Concentration Of The 241Pu In Air Samples From Chernobyl At Belgrade Site Estimated By a 241Am In Growth Method
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12799
ER  - 

@conference{
author = "Vukanac, Ivana and Novković, Dušan and Đurašević, Mirjana and Obradović, Zorica and Kandić, Aleksandar",
year = "2006, S54",
abstract = "The surface air samples collected in the first half of May 1986 at VinčaBelgrade site were prepared and measured at the end of the 1991 and beginning of the 1992. year. Activity concentrations of the 137Cs immediately after the Chernobyl accident were determined by means of gamma spectrometry, while the air activity concentration of 238Pu and 239,240Pu were determined by alpha spectrometry, after the plutonium radiochemical separation. The 236Pu was used as a tracer. The same samples were remeasured after 13 years, during the 2004. The surface air activity concentrations of 241Pu were estimated by a 241Am in-growth method. The built up activities of 236Pu progenies were determined from the recorded spectra and also calculated using the Bateman’s equations. The 241Am activity in the remeasured samples, obtained by complex spectral analysis was confirmed by gamma spectrometry. The 241Pu activity concentration in measured air samples ranged from 240 µBq/m3  to 7800 µBq/m3 . The average activity concentration ratio 241Pu/239,240Pu originated from Chernobyl accident was approximately 100.",
journal = "Environmental sciences",
title = "Concentration Of The 241Pu In Air Samples From Chernobyl At Belgrade Site Estimated By a 241Am In Growth Method",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12799"
}

Vukanac, I., Novković, D., Đurašević, M., Obradović, Z.,& Kandić, A.. (2006). Concentration Of The 241Pu In Air Samples From Chernobyl At Belgrade Site Estimated By a 241Am In Growth Method. in Environmental sciences.
https://hdl.handle.net/21.15107/rcub_vinar_12799

Vukanac I, Novković D, Đurašević M, Obradović Z, Kandić A. Concentration Of The 241Pu In Air Samples From Chernobyl At Belgrade Site Estimated By a 241Am In Growth Method. in Environmental sciences. 2006;.
https://hdl.handle.net/21.15107/rcub_vinar_12799 .

Vukanac, Ivana, Novković, Dušan, Đurašević, Mirjana, Obradović, Zorica, Kandić, Aleksandar, "Concentration Of The 241Pu In Air Samples From Chernobyl At Belgrade Site Estimated By a 241Am In Growth Method" in Environmental sciences (2006),
https://hdl.handle.net/21.15107/rcub_vinar_12799 .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Paligorić, D.
AU  - Novković, Dušan N.
AU  - Đurašević, Mirjana M.
AU  - Obradović, Z
AU  - Milošević, Zoran
AU  - Manic, S
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3013
AB  - The surface air activity concentration of Pu-241 for the period May 01-15, 1986, for a monitoring site in Vin a, Belgrade was retrospectively estimated. The results were obtained by re-measurement of plutonium fraction alpha-spectrometric sources, with 236 Pu as a tracer, used almost 13 years earlier for the determination of Pu-239,Pu-240 concentration in surface air immediately after the Chernobyl accident. The estimated Pu-241 concentration, based on the Am-241 in-growth method for air samples, ranged from 240 to 7800 mu Bq/m(3). The average activity ratio Pu-241/Pu-239.240 originating from the Chernobyl accident at Belgrade site was approximately 100 at the collection time. (c) 2006 Elsevier Ltd. All rights reserved.
T2  - Applied Radiation and Isotopes
T1  - Retrospective estimation of the concentration of Pu-241 in air sampled at a Belgrade site following the Chernobyl accident
VL  - 64
IS  - 6
SP  - 689
EP  - 692
DO  - 10.1016/j.apradiso.2005.12.014
ER  - 

@article{
author = "Vukanac, Ivana and Paligorić, D. and Novković, Dušan N. and Đurašević, Mirjana M. and Obradović, Z and Milošević, Zoran and Manic, S",
year = "2006",
abstract = "The surface air activity concentration of Pu-241 for the period May 01-15, 1986, for a monitoring site in Vin a, Belgrade was retrospectively estimated. The results were obtained by re-measurement of plutonium fraction alpha-spectrometric sources, with 236 Pu as a tracer, used almost 13 years earlier for the determination of Pu-239,Pu-240 concentration in surface air immediately after the Chernobyl accident. The estimated Pu-241 concentration, based on the Am-241 in-growth method for air samples, ranged from 240 to 7800 mu Bq/m(3). The average activity ratio Pu-241/Pu-239.240 originating from the Chernobyl accident at Belgrade site was approximately 100 at the collection time. (c) 2006 Elsevier Ltd. All rights reserved.",
journal = "Applied Radiation and Isotopes",
title = "Retrospective estimation of the concentration of Pu-241 in air sampled at a Belgrade site following the Chernobyl accident",
volume = "64",
number = "6",
pages = "689-692",
doi = "10.1016/j.apradiso.2005.12.014"
}

Vukanac, I., Paligorić, D., Novković, D. N., Đurašević, M. M., Obradović, Z., Milošević, Z.,& Manic, S.. (2006). Retrospective estimation of the concentration of Pu-241 in air sampled at a Belgrade site following the Chernobyl accident. in Applied Radiation and Isotopes, 64(6), 689-692.
https://doi.org/10.1016/j.apradiso.2005.12.014

Vukanac I, Paligorić D, Novković DN, Đurašević MM, Obradović Z, Milošević Z, Manic S. Retrospective estimation of the concentration of Pu-241 in air sampled at a Belgrade site following the Chernobyl accident. in Applied Radiation and Isotopes. 2006;64(6):689-692.
doi:10.1016/j.apradiso.2005.12.014 .

Vukanac, Ivana, Paligorić, D., Novković, Dušan N., Đurašević, Mirjana M., Obradović, Z, Milošević, Zoran, Manic, S, "Retrospective estimation of the concentration of Pu-241 in air sampled at a Belgrade site following the Chernobyl accident" in Applied Radiation and Isotopes, 64, no. 6 (2006):689-692,
https://doi.org/10.1016/j.apradiso.2005.12.014 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
AU  - Kandić, Aleksandar
AU  - Vukanac, Ivana
AU  - Đurašević, Mirjana M.
AU  - Jordanov, Dragana
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3097
AB  - A long time scale experimental testing of the exponential decay law of gold, Au-198, is presented. The experiment has been processed by using a contemporary digital spectrum analyzer. Within the limits of the experimental errors no deviation from the exponential decay law of Au-198 has been observed. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Testing the exponential decay law of gold Au-198
VL  - 566
IS  - 2
SP  - 477
EP  - 480
DO  - 10.1016/j.nima.2006.07.044
ER  - 

@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo and Kandić, Aleksandar and Vukanac, Ivana and Đurašević, Mirjana M. and Jordanov, Dragana",
year = "2006",
abstract = "A long time scale experimental testing of the exponential decay law of gold, Au-198, is presented. The experiment has been processed by using a contemporary digital spectrum analyzer. Within the limits of the experimental errors no deviation from the exponential decay law of Au-198 has been observed. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Testing the exponential decay law of gold Au-198",
volume = "566",
number = "2",
pages = "477-480",
doi = "10.1016/j.nima.2006.07.044"
}

Novković, D. N., Nađđerđ, L., Kandić, A., Vukanac, I., Đurašević, M. M.,& Jordanov, D.. (2006). Testing the exponential decay law of gold Au-198. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 566(2), 477-480.
https://doi.org/10.1016/j.nima.2006.07.044

Novković DN, Nađđerđ L, Kandić A, Vukanac I, Đurašević MM, Jordanov D. Testing the exponential decay law of gold Au-198. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2006;566(2):477-480.
doi:10.1016/j.nima.2006.07.044 .

Novković, Dušan N., Nađđerđ, Laslo, Kandić, Aleksandar, Vukanac, Ivana, Đurašević, Mirjana M., Jordanov, Dragana, "Testing the exponential decay law of gold Au-198" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 566, no. 2 (2006):477-480,
https://doi.org/10.1016/j.nima.2006.07.044 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Nađđerđ, Laslo
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10422
AB  - The experimental test of the exponential decay of 198Au has been performed applying the Ge semiconductor spectrometer. The decay of 198Au nuclei was followed by the precise measurement of the decay constant over the time interval of 1.3 half-life in the time period from 0.02 to 25 half-lives after the irradiation. No deviations from the exponential law have been detected within the limits of the experimental error. The measured value of the 198Au half-life was in good agreement with the previously measured value.
T2  - Journal of Research in Physics
T1  - Experimental Test of Exponential Decay of 198Au
VL  - 30
IS  - 2
SP  - 89
EP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10422
ER  - 

@article{
author = "Novković, Dušan N. and Nađđerđ, Laslo",
year = "2006",
abstract = "The experimental test of the exponential decay of 198Au has been performed applying the Ge semiconductor spectrometer. The decay of 198Au nuclei was followed by the precise measurement of the decay constant over the time interval of 1.3 half-life in the time period from 0.02 to 25 half-lives after the irradiation. No deviations from the exponential law have been detected within the limits of the experimental error. The measured value of the 198Au half-life was in good agreement with the previously measured value.",
journal = "Journal of Research in Physics",
title = "Experimental Test of Exponential Decay of 198Au",
volume = "30",
number = "2",
pages = "89-94",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10422"
}

Novković, D. N.,& Nađđerđ, L.. (2006). Experimental Test of Exponential Decay of 198Au. in Journal of Research in Physics, 30(2), 89-94.
https://hdl.handle.net/21.15107/rcub_vinar_10422

Novković DN, Nađđerđ L. Experimental Test of Exponential Decay of 198Au. in Journal of Research in Physics. 2006;30(2):89-94.
https://hdl.handle.net/21.15107/rcub_vinar_10422 .

Novković, Dušan N., Nađđerđ, Laslo, "Experimental Test of Exponential Decay of 198Au" in Journal of Research in Physics, 30, no. 2 (2006):89-94,
https://hdl.handle.net/21.15107/rcub_vinar_10422 .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Novković, Dušan N.
AU  - Kandić, Aleksandar
AU  - Nađđerđ, Laslo
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2861
AB  - The content of impurities in gold foils intended for neutron flux measurements has been determined. The gold foils were irradiated by a high neutron flux and the activities of the activated impurities were measured after a cooling period of 48 days by a HPGe spectrometer. The activated impurities were Zn and Ag, and their content was determined from the measured activities ratio of the isotopes Zn-65 and Ag-110m to Au-198. The activated isotopes have longer half-lives than Au-198 and they could be measured after the cooling period. (C) 2004 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - Determination of impurity content in gold foils
VL  - 39
IS  - 4
SP  - 417
EP  - 420
DO  - 10.1016/j.radmeas.2004.06.007
ER  - 

@article{
author = "Vukanac, Ivana and Novković, Dušan N. and Kandić, Aleksandar and Nađđerđ, Laslo",
year = "2005",
abstract = "The content of impurities in gold foils intended for neutron flux measurements has been determined. The gold foils were irradiated by a high neutron flux and the activities of the activated impurities were measured after a cooling period of 48 days by a HPGe spectrometer. The activated impurities were Zn and Ag, and their content was determined from the measured activities ratio of the isotopes Zn-65 and Ag-110m to Au-198. The activated isotopes have longer half-lives than Au-198 and they could be measured after the cooling period. (C) 2004 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "Determination of impurity content in gold foils",
volume = "39",
number = "4",
pages = "417-420",
doi = "10.1016/j.radmeas.2004.06.007"
}

Vukanac, I., Novković, D. N., Kandić, A.,& Nađđerđ, L.. (2005). Determination of impurity content in gold foils. in Radiation Measurements, 39(4), 417-420.
https://doi.org/10.1016/j.radmeas.2004.06.007

Vukanac I, Novković DN, Kandić A, Nađđerđ L. Determination of impurity content in gold foils. in Radiation Measurements. 2005;39(4):417-420.
doi:10.1016/j.radmeas.2004.06.007 .

Vukanac, Ivana, Novković, Dušan N., Kandić, Aleksandar, Nađđerđ, Laslo, "Determination of impurity content in gold foils" in Radiation Measurements, 39, no. 4 (2005):417-420,
https://doi.org/10.1016/j.radmeas.2004.06.007 . .

TY  - CONF
AU  - Đurašević, Mirjana M.
AU  - Kandić, Aleksandar
AU  - Novković, Dušan N.
AU  - Vukanac, Ivana
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8651
AB  - The methods that use scintillation counting with ZnS(Ag) scintillation detector are widely used for gross alpha activity determination. Optimal counting conditions could be provided by properly setting of operating voltage and by this means, the long term stability could be achieved. The common criteria for the selection of optimal counting conditions for a ZnS(Ag) scintillation detector do not consider simultaneously operating voltage and discrimination level variation. In present method a relationship between voltage supply and discrimination level is derived for counting efficiency.
C3  - Balkan Physics Letters
T1  - Optimal conditions for a ZnS(Ag) scintillation detector operation
IS  - Spec. issue
SP  - 217
EP  - 221
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8651
ER  - 

@conference{
author = "Đurašević, Mirjana M. and Kandić, Aleksandar and Novković, Dušan N. and Vukanac, Ivana",
year = "2004",
abstract = "The methods that use scintillation counting with ZnS(Ag) scintillation detector are widely used for gross alpha activity determination. Optimal counting conditions could be provided by properly setting of operating voltage and by this means, the long term stability could be achieved. The common criteria for the selection of optimal counting conditions for a ZnS(Ag) scintillation detector do not consider simultaneously operating voltage and discrimination level variation. In present method a relationship between voltage supply and discrimination level is derived for counting efficiency.",
journal = "Balkan Physics Letters",
title = "Optimal conditions for a ZnS(Ag) scintillation detector operation",
number = "Spec. issue",
pages = "217-221",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8651"
}

Đurašević, M. M., Kandić, A., Novković, D. N.,& Vukanac, I.. (2004). Optimal conditions for a ZnS(Ag) scintillation detector operation. in Balkan Physics Letters(Spec. issue), 217-221.
https://hdl.handle.net/21.15107/rcub_vinar_8651

Đurašević MM, Kandić A, Novković DN, Vukanac I. Optimal conditions for a ZnS(Ag) scintillation detector operation. in Balkan Physics Letters. 2004;(Spec. issue):217-221.
https://hdl.handle.net/21.15107/rcub_vinar_8651 .

Đurašević, Mirjana M., Kandić, Aleksandar, Novković, Dušan N., Vukanac, Ivana, "Optimal conditions for a ZnS(Ag) scintillation detector operation" in Balkan Physics Letters, no. Spec. issue (2004):217-221,
https://hdl.handle.net/21.15107/rcub_vinar_8651 .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Kandić, Aleksandar
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2715
AB  - Thermal neutrons produce isotopes of Au-198 and Au-199 in the two successive (n,y) reactions in irradiated gold. The ratio of their activities is proportional to the flux of the thermal neutrons, which was used for determination of the intensity of the flux. This method of determination of the flux of thermal neutrons is appropriate when the mass of the irradiated gold is not known. The comparison of the values of the flux of thermal neutrons obtained by this method and by the classical method of the activity measurement of Au-198 shows good agreement. (C) 2003 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - The determination of the thermal neutron flux density by the measurement of the activities ratio Au-199/Au-198
VL  - 38
IS  - 2
SP  - 193
EP  - 195
DO  - 10.1016/j.radmeas.2003.07.003
ER  - 

@article{
author = "Novković, Dušan N. and Kandić, Aleksandar",
year = "2004",
abstract = "Thermal neutrons produce isotopes of Au-198 and Au-199 in the two successive (n,y) reactions in irradiated gold. The ratio of their activities is proportional to the flux of the thermal neutrons, which was used for determination of the intensity of the flux. This method of determination of the flux of thermal neutrons is appropriate when the mass of the irradiated gold is not known. The comparison of the values of the flux of thermal neutrons obtained by this method and by the classical method of the activity measurement of Au-198 shows good agreement. (C) 2003 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "The determination of the thermal neutron flux density by the measurement of the activities ratio Au-199/Au-198",
volume = "38",
number = "2",
pages = "193-195",
doi = "10.1016/j.radmeas.2003.07.003"
}

Novković, D. N.,& Kandić, A.. (2004). The determination of the thermal neutron flux density by the measurement of the activities ratio Au-199/Au-198. in Radiation Measurements, 38(2), 193-195.
https://doi.org/10.1016/j.radmeas.2003.07.003

Novković DN, Kandić A. The determination of the thermal neutron flux density by the measurement of the activities ratio Au-199/Au-198. in Radiation Measurements. 2004;38(2):193-195.
doi:10.1016/j.radmeas.2003.07.003 .

Novković, Dušan N., Kandić, Aleksandar, "The determination of the thermal neutron flux density by the measurement of the activities ratio Au-199/Au-198" in Radiation Measurements, 38, no. 2 (2004):193-195,
https://doi.org/10.1016/j.radmeas.2003.07.003 . .

TY  - CONF
AU  - Bek-Uzarov, D
AU  - Zekovic, L
AU  - Kovačević, Milojko
AU  - Maglic, K
AU  - Novković, Dušan N.
AU  - Stanković, Dalibor M.
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6477
AB  - Research and development of advanced metrology began at 1950 as a need in research and development of various research projects, particularly national projects as it was the Nuclear Reactor start up for research purposes and for radionuclide production. At this time no commercial offer of various I detectors, measuring sensors, other measuring devices were not been commercially available. Therefore young physicists were collected ill working groups with the task in diploma work, master degrees, to create and to build up the own instrumentation. During the years the ionising radiation ad heat metrology, in some metrology branch, maturated up to the world scientific level. Some of devices after are used for research purposes, were applied in public economy as well. Very similar development pathways were in other research institutes that are not in this paper described. Two groups in ionizing radiation metrology and a large heat and temperature metrology laboratory were organized. The primary heat and temperature standardization, as well as the primary standards in heat, temperature, radioactivity measurements and ionizing radiation dosimetry group were as the National metrology laboratory completed. The both of them, were by international intercomparaisons own meteorological qualification verified. Very similar metrology developments were in other research institutes in this paper presented. So, Institute of Physics and Faculty of Sciences at the Belgrade University has been performed black body temperature measurements, which some of them are currently for the customer produced, are also ill paper treated. Metrology education at the universities and pos-graduate level with syllabus program at the tree Serbian Universities in Belgrade, Novi Sad and Kragujevac are in paper described. Standardization of physical quantities, units, physical constants in International Measuring System-SI is also described. Because of some technical difficulties to get the competent and relevant documentation, only a part of research laboratories, dealing in advanced metrology achievement, are in this paper described.
T1  - Metrology and standardization
VL  - 104
SP  - 391
EP  - 432
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6477
ER  - 

@conference{
author = "Bek-Uzarov, D and Zekovic, L and Kovačević, Milojko and Maglic, K and Novković, Dušan N. and Stanković, Dalibor M.",
year = "2002",
abstract = "Research and development of advanced metrology began at 1950 as a need in research and development of various research projects, particularly national projects as it was the Nuclear Reactor start up for research purposes and for radionuclide production. At this time no commercial offer of various I detectors, measuring sensors, other measuring devices were not been commercially available. Therefore young physicists were collected ill working groups with the task in diploma work, master degrees, to create and to build up the own instrumentation. During the years the ionising radiation ad heat metrology, in some metrology branch, maturated up to the world scientific level. Some of devices after are used for research purposes, were applied in public economy as well. Very similar development pathways were in other research institutes that are not in this paper described. Two groups in ionizing radiation metrology and a large heat and temperature metrology laboratory were organized. The primary heat and temperature standardization, as well as the primary standards in heat, temperature, radioactivity measurements and ionizing radiation dosimetry group were as the National metrology laboratory completed. The both of them, were by international intercomparaisons own meteorological qualification verified. Very similar metrology developments were in other research institutes in this paper presented. So, Institute of Physics and Faculty of Sciences at the Belgrade University has been performed black body temperature measurements, which some of them are currently for the customer produced, are also ill paper treated. Metrology education at the universities and pos-graduate level with syllabus program at the tree Serbian Universities in Belgrade, Novi Sad and Kragujevac are in paper described. Standardization of physical quantities, units, physical constants in International Measuring System-SI is also described. Because of some technical difficulties to get the competent and relevant documentation, only a part of research laboratories, dealing in advanced metrology achievement, are in this paper described.",
title = "Metrology and standardization",
volume = "104",
pages = "391-432",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6477"
}

Bek-Uzarov, D., Zekovic, L., Kovačević, M., Maglic, K., Novković, D. N.,& Stanković, D. M.. (2002). Metrology and standardization. , 104, 391-432.
https://hdl.handle.net/21.15107/rcub_vinar_6477

Bek-Uzarov D, Zekovic L, Kovačević M, Maglic K, Novković DN, Stanković DM. Metrology and standardization. 2002;104:391-432.
https://hdl.handle.net/21.15107/rcub_vinar_6477 .

Bek-Uzarov, D, Zekovic, L, Kovačević, Milojko, Maglic, K, Novković, Dušan N., Stanković, Dalibor M., "Metrology and standardization", 104 (2002):391-432,
https://hdl.handle.net/21.15107/rcub_vinar_6477 .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Vukanac, Ivana
AU  - Milošević, Zoran
PY  - 2000
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2439
AB  - The mechanism of detection of chemical vapors in air by an ionization chamber supplied by DC and AC voltage has been described. The theoretical explanation is based on numerical solutions of the differential equations of the cylindrical ionization chamber. The current of the ionization chamber operating in the AC regime has two components: a conductive component, caused by the ions drifts, and a capacitive component, caused by the distortion of the electric field. The ionization chamber operating in the DC regime has only the first component; hence the AC supplied chamber has larger response than the DC supplied chamber.
T2  - Isotopes in Environmental and Health Studies
T1  - The mechanism of detection of air pollution by an ionization chamber
VL  - 36
IS  - 3
SP  - 241
EP  - 254
DO  - 10.1080/10256010008036384
ER  - 

@article{
author = "Novković, Dušan N. and Vukanac, Ivana and Milošević, Zoran",
year = "2000",
abstract = "The mechanism of detection of chemical vapors in air by an ionization chamber supplied by DC and AC voltage has been described. The theoretical explanation is based on numerical solutions of the differential equations of the cylindrical ionization chamber. The current of the ionization chamber operating in the AC regime has two components: a conductive component, caused by the ions drifts, and a capacitive component, caused by the distortion of the electric field. The ionization chamber operating in the DC regime has only the first component; hence the AC supplied chamber has larger response than the DC supplied chamber.",
journal = "Isotopes in Environmental and Health Studies",
title = "The mechanism of detection of air pollution by an ionization chamber",
volume = "36",
number = "3",
pages = "241-254",
doi = "10.1080/10256010008036384"
}

Novković, D. N., Vukanac, I.,& Milošević, Z.. (2000). The mechanism of detection of air pollution by an ionization chamber. in Isotopes in Environmental and Health Studies, 36(3), 241-254.
https://doi.org/10.1080/10256010008036384

Novković DN, Vukanac I, Milošević Z. The mechanism of detection of air pollution by an ionization chamber. in Isotopes in Environmental and Health Studies. 2000;36(3):241-254.
doi:10.1080/10256010008036384 .

Novković, Dušan N., Vukanac, Ivana, Milošević, Zoran, "The mechanism of detection of air pollution by an ionization chamber" in Isotopes in Environmental and Health Studies, 36, no. 3 (2000):241-254,
https://doi.org/10.1080/10256010008036384 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Tomašević, M.
AU  - Subotić, Krunoslav M.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2116
AB  - A system of reduced differential equations generally valid for plane-parallel, cylindrical and spherical ionization chambers, which is appropriate for numerical solution, has been derived. The system has been solved numerically for plane-parallel and spherical ionization chambers filled with air. The comparison of the calculated results of Armstrong and Tate, for plane-parallel ionization chambers, and Sprinkle and Tate, for spherical ionization chambers, with the present calculations has shown a good agreement. The calculated values for ionization chambers filled with CO2 were also in good agreement with the experimental data of Moriuchi et al.
T2  - Physics in Medicine and Biology
T1  - Numerical solutions of differential equations of an ionization chamber: plane-parallel and spherical geometry
VL  - 43
IS  - 3
SP  - 559
EP  - 575
DO  - 10.1088/0031-9155/43/3/008
ER  - 

@article{
author = "Novković, Dušan N. and Tomašević, M. and Subotić, Krunoslav M.",
year = "1998",
abstract = "A system of reduced differential equations generally valid for plane-parallel, cylindrical and spherical ionization chambers, which is appropriate for numerical solution, has been derived. The system has been solved numerically for plane-parallel and spherical ionization chambers filled with air. The comparison of the calculated results of Armstrong and Tate, for plane-parallel ionization chambers, and Sprinkle and Tate, for spherical ionization chambers, with the present calculations has shown a good agreement. The calculated values for ionization chambers filled with CO2 were also in good agreement with the experimental data of Moriuchi et al.",
journal = "Physics in Medicine and Biology",
title = "Numerical solutions of differential equations of an ionization chamber: plane-parallel and spherical geometry",
volume = "43",
number = "3",
pages = "559-575",
doi = "10.1088/0031-9155/43/3/008"
}

Novković, D. N., Tomašević, M.,& Subotić, K. M.. (1998). Numerical solutions of differential equations of an ionization chamber: plane-parallel and spherical geometry. in Physics in Medicine and Biology, 43(3), 559-575.
https://doi.org/10.1088/0031-9155/43/3/008

Novković DN, Tomašević M, Subotić KM. Numerical solutions of differential equations of an ionization chamber: plane-parallel and spherical geometry. in Physics in Medicine and Biology. 1998;43(3):559-575.
doi:10.1088/0031-9155/43/3/008 .

Novković, Dušan N., Tomašević, M., Subotić, Krunoslav M., "Numerical solutions of differential equations of an ionization chamber: plane-parallel and spherical geometry" in Physics in Medicine and Biology, 43, no. 3 (1998):559-575,
https://doi.org/10.1088/0031-9155/43/3/008 . .

TY  - JOUR
AU  - Stojanović, Milan
AU  - Osmokrović, Predrag V.
AU  - Boreli, F
AU  - Novković, Dušan N.
AU  - Webb, R
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7232
AB  - This paper presents a detailed description of an upgraded silicon surface barrier (SE) detector and analysis of X and gamma radiation and of the spectra given by it. The most frequently used application of these detectors was in measurements and analyses of alpha spectra. However, analysis of spectra gained here presented a silicon surface barrier detector showing possibilities of their wider application in various nuclear techniques and technologies. This specially referes to the feasibility of their use in the conditions that are different from those in laboratories, such as mines, surroundings of nuclear power plants etc. Recorded spectra from Co-57, show that SE detectors are very acceptable in nuclear laboratories for nuclear spectroscopy at room temperatures. On the contrary, field application in nuclear techniques connected with the protection of the environment and counting systems is much wider, and the detector temperature could reach 60 degrees C. (C) 1997 Elsevier Science S.A.
T2  - Thin Solid Films
T1  - Characteristics of large area silicon surface barrier detectors
VL  - 296
IS  - 1-2
SP  - 181
EP  - 183
DO  - 10.1016/S0040-6090(96)09334-0
ER  - 

@article{
author = "Stojanović, Milan and Osmokrović, Predrag V. and Boreli, F and Novković, Dušan N. and Webb, R",
year = "1997",
abstract = "This paper presents a detailed description of an upgraded silicon surface barrier (SE) detector and analysis of X and gamma radiation and of the spectra given by it. The most frequently used application of these detectors was in measurements and analyses of alpha spectra. However, analysis of spectra gained here presented a silicon surface barrier detector showing possibilities of their wider application in various nuclear techniques and technologies. This specially referes to the feasibility of their use in the conditions that are different from those in laboratories, such as mines, surroundings of nuclear power plants etc. Recorded spectra from Co-57, show that SE detectors are very acceptable in nuclear laboratories for nuclear spectroscopy at room temperatures. On the contrary, field application in nuclear techniques connected with the protection of the environment and counting systems is much wider, and the detector temperature could reach 60 degrees C. (C) 1997 Elsevier Science S.A.",
journal = "Thin Solid Films",
title = "Characteristics of large area silicon surface barrier detectors",
volume = "296",
number = "1-2",
pages = "181-183",
doi = "10.1016/S0040-6090(96)09334-0"
}

Stojanović, M., Osmokrović, P. V., Boreli, F., Novković, D. N.,& Webb, R.. (1997). Characteristics of large area silicon surface barrier detectors. in Thin Solid Films, 296(1-2), 181-183.
https://doi.org/10.1016/S0040-6090(96)09334-0

Stojanović M, Osmokrović PV, Boreli F, Novković DN, Webb R. Characteristics of large area silicon surface barrier detectors. in Thin Solid Films. 1997;296(1-2):181-183.
doi:10.1016/S0040-6090(96)09334-0 .

Stojanović, Milan, Osmokrović, Predrag V., Boreli, F, Novković, Dušan N., Webb, R, "Characteristics of large area silicon surface barrier detectors" in Thin Solid Films, 296, no. 1-2 (1997):181-183,
https://doi.org/10.1016/S0040-6090(96)09334-0 . .

TY  - JOUR
AU  - Milošević, Zoran
AU  - Novković, Dušan N.
AU  - Subotić, Krunoslav M.
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2006
AB  - The results of the measurement of the energy straggling of low energy alpha particles in the polyatomic and diatomic molecule media are reported. A general analytical formula for straggling widths of light ions, obtained by solving Symons equation for the second and third order central moments of the straggling distributions in non-relativistic approximation, has shown remarkably good agreement with experimental data at energy losses less than 70% of the initial projectile energies.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Energy loss straggling of low energy alpha particles in a medium composed of polyatomic and diatomic molecules
VL  - 117
IS  - 1-2
SP  - 38
EP  - 40
DO  - 10.1016/0168-583X(96)00308-4
ER  - 

@article{
author = "Milošević, Zoran and Novković, Dušan N. and Subotić, Krunoslav M.",
year = "1996",
abstract = "The results of the measurement of the energy straggling of low energy alpha particles in the polyatomic and diatomic molecule media are reported. A general analytical formula for straggling widths of light ions, obtained by solving Symons equation for the second and third order central moments of the straggling distributions in non-relativistic approximation, has shown remarkably good agreement with experimental data at energy losses less than 70% of the initial projectile energies.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Energy loss straggling of low energy alpha particles in a medium composed of polyatomic and diatomic molecules",
volume = "117",
number = "1-2",
pages = "38-40",
doi = "10.1016/0168-583X(96)00308-4"
}

Milošević, Z., Novković, D. N.,& Subotić, K. M.. (1996). Energy loss straggling of low energy alpha particles in a medium composed of polyatomic and diatomic molecules. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 117(1-2), 38-40.
https://doi.org/10.1016/0168-583X(96)00308-4

Milošević Z, Novković DN, Subotić KM. Energy loss straggling of low energy alpha particles in a medium composed of polyatomic and diatomic molecules. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 1996;117(1-2):38-40.
doi:10.1016/0168-583X(96)00308-4 .

Milošević, Zoran, Novković, Dušan N., Subotić, Krunoslav M., "Energy loss straggling of low energy alpha particles in a medium composed of polyatomic and diatomic molecules" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 117, no. 1-2 (1996):38-40,
https://doi.org/10.1016/0168-583X(96)00308-4 . .

TY  - JOUR
AU  - Novković, Dušan N.
AU  - Milošević, Zoran
AU  - Subotić, Krunoslav M.
AU  - Manić-Kudra, S.
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1974
AB  - The differential equations of the cylindrical ionization chamber filled with air have been solved numerically for different ratios of the outer and inner electrode for both polarities of the voltage supply. The obtained distributions of the electric field strength inside the chamber confirm the analysis of Thomson and Thomson and the calculations made by Mie. The calculated collection efficiencies are in good agreement with the results of the calculation of Sprinkle and Tate, and with the experimental data of Moriuchi et al.
T2  - Physics in Medicine and Biology
T1  - Numerical solutions of differential equations of a cylindrical ionization chamber
VL  - 41
IS  - 4
SP  - 725
EP  - 741
DO  - 10.1088/0031-9155/41/4/009
ER  - 

@article{
author = "Novković, Dušan N. and Milošević, Zoran and Subotić, Krunoslav M. and Manić-Kudra, S.",
year = "1996",
abstract = "The differential equations of the cylindrical ionization chamber filled with air have been solved numerically for different ratios of the outer and inner electrode for both polarities of the voltage supply. The obtained distributions of the electric field strength inside the chamber confirm the analysis of Thomson and Thomson and the calculations made by Mie. The calculated collection efficiencies are in good agreement with the results of the calculation of Sprinkle and Tate, and with the experimental data of Moriuchi et al.",
journal = "Physics in Medicine and Biology",
title = "Numerical solutions of differential equations of a cylindrical ionization chamber",
volume = "41",
number = "4",
pages = "725-741",
doi = "10.1088/0031-9155/41/4/009"
}

Novković, D. N., Milošević, Z., Subotić, K. M.,& Manić-Kudra, S.. (1996). Numerical solutions of differential equations of a cylindrical ionization chamber. in Physics in Medicine and Biology, 41(4), 725-741.
https://doi.org/10.1088/0031-9155/41/4/009

Novković DN, Milošević Z, Subotić KM, Manić-Kudra S. Numerical solutions of differential equations of a cylindrical ionization chamber. in Physics in Medicine and Biology. 1996;41(4):725-741.
doi:10.1088/0031-9155/41/4/009 .

Novković, Dušan N., Milošević, Zoran, Subotić, Krunoslav M., Manić-Kudra, S., "Numerical solutions of differential equations of a cylindrical ionization chamber" in Physics in Medicine and Biology, 41, no. 4 (1996):725-741,
https://doi.org/10.1088/0031-9155/41/4/009 . .