Kovačević, Milojko

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Authority KeyName Variants
orcid::0000-0002-2692-9673
  • Kovačević, Milojko (25)
Projects
Photonics components and systems Experimental and theoretical investigation in Radiation physics and radioecology
Development of the methods, sensors and systems for monitoring quality of water, air and soil Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden
Joint research on various types of radiation dosimeters Physical and functional effects of radiation interaction with electrotechnical and biological systems
Romanization, urbanization and transformation of urban centres of civil, military and residential character in Roman provinces on territory of Serbia Joint research of measurements and effects of ionizing and UV radiation in medicine and environmental protection
Optoelectronics nanodimension systems - the rout towards applications Nuklearna fizika, metode i instrumenti
Radiekološka istraživanja na KiM, posebno na područjima na kojima je vršeno bombardovanje u Nato agresiji i utvrđivanje mogućih posledica bombardovanja na živi svet Ministry of Sciences and Technological Development of Republic of Serbia [141041]
Research Grants Council of the Hong Kong Special Administrative Region, China [PolyU 5316/09E], Research Committee of The Hong Kong Polytechnic University Serbian Ministry of Sciences [141041]
Serbian Ministry of Sciences [1410413] Serbian Ministry of Sciences Technological Development [141041]
strategic research grant from the City University [7002775] Strategic Research Grant of City University of Hong Kong [CityU 7002775]

Author's Bibliography

Environmental radioactivity in southern Serbia at locations where depleted uranium was used

Sarap, Nataša; Janković, Marija M.; Todorović, Dragana; Krneta-Nikolić, Jelena D.; Kovačević, Milojko

(2014)

TY  - JOUR
AU  - Sarap, Nataša
AU  - Janković, Marija M.
AU  - Todorović, Dragana
AU  - Krneta-Nikolić, Jelena D.
AU  - Kovačević, Milojko
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/240
AB  - In the 1999 bombing of the Federal Republic of Yugoslavia, NATO forces used ammunition containing depleted uranium. The cleaning of depleted uranium that followed was performed in southern Serbia by the Vinca Institute of Nuclear Sciences between 2002 and 2007 at the locations of Pljackovica, Borovac, Bratoselce, and Reljan. This paper presents detailed results of radioactivity monitoring four years after cleaning (2011), which included the determination of gamma emitters in soil, water, and plant samples, as well as gross alpha and beta activities in water samples. The gamma spectrometry results showed the presence of natural radionuclides Ra-226, Th-232, K-40, U-235, U-238, and the produced radionuclide Cs-137 (from the Chernobyl accident). In order to evaluate the radiological hazard from soil, the radium equivalent activity, the gamma dose rate, the external hazard index, and the annual effective dose were calculated. Considering that a significant number of people inhabit the studied locations, the periodical monitoring of radionuclide content is vital.
T2  - Arhiv za higijenu rada i toksikologiju
T1  - Environmental radioactivity in southern Serbia at locations where depleted uranium was used
VL  - 65
IS  - 2
SP  - 189
EP  - 197
DO  - 10.2478/10004-1254-65-2014-2427
ER  - 
@article{
author = "Sarap, Nataša and Janković, Marija M. and Todorović, Dragana and Krneta-Nikolić, Jelena D. and Kovačević, Milojko",
year = "2014",
abstract = "In the 1999 bombing of the Federal Republic of Yugoslavia, NATO forces used ammunition containing depleted uranium. The cleaning of depleted uranium that followed was performed in southern Serbia by the Vinca Institute of Nuclear Sciences between 2002 and 2007 at the locations of Pljackovica, Borovac, Bratoselce, and Reljan. This paper presents detailed results of radioactivity monitoring four years after cleaning (2011), which included the determination of gamma emitters in soil, water, and plant samples, as well as gross alpha and beta activities in water samples. The gamma spectrometry results showed the presence of natural radionuclides Ra-226, Th-232, K-40, U-235, U-238, and the produced radionuclide Cs-137 (from the Chernobyl accident). In order to evaluate the radiological hazard from soil, the radium equivalent activity, the gamma dose rate, the external hazard index, and the annual effective dose were calculated. Considering that a significant number of people inhabit the studied locations, the periodical monitoring of radionuclide content is vital.",
journal = "Arhiv za higijenu rada i toksikologiju",
title = "Environmental radioactivity in southern Serbia at locations where depleted uranium was used",
volume = "65",
number = "2",
pages = "189-197",
doi = "10.2478/10004-1254-65-2014-2427"
}
Sarap, N., Janković, M. M., Todorović, D., Krneta-Nikolić, J. D.,& Kovačević, M.. (2014). Environmental radioactivity in southern Serbia at locations where depleted uranium was used. in Arhiv za higijenu rada i toksikologiju, 65(2), 189-197.
https://doi.org/10.2478/10004-1254-65-2014-2427
Sarap N, Janković MM, Todorović D, Krneta-Nikolić JD, Kovačević M. Environmental radioactivity in southern Serbia at locations where depleted uranium was used. in Arhiv za higijenu rada i toksikologiju. 2014;65(2):189-197.
doi:10.2478/10004-1254-65-2014-2427 .
Sarap, Nataša, Janković, Marija M., Todorović, Dragana, Krneta-Nikolić, Jelena D., Kovačević, Milojko, "Environmental radioactivity in southern Serbia at locations where depleted uranium was used" in Arhiv za higijenu rada i toksikologiju, 65, no. 2 (2014):189-197,
https://doi.org/10.2478/10004-1254-65-2014-2427 . .
6
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10

Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation

Pejović, Milić M.; Ciraj-Bjelac, Olivera; Kovačević, Milojko; Rajovic, Zoran; Ilic, Gvozden

(2013)

TY  - JOUR
AU  - Pejović, Milić M.
AU  - Ciraj-Bjelac, Olivera
AU  - Kovačević, Milojko
AU  - Rajovic, Zoran
AU  - Ilic, Gvozden
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5602
AB  - Investigation of Al-gate p-channel MOSFETs sensitivity following irradiation using 200 and 280 kV X-ray beams as well as gamma-ray irradiation of Co-60 in the dose range from 1 to 5 Gy was performed in this paper. The response followed on the basis of threshold voltage shift and was studied as a function of absorbed dose. It was shown that the most significant change in threshold voltage was in the case of MOSFET irradiation in X-ray fields of 200 kV and when the gate voltage was +5V. For practical applications in dosimetry, the sensitivity of the investigated MOSFETs was also satisfactory for X-ray tube voltage of 280 kV and for gamma rays. Possible processes in gate oxide caused by radiation and its impact on the response of MOSFETs were also analyzed in this paper.
T2  - International Journal of Photoenergy
T1  - Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation
DO  - 10.1155/2013/158403
ER  - 
@article{
author = "Pejović, Milić M. and Ciraj-Bjelac, Olivera and Kovačević, Milojko and Rajovic, Zoran and Ilic, Gvozden",
year = "2013",
abstract = "Investigation of Al-gate p-channel MOSFETs sensitivity following irradiation using 200 and 280 kV X-ray beams as well as gamma-ray irradiation of Co-60 in the dose range from 1 to 5 Gy was performed in this paper. The response followed on the basis of threshold voltage shift and was studied as a function of absorbed dose. It was shown that the most significant change in threshold voltage was in the case of MOSFET irradiation in X-ray fields of 200 kV and when the gate voltage was +5V. For practical applications in dosimetry, the sensitivity of the investigated MOSFETs was also satisfactory for X-ray tube voltage of 280 kV and for gamma rays. Possible processes in gate oxide caused by radiation and its impact on the response of MOSFETs were also analyzed in this paper.",
journal = "International Journal of Photoenergy",
title = "Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation",
doi = "10.1155/2013/158403"
}
Pejović, M. M., Ciraj-Bjelac, O., Kovačević, M., Rajovic, Z.,& Ilic, G.. (2013). Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation. in International Journal of Photoenergy.
https://doi.org/10.1155/2013/158403
Pejović MM, Ciraj-Bjelac O, Kovačević M, Rajovic Z, Ilic G. Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation. in International Journal of Photoenergy. 2013;.
doi:10.1155/2013/158403 .
Pejović, Milić M., Ciraj-Bjelac, Olivera, Kovačević, Milojko, Rajovic, Zoran, Ilic, Gvozden, "Sensitivity of P-Channel MOSFET to X- and Gamma-Ray Irradiation" in International Journal of Photoenergy (2013),
https://doi.org/10.1155/2013/158403 . .
6
3
4

N-channel polysilicon thin film transistors as gamma-ray detectors

Jelenkovic, Emil V.; Kovačević, Milan S.; Stupar, Dragan Z.; Bajic, Jovan S.; Slankamenac, Miloš P.; Kovačević, Milojko; To, Suet

(2013)

TY  - JOUR
AU  - Jelenkovic, Emil V.
AU  - Kovačević, Milan S.
AU  - Stupar, Dragan Z.
AU  - Bajic, Jovan S.
AU  - Slankamenac, Miloš P.
AU  - Kovačević, Milojko
AU  - To, Suet
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5695
AB  - N-type thin film transistors (TFTs) fabricated with fluorinated and hydrogenated polysilicon were exposed to gamma radiation to a cumulative dose up to 1200 Gy(Si). During irradiation, the gate electrode was biased with a positive voltage up to 4.8 V. The effect of irradiation on the electrical characteristics of the devices was monitored after the irradiation steps and in a prolonged period after irradiation. The main monitoring parameter was the threshold voltage which was found to have linear dependence on irradiation dose. This, together with obtained low fading, suggests that thin transistors have potential as radiation dosimeters.
T2  - Measurement Science and Technology
T1  - N-channel polysilicon thin film transistors as gamma-ray detectors
VL  - 24
IS  - 10
DO  - 10.1088/0957-0233/24/10/105103
ER  - 
@article{
author = "Jelenkovic, Emil V. and Kovačević, Milan S. and Stupar, Dragan Z. and Bajic, Jovan S. and Slankamenac, Miloš P. and Kovačević, Milojko and To, Suet",
year = "2013",
abstract = "N-type thin film transistors (TFTs) fabricated with fluorinated and hydrogenated polysilicon were exposed to gamma radiation to a cumulative dose up to 1200 Gy(Si). During irradiation, the gate electrode was biased with a positive voltage up to 4.8 V. The effect of irradiation on the electrical characteristics of the devices was monitored after the irradiation steps and in a prolonged period after irradiation. The main monitoring parameter was the threshold voltage which was found to have linear dependence on irradiation dose. This, together with obtained low fading, suggests that thin transistors have potential as radiation dosimeters.",
journal = "Measurement Science and Technology",
title = "N-channel polysilicon thin film transistors as gamma-ray detectors",
volume = "24",
number = "10",
doi = "10.1088/0957-0233/24/10/105103"
}
Jelenkovic, E. V., Kovačević, M. S., Stupar, D. Z., Bajic, J. S., Slankamenac, M. P., Kovačević, M.,& To, S.. (2013). N-channel polysilicon thin film transistors as gamma-ray detectors. in Measurement Science and Technology, 24(10).
https://doi.org/10.1088/0957-0233/24/10/105103
Jelenkovic EV, Kovačević MS, Stupar DZ, Bajic JS, Slankamenac MP, Kovačević M, To S. N-channel polysilicon thin film transistors as gamma-ray detectors. in Measurement Science and Technology. 2013;24(10).
doi:10.1088/0957-0233/24/10/105103 .
Jelenkovic, Emil V., Kovačević, Milan S., Stupar, Dragan Z., Bajic, Jovan S., Slankamenac, Miloš P., Kovačević, Milojko, To, Suet, "N-channel polysilicon thin film transistors as gamma-ray detectors" in Measurement Science and Technology, 24, no. 10 (2013),
https://doi.org/10.1088/0957-0233/24/10/105103 . .
5
5
5

Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm

Kovačević, Milan S.; Djordjevich, Alexandar; Savovic, Svetislav; Bajic, Jovan S.; Stupar, Dragan Z.; Slankamenac, Miloš P.; Kovačević, Milojko

(2013)

TY  - JOUR
AU  - Kovačević, Milan S.
AU  - Djordjevich, Alexandar
AU  - Savovic, Svetislav
AU  - Bajic, Jovan S.
AU  - Stupar, Dragan Z.
AU  - Slankamenac, Miloš P.
AU  - Kovačević, Milojko
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5592
AB  - As optical fibres are used ever more extensively in space applications, nuclear industry, medicine and high-energy physics experiments, it has become essential to investigate the influence of ionizing radiation on their characteristics. In this work, the radiation-induced attenuation at 530 nm is investigated experimentally in step-index multimode polymethyl-methacrylate plastic optical fibres exposed to low dose-rate gamma radiation. Cumulative doses ranged from 50 Gy to 500 Gy. The radiation induced attenuation has been empirically found to obey the power law RIA = aD(b), where D is the total radiation dose and a and b are the constants determined by fitting.
T2  - Nuclear technology and radiation protection
T1  - Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm
VL  - 28
IS  - 2
SP  - 158
EP  - 162
DO  - 10.2298/NTRP1302158K
ER  - 
@article{
author = "Kovačević, Milan S. and Djordjevich, Alexandar and Savovic, Svetislav and Bajic, Jovan S. and Stupar, Dragan Z. and Slankamenac, Miloš P. and Kovačević, Milojko",
year = "2013",
abstract = "As optical fibres are used ever more extensively in space applications, nuclear industry, medicine and high-energy physics experiments, it has become essential to investigate the influence of ionizing radiation on their characteristics. In this work, the radiation-induced attenuation at 530 nm is investigated experimentally in step-index multimode polymethyl-methacrylate plastic optical fibres exposed to low dose-rate gamma radiation. Cumulative doses ranged from 50 Gy to 500 Gy. The radiation induced attenuation has been empirically found to obey the power law RIA = aD(b), where D is the total radiation dose and a and b are the constants determined by fitting.",
journal = "Nuclear technology and radiation protection",
title = "Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm",
volume = "28",
number = "2",
pages = "158-162",
doi = "10.2298/NTRP1302158K"
}
Kovačević, M. S., Djordjevich, A., Savovic, S., Bajic, J. S., Stupar, D. Z., Slankamenac, M. P.,& Kovačević, M.. (2013). Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm. in Nuclear technology and radiation protection, 28(2), 158-162.
https://doi.org/10.2298/NTRP1302158K
Kovačević MS, Djordjevich A, Savovic S, Bajic JS, Stupar DZ, Slankamenac MP, Kovačević M. Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm. in Nuclear technology and radiation protection. 2013;28(2):158-162.
doi:10.2298/NTRP1302158K .
Kovačević, Milan S., Djordjevich, Alexandar, Savovic, Svetislav, Bajic, Jovan S., Stupar, Dragan Z., Slankamenac, Miloš P., Kovačević, Milojko, "Measurement of (Co)-C-60 Gamma Radiation Induced Attenuation in Multimode Step-Index Pof At 530 Nm" in Nuclear technology and radiation protection, 28, no. 2 (2013):158-162,
https://doi.org/10.2298/NTRP1302158K . .

Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres

Kovačević, Milan S.; Savovic, S.; Djordjevich, A.; Bajic, J.; Stupar, D.; Kovačević, Milojko; Simic, S.

(2013)

TY  - JOUR
AU  - Kovačević, Milan S.
AU  - Savovic, S.
AU  - Djordjevich, A.
AU  - Bajic, J.
AU  - Stupar, D.
AU  - Kovačević, Milojko
AU  - Simic, S.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5273
AB  - In this work, we present the experimental study of the radiation-induced attenuation in step-index polymethyl-methacrylate based plastic optical fibre by exposure to low dose rate ionizing radiation. The low dose exposure has been found to induce significant permanent attenuation in plastic optical fibres. Based on the experimental results, the formula between radiation-induced attenuation and radiation dose is obtained accordingly. The recovery properties of plastic optical fibre also were investigated. The fibre begins to recover immediately after irradiation, but it does not fully recover, i.e. the irradiation leads to permanent damage of polymer. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Optics and Laser Technology
T1  - Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres
VL  - 47
SP  - 148
EP  - 151
DO  - 10.1016/j.optlastec.2012.09.019
ER  - 
@article{
author = "Kovačević, Milan S. and Savovic, S. and Djordjevich, A. and Bajic, J. and Stupar, D. and Kovačević, Milojko and Simic, S.",
year = "2013",
abstract = "In this work, we present the experimental study of the radiation-induced attenuation in step-index polymethyl-methacrylate based plastic optical fibre by exposure to low dose rate ionizing radiation. The low dose exposure has been found to induce significant permanent attenuation in plastic optical fibres. Based on the experimental results, the formula between radiation-induced attenuation and radiation dose is obtained accordingly. The recovery properties of plastic optical fibre also were investigated. The fibre begins to recover immediately after irradiation, but it does not fully recover, i.e. the irradiation leads to permanent damage of polymer. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Optics and Laser Technology",
title = "Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres",
volume = "47",
pages = "148-151",
doi = "10.1016/j.optlastec.2012.09.019"
}
Kovačević, M. S., Savovic, S., Djordjevich, A., Bajic, J., Stupar, D., Kovačević, M.,& Simic, S.. (2013). Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres. in Optics and Laser Technology, 47, 148-151.
https://doi.org/10.1016/j.optlastec.2012.09.019
Kovačević MS, Savovic S, Djordjevich A, Bajic J, Stupar D, Kovačević M, Simic S. Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres. in Optics and Laser Technology. 2013;47:148-151.
doi:10.1016/j.optlastec.2012.09.019 .
Kovačević, Milan S., Savovic, S., Djordjevich, A., Bajic, J., Stupar, D., Kovačević, Milojko, Simic, S., "Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres" in Optics and Laser Technology, 47 (2013):148-151,
https://doi.org/10.1016/j.optlastec.2012.09.019 . .
9
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9

On the Occasion of the 50th Anniversary of Organised Radiation Protection

Ciraj-Bjelac, Olivera; Pantelić, Gordana K.; Kovačević, Milojko

(2013)

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Pantelić, Gordana K.
AU  - Kovačević, Milojko
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5739
T2  - Nuclear technology and radiation protection
T1  - On the Occasion of the 50th Anniversary of Organised Radiation Protection
VL  - 28
IS  - 3
SP  - I
EP  - IV
ER  - 
@article{
author = "Ciraj-Bjelac, Olivera and Pantelić, Gordana K. and Kovačević, Milojko",
year = "2013",
journal = "Nuclear technology and radiation protection",
title = "On the Occasion of the 50th Anniversary of Organised Radiation Protection",
volume = "28",
number = "3",
pages = "I-IV"
}
Ciraj-Bjelac, O., Pantelić, G. K.,& Kovačević, M.. (2013). On the Occasion of the 50th Anniversary of Organised Radiation Protection. in Nuclear technology and radiation protection, 28(3), I-IV.
Ciraj-Bjelac O, Pantelić GK, Kovačević M. On the Occasion of the 50th Anniversary of Organised Radiation Protection. in Nuclear technology and radiation protection. 2013;28(3):I-IV..
Ciraj-Bjelac, Olivera, Pantelić, Gordana K., Kovačević, Milojko, "On the Occasion of the 50th Anniversary of Organised Radiation Protection" in Nuclear technology and radiation protection, 28, no. 3 (2013):I-IV.

Population exposure to ionising radiation: dose magnitude and basic radiation protection principles

Ciraj-Bjelac, Olivera; Todorović, Dragana; Pantelić, Gordana K.; Kovačević, Milojko

(University of Novi Sad, Faculty of Technical Sciences ”Mihajlo Pupin”, 2012)

TY  - CONF
AU  - Ciraj-Bjelac, Olivera
AU  - Todorović, Dragana
AU  - Pantelić, Gordana K.
AU  - Kovačević, Milojko
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8774
AB  - The paper presents major sources of population exposure to ionizing radiation and the magnitude and distribution among various sources. Natural radiation sources are part of human environment. Due to external exposure from space radiation, external exposure from terrestrial radiation, internal exposure from inhalation of radon and thoron and their progeny and due to internal exposure from radionuclides in the body, as a global average, the natural background radiation is 2.4 mSv per year. Apart from natural radiation, nuclear and isotopic techniques represent a wide range of human activities, and for more than a century have very important applications in various areas of life. A brief overview of these methods used in agriculture, industry, science and research, archaeology, history and medicine and their radiation impact will be provided. Parallel to expansion of radiation application, the concerns related to health effects of ionizing radiation have been raised. The scientific discipline called radiation protection has an aim to protect people and environment form excessive and unnecessary exposure to ionizing radiation. There are three basic principles in radiation protection: justification, optimisation of protection and individual dose limitations, and overview of these will be given in the paper.
PB  - University of Novi Sad, Faculty of Technical Sciences ”Mihajlo Pupin”
C3  - Proceeding of the 2. international conference "Ecology of urban areas"
T1  - Population exposure to ionising radiation: dose magnitude and basic radiation protection principles
SP  - 539
EP  - 549
ER  - 
@conference{
author = "Ciraj-Bjelac, Olivera and Todorović, Dragana and Pantelić, Gordana K. and Kovačević, Milojko",
year = "2012",
abstract = "The paper presents major sources of population exposure to ionizing radiation and the magnitude and distribution among various sources. Natural radiation sources are part of human environment. Due to external exposure from space radiation, external exposure from terrestrial radiation, internal exposure from inhalation of radon and thoron and their progeny and due to internal exposure from radionuclides in the body, as a global average, the natural background radiation is 2.4 mSv per year. Apart from natural radiation, nuclear and isotopic techniques represent a wide range of human activities, and for more than a century have very important applications in various areas of life. A brief overview of these methods used in agriculture, industry, science and research, archaeology, history and medicine and their radiation impact will be provided. Parallel to expansion of radiation application, the concerns related to health effects of ionizing radiation have been raised. The scientific discipline called radiation protection has an aim to protect people and environment form excessive and unnecessary exposure to ionizing radiation. There are three basic principles in radiation protection: justification, optimisation of protection and individual dose limitations, and overview of these will be given in the paper.",
publisher = "University of Novi Sad, Faculty of Technical Sciences ”Mihajlo Pupin”",
journal = "Proceeding of the 2. international conference "Ecology of urban areas"",
title = "Population exposure to ionising radiation: dose magnitude and basic radiation protection principles",
pages = "539-549"
}
Ciraj-Bjelac, O., Todorović, D., Pantelić, G. K.,& Kovačević, M.. (2012). Population exposure to ionising radiation: dose magnitude and basic radiation protection principles. in Proceeding of the 2. international conference "Ecology of urban areas"
University of Novi Sad, Faculty of Technical Sciences ”Mihajlo Pupin”., 539-549.
Ciraj-Bjelac O, Todorović D, Pantelić GK, Kovačević M. Population exposure to ionising radiation: dose magnitude and basic radiation protection principles. in Proceeding of the 2. international conference "Ecology of urban areas". 2012;:539-549..
Ciraj-Bjelac, Olivera, Todorović, Dragana, Pantelić, Gordana K., Kovačević, Milojko, "Population exposure to ionising radiation: dose magnitude and basic radiation protection principles" in Proceeding of the 2. international conference "Ecology of urban areas" (2012):539-549.

The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications

Sekulic, Rade S.; Slavković, Nikola M.; Sreckovic, Milesa Z.; Kovačević, Milojko; Stamenovic, Miljan S.

(2012)

TY  - JOUR
AU  - Sekulic, Rade S.
AU  - Slavković, Nikola M.
AU  - Sreckovic, Milesa Z.
AU  - Kovačević, Milojko
AU  - Stamenovic, Miljan S.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4929
AB  - The fiber optics technology is constantly being developed, and is becoming an essential component of contemporary communications, medicine and industry. Fibers, their connections and system components play a major role in optical signal transmission, telecommunications, power transmission, and sensing processes using fiber technology. The two main light propagation characteristics of an optical fiber are attenuation and dispersion. The possibility of controling these parameters is of utmost importance for obtaining the requested transmission quality. This paper reports on an investigation to determine the influence of gamma radiation of Co-60 on the variation of optical fiber propagation parameters, such as polarization mode dispersion. In addition, it also considers chosen topics in the field of fiber optics technology.
T2  - Nuclear technology and radiation protection
T1  - The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications
VL  - 27
IS  - 2
SP  - 171
EP  - 177
DO  - 10.2298/NTRP1202171S
ER  - 
@article{
author = "Sekulic, Rade S. and Slavković, Nikola M. and Sreckovic, Milesa Z. and Kovačević, Milojko and Stamenovic, Miljan S.",
year = "2012",
abstract = "The fiber optics technology is constantly being developed, and is becoming an essential component of contemporary communications, medicine and industry. Fibers, their connections and system components play a major role in optical signal transmission, telecommunications, power transmission, and sensing processes using fiber technology. The two main light propagation characteristics of an optical fiber are attenuation and dispersion. The possibility of controling these parameters is of utmost importance for obtaining the requested transmission quality. This paper reports on an investigation to determine the influence of gamma radiation of Co-60 on the variation of optical fiber propagation parameters, such as polarization mode dispersion. In addition, it also considers chosen topics in the field of fiber optics technology.",
journal = "Nuclear technology and radiation protection",
title = "The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications",
volume = "27",
number = "2",
pages = "171-177",
doi = "10.2298/NTRP1202171S"
}
Sekulic, R. S., Slavković, N. M., Sreckovic, M. Z., Kovačević, M.,& Stamenovic, M. S.. (2012). The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications. in Nuclear technology and radiation protection, 27(2), 171-177.
https://doi.org/10.2298/NTRP1202171S
Sekulic RS, Slavković NM, Sreckovic MZ, Kovačević M, Stamenovic MS. The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications. in Nuclear technology and radiation protection. 2012;27(2):171-177.
doi:10.2298/NTRP1202171S .
Sekulic, Rade S., Slavković, Nikola M., Sreckovic, Milesa Z., Kovačević, Milojko, Stamenovic, Miljan S., "The Influence of Gamma Radiation on Polarization Mode Dispersion of Fibers Applied in Communications" in Nuclear technology and radiation protection, 27, no. 2 (2012):171-177,
https://doi.org/10.2298/NTRP1202171S . .
1
2
2

Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components

Pantelic, Sladjana N.; Borna, Nadezda V.; Sreckovic, Milesa Z.; Kovacevic, Aleksander G.; Bugarinović, Aleksandar R.; Kovačević, Milojko; Lazarević, Đorđe R.

(2011)

TY  - JOUR
AU  - Pantelic, Sladjana N.
AU  - Borna, Nadezda V.
AU  - Sreckovic, Milesa Z.
AU  - Kovacevic, Aleksander G.
AU  - Bugarinović, Aleksandar R.
AU  - Kovačević, Milojko
AU  - Lazarević, Đorđe R.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4296
AB  - The influence of nuclear radiation and particles has been the object of investigation for a long time. For new materials and systems the research should be continued. Human activities in various environments, including space, call for more detailed research. The role of fibers in contemporary communications, medicine, and industry increases. Fibers, their connections and fused optics components have one type of tasks - the transmission of information and power. The other type of tasks is reserved for fiber lasers: quantum generators and amplifiers. The third type of tasks is for fiber sensors, including high energy nuclear physics. In this paper we present some chosen topics in the mentioned areas as well as our experiments with nuclear radiation and laser beams to fiber and bulk materials of various nature (glass, polymer, metallic, etc.).
T2  - Nuclear technology and radiation protection
T1  - Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components
VL  - 26
IS  - 1
SP  - 32
EP  - 38
DO  - 10.2298/NTRP1101032P
ER  - 
@article{
author = "Pantelic, Sladjana N. and Borna, Nadezda V. and Sreckovic, Milesa Z. and Kovacevic, Aleksander G. and Bugarinović, Aleksandar R. and Kovačević, Milojko and Lazarević, Đorđe R.",
year = "2011",
abstract = "The influence of nuclear radiation and particles has been the object of investigation for a long time. For new materials and systems the research should be continued. Human activities in various environments, including space, call for more detailed research. The role of fibers in contemporary communications, medicine, and industry increases. Fibers, their connections and fused optics components have one type of tasks - the transmission of information and power. The other type of tasks is reserved for fiber lasers: quantum generators and amplifiers. The third type of tasks is for fiber sensors, including high energy nuclear physics. In this paper we present some chosen topics in the mentioned areas as well as our experiments with nuclear radiation and laser beams to fiber and bulk materials of various nature (glass, polymer, metallic, etc.).",
journal = "Nuclear technology and radiation protection",
title = "Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components",
volume = "26",
number = "1",
pages = "32-38",
doi = "10.2298/NTRP1101032P"
}
Pantelic, S. N., Borna, N. V., Sreckovic, M. Z., Kovacevic, A. G., Bugarinović, A. R., Kovačević, M.,& Lazarević, Đ. R.. (2011). Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components. in Nuclear technology and radiation protection, 26(1), 32-38.
https://doi.org/10.2298/NTRP1101032P
Pantelic SN, Borna NV, Sreckovic MZ, Kovacevic AG, Bugarinović AR, Kovačević M, Lazarević ĐR. Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components. in Nuclear technology and radiation protection. 2011;26(1):32-38.
doi:10.2298/NTRP1101032P .
Pantelic, Sladjana N., Borna, Nadezda V., Sreckovic, Milesa Z., Kovacevic, Aleksander G., Bugarinović, Aleksandar R., Kovačević, Milojko, Lazarević, Đorđe R., "Influence of Nuclear Radiation and Laser Beams on Optical Fibers and Components" in Nuclear technology and radiation protection, 26, no. 1 (2011):32-38,
https://doi.org/10.2298/NTRP1101032P . .
3
3

Indoor radon measurements in Kosovo and Metohija over the period 1995-2007

Milic, Gordana; Yarmoshenko, Ilia V.; Jakupi, Bajram; Kovačević, Milojko; Žunić, Zora S.

(2011)

TY  - JOUR
AU  - Milic, Gordana
AU  - Yarmoshenko, Ilia V.
AU  - Jakupi, Bajram
AU  - Kovačević, Milojko
AU  - Žunić, Zora S.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4198
AB  - The paper deals with the results of the investigations of indoor radon measurements in more than 300 rural and urban dwellings in Kosovo and Metohija. All measurements were carried out using CR-39 solid State nuclear track detectors by similar protocols and within two series in 1990-s and in 2000-s, in 34 settlements divided by 9 regions, thus covering significant part of Kosovo. For most of measured points the adjustment for seasonal variation was necessary and had been conducted. Highest average values of indoor radon concentrations were found in rural settlements of Lipljan and Vitina regions, 512 and 452 Bq/m(3), respectively. Combined analysis allows indoor radon concentration of 220 Bq/m(3) to be suggested as representative estimate for Kosovo, while additional data appear. Observed pattern of indoor radon seasonal variation and difference of radon levels between ground and upper floors suggest soil radon as primary source of indoor radon and significance of convection type radon entry. (C) 2010 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - Indoor radon measurements in Kosovo and Metohija over the period 1995-2007
VL  - 46
IS  - 1
SP  - 141
EP  - 144
DO  - 10.1016/j.radmeas.2010.07.020
ER  - 
@article{
author = "Milic, Gordana and Yarmoshenko, Ilia V. and Jakupi, Bajram and Kovačević, Milojko and Žunić, Zora S.",
year = "2011",
abstract = "The paper deals with the results of the investigations of indoor radon measurements in more than 300 rural and urban dwellings in Kosovo and Metohija. All measurements were carried out using CR-39 solid State nuclear track detectors by similar protocols and within two series in 1990-s and in 2000-s, in 34 settlements divided by 9 regions, thus covering significant part of Kosovo. For most of measured points the adjustment for seasonal variation was necessary and had been conducted. Highest average values of indoor radon concentrations were found in rural settlements of Lipljan and Vitina regions, 512 and 452 Bq/m(3), respectively. Combined analysis allows indoor radon concentration of 220 Bq/m(3) to be suggested as representative estimate for Kosovo, while additional data appear. Observed pattern of indoor radon seasonal variation and difference of radon levels between ground and upper floors suggest soil radon as primary source of indoor radon and significance of convection type radon entry. (C) 2010 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "Indoor radon measurements in Kosovo and Metohija over the period 1995-2007",
volume = "46",
number = "1",
pages = "141-144",
doi = "10.1016/j.radmeas.2010.07.020"
}
Milic, G., Yarmoshenko, I. V., Jakupi, B., Kovačević, M.,& Žunić, Z. S.. (2011). Indoor radon measurements in Kosovo and Metohija over the period 1995-2007. in Radiation Measurements, 46(1), 141-144.
https://doi.org/10.1016/j.radmeas.2010.07.020
Milic G, Yarmoshenko IV, Jakupi B, Kovačević M, Žunić ZS. Indoor radon measurements in Kosovo and Metohija over the period 1995-2007. in Radiation Measurements. 2011;46(1):141-144.
doi:10.1016/j.radmeas.2010.07.020 .
Milic, Gordana, Yarmoshenko, Ilia V., Jakupi, Bajram, Kovačević, Milojko, Žunić, Zora S., "Indoor radon measurements in Kosovo and Metohija over the period 1995-2007" in Radiation Measurements, 46, no. 1 (2011):141-144,
https://doi.org/10.1016/j.radmeas.2010.07.020 . .
3
5
4

Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy

Petrović, Nina; Krestic-Vesovic, Jelena; Stojanovic, Darko; Ciraj-Bjelac, Olivera; Lazarević, Đorđe R.; Kovačević, Milojko

(2011)

TY  - JOUR
AU  - Petrović, Nina
AU  - Krestic-Vesovic, Jelena
AU  - Stojanovic, Darko
AU  - Ciraj-Bjelac, Olivera
AU  - Lazarević, Đorđe R.
AU  - Kovačević, Milojko
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4224
AB  - When high-energy photon beams are used for irradiation in radiotherapy, neutrons that are the result of photonuclear reactions create activation products that affect the occupational dose of radiotherapy staff. For the assessment of activation products in situ gamma spectroscopy was performed parallel to dose-rate measurements following irradiation, by using a high-energy photon beam from a linear accelerator Elekta Precise (Elekta, Stockholm, Sweden) used in radiotherapy. The major identified activation products were the following radioisotopes: (28)Al, (24)Na, (56)Mn, (54)Mn, (187)W, (64)Cu and (62)Cu. Based on the typical workload and dose-rate measurement, the assessed additional annual occupational dose ranged from 1.7 to 0.25 mSv. As the measured dose rate arising from the activation products rapidly decreases as a function of time, the assessed additional dose is negligible after 10 min following irradiation. To keep the occupational dose as low as reasonably achievable, it is recommended to delay entrance to the therapy room at least 2-4 min, when high-energy photons are used. This would reduce the effective dose by 30 %.
T2  - Radiation Protection Dosimetry
T1  - Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy
VL  - 143
IS  - 1
SP  - 109
EP  - 112
DO  - 10.1093/rpd/ncq290
ER  - 
@article{
author = "Petrović, Nina and Krestic-Vesovic, Jelena and Stojanovic, Darko and Ciraj-Bjelac, Olivera and Lazarević, Đorđe R. and Kovačević, Milojko",
year = "2011",
abstract = "When high-energy photon beams are used for irradiation in radiotherapy, neutrons that are the result of photonuclear reactions create activation products that affect the occupational dose of radiotherapy staff. For the assessment of activation products in situ gamma spectroscopy was performed parallel to dose-rate measurements following irradiation, by using a high-energy photon beam from a linear accelerator Elekta Precise (Elekta, Stockholm, Sweden) used in radiotherapy. The major identified activation products were the following radioisotopes: (28)Al, (24)Na, (56)Mn, (54)Mn, (187)W, (64)Cu and (62)Cu. Based on the typical workload and dose-rate measurement, the assessed additional annual occupational dose ranged from 1.7 to 0.25 mSv. As the measured dose rate arising from the activation products rapidly decreases as a function of time, the assessed additional dose is negligible after 10 min following irradiation. To keep the occupational dose as low as reasonably achievable, it is recommended to delay entrance to the therapy room at least 2-4 min, when high-energy photons are used. This would reduce the effective dose by 30 %.",
journal = "Radiation Protection Dosimetry",
title = "Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy",
volume = "143",
number = "1",
pages = "109-112",
doi = "10.1093/rpd/ncq290"
}
Petrović, N., Krestic-Vesovic, J., Stojanovic, D., Ciraj-Bjelac, O., Lazarević, Đ. R.,& Kovačević, M.. (2011). Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy. in Radiation Protection Dosimetry, 143(1), 109-112.
https://doi.org/10.1093/rpd/ncq290
Petrović N, Krestic-Vesovic J, Stojanovic D, Ciraj-Bjelac O, Lazarević ĐR, Kovačević M. Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy. in Radiation Protection Dosimetry. 2011;143(1):109-112.
doi:10.1093/rpd/ncq290 .
Petrović, Nina, Krestic-Vesovic, Jelena, Stojanovic, Darko, Ciraj-Bjelac, Olivera, Lazarević, Đorđe R., Kovačević, Milojko, "Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy" in Radiation Protection Dosimetry, 143, no. 1 (2011):109-112,
https://doi.org/10.1093/rpd/ncq290 . .
5
4
5

The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si)

Ristic, Goran S.; Vasovic, Nikola D.; Kovačević, Milojko; Jaksic, Aleksandar B.

(2011)

TY  - JOUR
AU  - Ristic, Goran S.
AU  - Vasovic, Nikola D.
AU  - Kovačević, Milojko
AU  - Jaksic, Aleksandar B.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4608
AB  - The RADFETs (pMOS dosimeters) were irradiated by ionizing radiation from Co-60 gamma-ray source to dose of 230 Gy(Si) without gate bias, and their reproducibility and sensitivity to radiation were investigated. The completely automatic system containing switching matrix have been used, enabling very reliable measurements of RADFET electrical characteristics. Two sample types from each RADFET chip, with the same gate oxide thickness, but different geometry (channel width and length), were investigated. The samples have shown good reproducibility of the threshold voltage shift during irradiation, i.e., the radiation sensitivity was similar for all samples. Using MG and CP techniques, it has been shown that the slow switching (border) trap density is negligible, but the fixed trap density saturates and the fast switching trap density is linear. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si)
VL  - 269
IS  - 23
SP  - 2703
EP  - 2708
DO  - 10.1016/j.nimb.2011.08.015
ER  - 
@article{
author = "Ristic, Goran S. and Vasovic, Nikola D. and Kovačević, Milojko and Jaksic, Aleksandar B.",
year = "2011",
abstract = "The RADFETs (pMOS dosimeters) were irradiated by ionizing radiation from Co-60 gamma-ray source to dose of 230 Gy(Si) without gate bias, and their reproducibility and sensitivity to radiation were investigated. The completely automatic system containing switching matrix have been used, enabling very reliable measurements of RADFET electrical characteristics. Two sample types from each RADFET chip, with the same gate oxide thickness, but different geometry (channel width and length), were investigated. The samples have shown good reproducibility of the threshold voltage shift during irradiation, i.e., the radiation sensitivity was similar for all samples. Using MG and CP techniques, it has been shown that the slow switching (border) trap density is negligible, but the fixed trap density saturates and the fast switching trap density is linear. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si)",
volume = "269",
number = "23",
pages = "2703-2708",
doi = "10.1016/j.nimb.2011.08.015"
}
Ristic, G. S., Vasovic, N. D., Kovačević, M.,& Jaksic, A. B.. (2011). The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si). in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(23), 2703-2708.
https://doi.org/10.1016/j.nimb.2011.08.015
Ristic GS, Vasovic ND, Kovačević M, Jaksic AB. The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si). in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(23):2703-2708.
doi:10.1016/j.nimb.2011.08.015 .
Ristic, Goran S., Vasovic, Nikola D., Kovačević, Milojko, Jaksic, Aleksandar B., "The sensitivity of 100 nm RADFETs with zero gate bias up to dose of 230 Gy(Si)" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 23 (2011):2703-2708,
https://doi.org/10.1016/j.nimb.2011.08.015 . .
34
27
33

Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients

Ciraj-Bjelac, Olivera; Beciric, Snezana; Aranđić, Danijela; Košutić, Duško D.; Kovačević, Milojko

(2010)

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Beciric, Snezana
AU  - Aranđić, Danijela
AU  - Košutić, Duško D.
AU  - Kovačević, Milojko
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4057
AB  - The primary objective of this study is to investigate the actual mammography dose levels in Serbia and establish a baseline dose database for the future screening programme. The mean glandular dose (MGD) was assessed for standard size breast substituted by 45 mm polymethyl methacrylate (PMMA) phantom and imaged under typical clinical conditions at 30 screen-film mammography facilities. Average MGD was (1.9 +/- 1.0) mGy, with a range of 0.12-5.2 mGy. These results were used for the calculation of the initial diagnostic reference levels in mammography in Serbia, which was set to 2.1 mGy for a standard breast. At some facilities, high doses were observed and the assessed MGD was supplemented by a patient dose survey. MGD was measured for 53 women having a diagnostic mammography in cranio-caudal (CC) and mediolateral oblique (MLO) projections at the largest mammography facilities in Serbia. The parameters recorded were: age, compressed breast thickness, tube potential (in kV), tube loading (in mAs) and the MLO projection angle. The average MGD per image was 2.8 mGy for the CC projection and 4.3 mGy for the MW projection. Dose to breast was compared with dose for PMMA phantoms of various sizes, assessed at the same facilities. The results have indicated that phantom dose values can assist in setting optimisation activities in mammography. Both phantom and patient dose values indicated unnecessary high doses in facilities with an extremely high mammography workload. For these facilities, urgent dose-reduction measures and follow-up actions were recommended.
T2  - Radiation Protection Dosimetry
T1  - Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients
VL  - 140
IS  - 1
SP  - 75
EP  - 80
DO  - 10.1093/rpd/ncq040
ER  - 
@article{
author = "Ciraj-Bjelac, Olivera and Beciric, Snezana and Aranđić, Danijela and Košutić, Duško D. and Kovačević, Milojko",
year = "2010",
abstract = "The primary objective of this study is to investigate the actual mammography dose levels in Serbia and establish a baseline dose database for the future screening programme. The mean glandular dose (MGD) was assessed for standard size breast substituted by 45 mm polymethyl methacrylate (PMMA) phantom and imaged under typical clinical conditions at 30 screen-film mammography facilities. Average MGD was (1.9 +/- 1.0) mGy, with a range of 0.12-5.2 mGy. These results were used for the calculation of the initial diagnostic reference levels in mammography in Serbia, which was set to 2.1 mGy for a standard breast. At some facilities, high doses were observed and the assessed MGD was supplemented by a patient dose survey. MGD was measured for 53 women having a diagnostic mammography in cranio-caudal (CC) and mediolateral oblique (MLO) projections at the largest mammography facilities in Serbia. The parameters recorded were: age, compressed breast thickness, tube potential (in kV), tube loading (in mAs) and the MLO projection angle. The average MGD per image was 2.8 mGy for the CC projection and 4.3 mGy for the MW projection. Dose to breast was compared with dose for PMMA phantoms of various sizes, assessed at the same facilities. The results have indicated that phantom dose values can assist in setting optimisation activities in mammography. Both phantom and patient dose values indicated unnecessary high doses in facilities with an extremely high mammography workload. For these facilities, urgent dose-reduction measures and follow-up actions were recommended.",
journal = "Radiation Protection Dosimetry",
title = "Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients",
volume = "140",
number = "1",
pages = "75-80",
doi = "10.1093/rpd/ncq040"
}
Ciraj-Bjelac, O., Beciric, S., Aranđić, D., Košutić, D. D.,& Kovačević, M.. (2010). Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients. in Radiation Protection Dosimetry, 140(1), 75-80.
https://doi.org/10.1093/rpd/ncq040
Ciraj-Bjelac O, Beciric S, Aranđić D, Košutić DD, Kovačević M. Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients. in Radiation Protection Dosimetry. 2010;140(1):75-80.
doi:10.1093/rpd/ncq040 .
Ciraj-Bjelac, Olivera, Beciric, Snezana, Aranđić, Danijela, Košutić, Duško D., Kovačević, Milojko, "Mammography Radiation Dose: Initial Results from Serbia Based on Mean Glandular Dose Assessment for Phantoms and Patients" in Radiation Protection Dosimetry, 140, no. 1 (2010):75-80,
https://doi.org/10.1093/rpd/ncq040 . .
12
16
18

A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study

Ciraj-Bjelac, Olivera; Kovačević, Milojko; Košutić, Duško D.; Aranđić, Danijela; Lazarević, Đorđe R.

(2010)

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Kovačević, Milojko
AU  - Košutić, Duško D.
AU  - Aranđić, Danijela
AU  - Lazarević, Đorđe R.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4114
AB  - An overview of radiological incident involving radiation source from a lightning rod ((152)Eu/(154)Eu), together with dose estimation for individuals exposed to ionising radiation is given in the paper. The cause of the incident was an orphaned source from a lightning rod. The dose received by individuals was assessed using a retrospective dosimetry technique, based on the information on behaviour of individuals and results of dose rate measurements in the vicinity of the source. Several people have been exposed to relatively high dose rates for an extended period of time. The conservatively estimated cumulative dose values for two categories of individuals were 50 and 40 mSv, respectively, which are significantly higher than annual dose limit for public exposure of 1 mSv. The need to identify radioactive sources incorporated in radioactive lightning rods, to maintain control and accountability and to remove and dispose of them properly along with appropriate record keeping in Serbia was highlighted. These activities would reduce the probability of occurrence of radiation incidents in Serbia.
T2  - Radiation Protection Dosimetry
T1  - A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study
VL  - 141
IS  - 3
SP  - 309
EP  - 314
DO  - 10.1093/rpd/ncq178
ER  - 
@article{
author = "Ciraj-Bjelac, Olivera and Kovačević, Milojko and Košutić, Duško D. and Aranđić, Danijela and Lazarević, Đorđe R.",
year = "2010",
abstract = "An overview of radiological incident involving radiation source from a lightning rod ((152)Eu/(154)Eu), together with dose estimation for individuals exposed to ionising radiation is given in the paper. The cause of the incident was an orphaned source from a lightning rod. The dose received by individuals was assessed using a retrospective dosimetry technique, based on the information on behaviour of individuals and results of dose rate measurements in the vicinity of the source. Several people have been exposed to relatively high dose rates for an extended period of time. The conservatively estimated cumulative dose values for two categories of individuals were 50 and 40 mSv, respectively, which are significantly higher than annual dose limit for public exposure of 1 mSv. The need to identify radioactive sources incorporated in radioactive lightning rods, to maintain control and accountability and to remove and dispose of them properly along with appropriate record keeping in Serbia was highlighted. These activities would reduce the probability of occurrence of radiation incidents in Serbia.",
journal = "Radiation Protection Dosimetry",
title = "A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study",
volume = "141",
number = "3",
pages = "309-314",
doi = "10.1093/rpd/ncq178"
}
Ciraj-Bjelac, O., Kovačević, M., Košutić, D. D., Aranđić, D.,& Lazarević, Đ. R.. (2010). A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study. in Radiation Protection Dosimetry, 141(3), 309-314.
https://doi.org/10.1093/rpd/ncq178
Ciraj-Bjelac O, Kovačević M, Košutić DD, Aranđić D, Lazarević ĐR. A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study. in Radiation Protection Dosimetry. 2010;141(3):309-314.
doi:10.1093/rpd/ncq178 .
Ciraj-Bjelac, Olivera, Kovačević, Milojko, Košutić, Duško D., Aranđić, Danijela, Lazarević, Đorđe R., "A radiological incident with a radioactive lightning rod source found in a vehicle used by film crewmembers: a case study" in Radiation Protection Dosimetry, 141, no. 3 (2010):309-314,
https://doi.org/10.1093/rpd/ncq178 . .
1
2
2
2

Radiation Absorption Characteristics of Titanium Alloys

Stanković, Srboljub J.; Ilic, R. D.; Davidovic, D. M.; Petrović, Milica S.; Tadić, Srđan; Kovačević, Milojko

(2009)

TY  - JOUR
AU  - Stanković, Srboljub J.
AU  - Ilic, R. D.
AU  - Davidovic, D. M.
AU  - Petrović, Milica S.
AU  - Tadić, Srđan
AU  - Kovačević, Milojko
PY  - 2009
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6798
AB  - Titanium alloys have found numerous applications in space research, and nuclear industry and research. Since X-rays constitute an important part of the space radiation environment, numerical simulations of radiation absorption characteristics of titanium alloys were studied in this paper. The photon transport Monte Carlo software was used for determining the energy deposited in titanium samples. The numerical results show the pronounced dependence of radiation absorption properties of different combinations of components in alloy. The results obtained are encouraging in respect of optimization of structure of alloys regarding their required features in radiation shielding.
T2  - Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics
T1  - Radiation Absorption Characteristics of Titanium Alloys
VL  - 115
IS  - 4
SP  - 820
EP  - 822
DO  - 10.12693/APhysPolA.115.820
ER  - 
@article{
author = "Stanković, Srboljub J. and Ilic, R. D. and Davidovic, D. M. and Petrović, Milica S. and Tadić, Srđan and Kovačević, Milojko",
year = "2009",
abstract = "Titanium alloys have found numerous applications in space research, and nuclear industry and research. Since X-rays constitute an important part of the space radiation environment, numerical simulations of radiation absorption characteristics of titanium alloys were studied in this paper. The photon transport Monte Carlo software was used for determining the energy deposited in titanium samples. The numerical results show the pronounced dependence of radiation absorption properties of different combinations of components in alloy. The results obtained are encouraging in respect of optimization of structure of alloys regarding their required features in radiation shielding.",
journal = "Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics",
title = "Radiation Absorption Characteristics of Titanium Alloys",
volume = "115",
number = "4",
pages = "820-822",
doi = "10.12693/APhysPolA.115.820"
}
Stanković, S. J., Ilic, R. D., Davidovic, D. M., Petrović, M. S., Tadić, S.,& Kovačević, M.. (2009). Radiation Absorption Characteristics of Titanium Alloys. in Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 115(4), 820-822.
https://doi.org/10.12693/APhysPolA.115.820
Stanković SJ, Ilic RD, Davidovic DM, Petrović MS, Tadić S, Kovačević M. Radiation Absorption Characteristics of Titanium Alloys. in Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics. 2009;115(4):820-822.
doi:10.12693/APhysPolA.115.820 .
Stanković, Srboljub J., Ilic, R. D., Davidovic, D. M., Petrović, Milica S., Tadić, Srđan, Kovačević, Milojko, "Radiation Absorption Characteristics of Titanium Alloys" in Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 115, no. 4 (2009):820-822,
https://doi.org/10.12693/APhysPolA.115.820 . .
1
1

Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation

Stanković, Srboljub J.; Ilic, Radovan D.; Davidović, Miloš D.; Kovačević, Milojko; Davidovic, Dragomir

(2008)

TY  - JOUR
AU  - Stanković, Srboljub J.
AU  - Ilic, Radovan D.
AU  - Davidović, Miloš D.
AU  - Kovačević, Milojko
AU  - Davidovic, Dragomir
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3541
AB  - Radiation sensing MOSFETs (RADFETs) have found numerous applications in space research, as well as in nuclear technology and research, and radiotherapy. Since proton irradiation is an essential part of the space radiation environment, it is important to know RADFET proton response precisely. In this work a numerical simulation of RADFET proton response is performed. To this end the proton transport Monte Carlo software SRNA-2K5, developed by one of the authors, has been adapted to obtain the energy deposited in the RADFET structure and dose distribution within the microscopic dimensions of the dosimeter sensitive volume. Our results show that RADFET response to proton irradiation depends significantly of packaging configurations with kovar lid.
T2  - Nuclear technology and radiation protection
T1  - Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation
VL  - 23
IS  - 1
SP  - 37
EP  - 40
DO  - 10.2298/NTRP0801037S
ER  - 
@article{
author = "Stanković, Srboljub J. and Ilic, Radovan D. and Davidović, Miloš D. and Kovačević, Milojko and Davidovic, Dragomir",
year = "2008",
abstract = "Radiation sensing MOSFETs (RADFETs) have found numerous applications in space research, as well as in nuclear technology and research, and radiotherapy. Since proton irradiation is an essential part of the space radiation environment, it is important to know RADFET proton response precisely. In this work a numerical simulation of RADFET proton response is performed. To this end the proton transport Monte Carlo software SRNA-2K5, developed by one of the authors, has been adapted to obtain the energy deposited in the RADFET structure and dose distribution within the microscopic dimensions of the dosimeter sensitive volume. Our results show that RADFET response to proton irradiation depends significantly of packaging configurations with kovar lid.",
journal = "Nuclear technology and radiation protection",
title = "Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation",
volume = "23",
number = "1",
pages = "37-40",
doi = "10.2298/NTRP0801037S"
}
Stanković, S. J., Ilic, R. D., Davidović, M. D., Kovačević, M.,& Davidovic, D.. (2008). Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation. in Nuclear technology and radiation protection, 23(1), 37-40.
https://doi.org/10.2298/NTRP0801037S
Stanković SJ, Ilic RD, Davidović MD, Kovačević M, Davidovic D. Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation. in Nuclear technology and radiation protection. 2008;23(1):37-40.
doi:10.2298/NTRP0801037S .
Stanković, Srboljub J., Ilic, Radovan D., Davidović, Miloš D., Kovačević, Milojko, Davidovic, Dragomir, "Influence of Packaging Configuration with Kovar Lid on Radfet Response to Proton Irradiation" in Nuclear technology and radiation protection, 23, no. 1 (2008):37-40,
https://doi.org/10.2298/NTRP0801037S . .
5
5
4

Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy

Ateia, Embarka; Ciraj-Bjelac, Olivera; Kovačević, Milojko; Beličev, Petar; Cvetković, Bratislav; Aničin, Ivan V.

(2008)

TY  - JOUR
AU  - Ateia, Embarka
AU  - Ciraj-Bjelac, Olivera
AU  - Kovačević, Milojko
AU  - Beličev, Petar
AU  - Cvetković, Bratislav
AU  - Aničin, Ivan V.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3244
AB  - It is well known that medical linear accelerators generate activation products when operated above certain electron (photon) energies. The aim of the present work is to assess the activation behavior of a medium-energy radiotherapy linear accelerator by applying in situ gamma-ray spectrometry and dose measurements, and to estimate the additional dose to radiotherapy staff on the basis of these results. Spectral analysis was performed parallel to dose rate measurements in the isocenter of the linear accelerator, immediately after the termination of irradiation. The following radioisotopes were detected by spectral analysis: (28)Al, (62)Cu, (56)Mn, (64)Cu, (187)W, and (57)Ni. The short-lived isotopes such as (28)Al and (62)Cu are the most important factors of the clinical routine, while the contribution to the radiation dose of medium-lived isotopes such as (56)Mn, (57)Ni, (64)Cu, and (187)W increases during the working day. Measured dose rates at the isocenter ranged from 2.2 mu Sv/h to 10 mu Sv/h in various measuring points of interest for the members of the radiotherapy staff. Within the period of 10 minutes, the dose rate decreased to values of 0.8 mu Sv/h. According to actual workloads in radiotherapy departments, a realistic exposure scenario was set, resulting in a maximal additional annual whole body dose to the radiotherapy staff of about 3.5 mSv.
T2  - Nuclear technology and radiation protection
T1  - Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy
VL  - 23
IS  - 2
SP  - 58
EP  - 64
DO  - 10.2298/NTRP0802058A
ER  - 
@article{
author = "Ateia, Embarka and Ciraj-Bjelac, Olivera and Kovačević, Milojko and Beličev, Petar and Cvetković, Bratislav and Aničin, Ivan V.",
year = "2008",
abstract = "It is well known that medical linear accelerators generate activation products when operated above certain electron (photon) energies. The aim of the present work is to assess the activation behavior of a medium-energy radiotherapy linear accelerator by applying in situ gamma-ray spectrometry and dose measurements, and to estimate the additional dose to radiotherapy staff on the basis of these results. Spectral analysis was performed parallel to dose rate measurements in the isocenter of the linear accelerator, immediately after the termination of irradiation. The following radioisotopes were detected by spectral analysis: (28)Al, (62)Cu, (56)Mn, (64)Cu, (187)W, and (57)Ni. The short-lived isotopes such as (28)Al and (62)Cu are the most important factors of the clinical routine, while the contribution to the radiation dose of medium-lived isotopes such as (56)Mn, (57)Ni, (64)Cu, and (187)W increases during the working day. Measured dose rates at the isocenter ranged from 2.2 mu Sv/h to 10 mu Sv/h in various measuring points of interest for the members of the radiotherapy staff. Within the period of 10 minutes, the dose rate decreased to values of 0.8 mu Sv/h. According to actual workloads in radiotherapy departments, a realistic exposure scenario was set, resulting in a maximal additional annual whole body dose to the radiotherapy staff of about 3.5 mSv.",
journal = "Nuclear technology and radiation protection",
title = "Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy",
volume = "23",
number = "2",
pages = "58-64",
doi = "10.2298/NTRP0802058A"
}
Ateia, E., Ciraj-Bjelac, O., Kovačević, M., Beličev, P., Cvetković, B.,& Aničin, I. V.. (2008). Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy. in Nuclear technology and radiation protection, 23(2), 58-64.
https://doi.org/10.2298/NTRP0802058A
Ateia E, Ciraj-Bjelac O, Kovačević M, Beličev P, Cvetković B, Aničin IV. Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy. in Nuclear technology and radiation protection. 2008;23(2):58-64.
doi:10.2298/NTRP0802058A .
Ateia, Embarka, Ciraj-Bjelac, Olivera, Kovačević, Milojko, Beličev, Petar, Cvetković, Bratislav, Aničin, Ivan V., "Additional Dose Assessment from the Activation of High-Energy Linear Accelerators Used in Radiation Therapy" in Nuclear technology and radiation protection, 23, no. 2 (2008):58-64,
https://doi.org/10.2298/NTRP0802058A . .
5
6
7

Characterization of target material for x-ray generator by Monte Carlo method

Stanković, Srboljub J.; llic, R. D.; Ciraj-Bjelac, Olivera; Kovačević, Milojko; Davidovic, D.

(2007)

TY  - CONF
AU  - Stanković, Srboljub J.
AU  - llic, R. D.
AU  - Ciraj-Bjelac, Olivera
AU  - Kovačević, Milojko
AU  - Davidovic, D.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6680
AB  - The adequate choice of different target materials for X-ray generators is a very important subject of engineers practice and research. In the present work we analyze theoretically the transport of electrons through the anode material and the production of the corresponding bremsstrahlung radiation. In our analysis we simulate the particle transport with the help of the FOTELP code, which is based on the Monte Carlo simulation. Our main aim is to develop an efficient and handy method, which could be helpful in improving the design of the X-ray tube components and in reducing of the patient dose, while keeping the image quality. The obtained results are encouraging.
C3  - Materials Science Forum
T1  - Characterization of target material for x-ray generator by Monte Carlo method
VL  - 555
SP  - 137
EP  - +
DO  - 10.4028/www.scientific.net/MSF.555.137
ER  - 
@conference{
author = "Stanković, Srboljub J. and llic, R. D. and Ciraj-Bjelac, Olivera and Kovačević, Milojko and Davidovic, D.",
year = "2007",
abstract = "The adequate choice of different target materials for X-ray generators is a very important subject of engineers practice and research. In the present work we analyze theoretically the transport of electrons through the anode material and the production of the corresponding bremsstrahlung radiation. In our analysis we simulate the particle transport with the help of the FOTELP code, which is based on the Monte Carlo simulation. Our main aim is to develop an efficient and handy method, which could be helpful in improving the design of the X-ray tube components and in reducing of the patient dose, while keeping the image quality. The obtained results are encouraging.",
journal = "Materials Science Forum",
title = "Characterization of target material for x-ray generator by Monte Carlo method",
volume = "555",
pages = "137-+",
doi = "10.4028/www.scientific.net/MSF.555.137"
}
Stanković, S. J., llic, R. D., Ciraj-Bjelac, O., Kovačević, M.,& Davidovic, D.. (2007). Characterization of target material for x-ray generator by Monte Carlo method. in Materials Science Forum, 555, 137-+.
https://doi.org/10.4028/www.scientific.net/MSF.555.137
Stanković SJ, llic RD, Ciraj-Bjelac O, Kovačević M, Davidovic D. Characterization of target material for x-ray generator by Monte Carlo method. in Materials Science Forum. 2007;555:137-+.
doi:10.4028/www.scientific.net/MSF.555.137 .
Stanković, Srboljub J., llic, R. D., Ciraj-Bjelac, Olivera, Kovačević, Milojko, Davidovic, D., "Characterization of target material for x-ray generator by Monte Carlo method" in Materials Science Forum, 555 (2007):137-+,
https://doi.org/10.4028/www.scientific.net/MSF.555.137 . .

Monte Carlo calculation of x-rays deposited energy in CdZnTe detector

Stanković, Srboljub J.; Petrović, Milica S.; Kovačević, Milojko; Vasić, Aleksandra; Osmokrovic, P.; Lončar, Boris B.

(2007)

TY  - CONF
AU  - Stanković, Srboljub J.
AU  - Petrović, Milica S.
AU  - Kovačević, Milojko
AU  - Vasić, Aleksandra
AU  - Osmokrovic, P.
AU  - Lončar, Boris B.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6681
AB  - CdZnTe detectors have been employed in diagnostic X-ray spectroscopy. This paper presents the Monte Carlo calculation of X-ray deposited energy in a CdZnTe detector for different energies of photon beam. In incident photon direction, the distribution of absorbed dose as deposited energy in detector is determined, Based on the dependence of the detector response on the thickness and different Zn fractions, some conclusions about changes of the material characteristics could be drawn. Results of numerical simulation suggest that the CdZnTe detector could be suitable for X-ray low energy.
C3  - Materials Science Forum
T1  - Monte Carlo calculation of x-rays deposited energy in CdZnTe detector
VL  - 555
SP  - 141
EP  - +
DO  - 10.4028/www.scientific.net/MSF.555.141
ER  - 
@conference{
author = "Stanković, Srboljub J. and Petrović, Milica S. and Kovačević, Milojko and Vasić, Aleksandra and Osmokrovic, P. and Lončar, Boris B.",
year = "2007",
abstract = "CdZnTe detectors have been employed in diagnostic X-ray spectroscopy. This paper presents the Monte Carlo calculation of X-ray deposited energy in a CdZnTe detector for different energies of photon beam. In incident photon direction, the distribution of absorbed dose as deposited energy in detector is determined, Based on the dependence of the detector response on the thickness and different Zn fractions, some conclusions about changes of the material characteristics could be drawn. Results of numerical simulation suggest that the CdZnTe detector could be suitable for X-ray low energy.",
journal = "Materials Science Forum",
title = "Monte Carlo calculation of x-rays deposited energy in CdZnTe detector",
volume = "555",
pages = "141-+",
doi = "10.4028/www.scientific.net/MSF.555.141"
}
Stanković, S. J., Petrović, M. S., Kovačević, M., Vasić, A., Osmokrovic, P.,& Lončar, B. B.. (2007). Monte Carlo calculation of x-rays deposited energy in CdZnTe detector. in Materials Science Forum, 555, 141-+.
https://doi.org/10.4028/www.scientific.net/MSF.555.141
Stanković SJ, Petrović MS, Kovačević M, Vasić A, Osmokrovic P, Lončar BB. Monte Carlo calculation of x-rays deposited energy in CdZnTe detector. in Materials Science Forum. 2007;555:141-+.
doi:10.4028/www.scientific.net/MSF.555.141 .
Stanković, Srboljub J., Petrović, Milica S., Kovačević, Milojko, Vasić, Aleksandra, Osmokrovic, P., Lončar, Boris B., "Monte Carlo calculation of x-rays deposited energy in CdZnTe detector" in Materials Science Forum, 555 (2007):141-+,
https://doi.org/10.4028/www.scientific.net/MSF.555.141 . .
2
2

A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro

Ciraj-Bjelac, Olivera; Košutić, Duško D.; Kovačević, Milojko; Marković, S

(2005)

TY  - JOUR
AU  - Ciraj-Bjelac, Olivera
AU  - Košutić, Duško D.
AU  - Kovačević, Milojko
AU  - Marković, S
PY  - 2005
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3034
AB  - Diagnostic reference levels provide framework to reduce variability. The aim of this study is to establish, for the first time, a baseline for national diagnostic reference levels in Serbia and Montenegro for the most common X-ray examination types. Measurements of patient dose using kerma-area product meter and entrance surface air kerma assessment were performed on at least ten patients for each examination type, in each of 16 randomly selected hospitals in Serbia and Montenegro, so that a total of 3,026 procedures for nine different examination categories were included in the survey. Exposure settings and individual data were recorded for each patient. Mean, median and third quartile values of patient doses are reported. Results have shown wide variation of mean hospital doses, with a factor of four for barium enema to 23 for thoracic spine radiography. Entrance surface air kerma were compared with previously published diagnostic reference levels (DRL) proposed by Commission of European Communities (CEC). Doses for all studied examination types except chest radiography were within European DRL. The reasons for dose variation are discussed. Survey data are aimed to help in development of an on-going national quality assurance and quality control programme in diagnostic radiology. The findings emphasize the importance of regular patient dose measurement to ensure that patient doses are kept as low as reasonable achievable.
T2  - Physica Medica
T1  - A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro
VL  - 21
IS  - 4
SP  - 159
EP  - 163
DO  - 10.1016/S1120-1797(05)80005-5
ER  - 
@article{
author = "Ciraj-Bjelac, Olivera and Košutić, Duško D. and Kovačević, Milojko and Marković, S",
year = "2005",
abstract = "Diagnostic reference levels provide framework to reduce variability. The aim of this study is to establish, for the first time, a baseline for national diagnostic reference levels in Serbia and Montenegro for the most common X-ray examination types. Measurements of patient dose using kerma-area product meter and entrance surface air kerma assessment were performed on at least ten patients for each examination type, in each of 16 randomly selected hospitals in Serbia and Montenegro, so that a total of 3,026 procedures for nine different examination categories were included in the survey. Exposure settings and individual data were recorded for each patient. Mean, median and third quartile values of patient doses are reported. Results have shown wide variation of mean hospital doses, with a factor of four for barium enema to 23 for thoracic spine radiography. Entrance surface air kerma were compared with previously published diagnostic reference levels (DRL) proposed by Commission of European Communities (CEC). Doses for all studied examination types except chest radiography were within European DRL. The reasons for dose variation are discussed. Survey data are aimed to help in development of an on-going national quality assurance and quality control programme in diagnostic radiology. The findings emphasize the importance of regular patient dose measurement to ensure that patient doses are kept as low as reasonable achievable.",
journal = "Physica Medica",
title = "A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro",
volume = "21",
number = "4",
pages = "159-163",
doi = "10.1016/S1120-1797(05)80005-5"
}
Ciraj-Bjelac, O., Košutić, D. D., Kovačević, M.,& Marković, S.. (2005). A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro. in Physica Medica, 21(4), 159-163.
https://doi.org/10.1016/S1120-1797(05)80005-5
Ciraj-Bjelac O, Košutić DD, Kovačević M, Marković S. A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro. in Physica Medica. 2005;21(4):159-163.
doi:10.1016/S1120-1797(05)80005-5 .
Ciraj-Bjelac, Olivera, Košutić, Duško D., Kovačević, Milojko, Marković, S, "A survey of patient doses from conventional diagnostic radiology examinations: first results from Serbia and Montenegro" in Physica Medica, 21, no. 4 (2005):159-163,
https://doi.org/10.1016/S1120-1797(05)80005-5 . .
6
5
6

A way to determine radiation-induced loss in fiber-optic digital communication link

Reljin, I; Reljin, B; Sreckovic, M; Marinovic, A; Kovačević, Milojko; Tomić, Željka

(2005)

TY  - JOUR
AU  - Reljin, I
AU  - Reljin, B
AU  - Sreckovic, M
AU  - Marinovic, A
AU  - Kovačević, Milojko
AU  - Tomić, Željka
PY  - 2005
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2899
AB  - The gamma radiation (Co-60) effect to the PCS fiber-optic in real digital communication link was investigated. The radiation-induced loss were determined by new method, using discrete data obtained by the sampling oscilloscope and processed on the computer, The experimental results confirm the validity of the processing method proposed. (c) 2005 Published by Elsevier Inc.
T2  - Optical Fiber Technology
T1  - A way to determine radiation-induced loss in fiber-optic digital communication link
VL  - 11
IS  - 3
SP  - 286
EP  - 291
DO  - 10.1016/j.yofte.2004.12.001
ER  - 
@article{
author = "Reljin, I and Reljin, B and Sreckovic, M and Marinovic, A and Kovačević, Milojko and Tomić, Željka",
year = "2005",
abstract = "The gamma radiation (Co-60) effect to the PCS fiber-optic in real digital communication link was investigated. The radiation-induced loss were determined by new method, using discrete data obtained by the sampling oscilloscope and processed on the computer, The experimental results confirm the validity of the processing method proposed. (c) 2005 Published by Elsevier Inc.",
journal = "Optical Fiber Technology",
title = "A way to determine radiation-induced loss in fiber-optic digital communication link",
volume = "11",
number = "3",
pages = "286-291",
doi = "10.1016/j.yofte.2004.12.001"
}
Reljin, I., Reljin, B., Sreckovic, M., Marinovic, A., Kovačević, M.,& Tomić, Ž.. (2005). A way to determine radiation-induced loss in fiber-optic digital communication link. in Optical Fiber Technology, 11(3), 286-291.
https://doi.org/10.1016/j.yofte.2004.12.001
Reljin I, Reljin B, Sreckovic M, Marinovic A, Kovačević M, Tomić Ž. A way to determine radiation-induced loss in fiber-optic digital communication link. in Optical Fiber Technology. 2005;11(3):286-291.
doi:10.1016/j.yofte.2004.12.001 .
Reljin, I, Reljin, B, Sreckovic, M, Marinovic, A, Kovačević, Milojko, Tomić, Željka, "A way to determine radiation-induced loss in fiber-optic digital communication link" in Optical Fiber Technology, 11, no. 3 (2005):286-291,
https://doi.org/10.1016/j.yofte.2004.12.001 . .
1
1
1

Depleted uranium in the air during the cleanup operations at Cape Arza

Radenković, Mirjana; Andjelic, T; Kovačević, Milojko; Vukotic, P

(2004)

TY  - JOUR
AU  - Radenković, Mirjana
AU  - Andjelic, T
AU  - Kovačević, Milojko
AU  - Vukotic, P
PY  - 2004
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2859
AB  - Cape Arza was contaminated with depleted uranium (DU) in the air strikes of NATO aeroplanes on May 30,1999. The cleanup and decontamination of the site started in 2001. Here the results of air monitoring performed during the cleanup operations in Spring 2002. are presented. The collected air samples were analyzed by high-resolution alpha spectrometry. The obtained concentrations of airborne uranium are about ten times higher than the average value usually reported for air. The ratio of the U-234/U-238 activities indicates the presence of depleted uranium in the air during the cleanup action, due to resuspension and soil disturbance in the contaminated teritory.
T2  - Journal of the Serbian Chemical Society
T1  - Depleted uranium in the air during the cleanup operations at Cape Arza
VL  - 69
IS  - 12
SP  - 1153
EP  - 1155
DO  - 10.2298/JSC0412153R
ER  - 
@article{
author = "Radenković, Mirjana and Andjelic, T and Kovačević, Milojko and Vukotic, P",
year = "2004",
abstract = "Cape Arza was contaminated with depleted uranium (DU) in the air strikes of NATO aeroplanes on May 30,1999. The cleanup and decontamination of the site started in 2001. Here the results of air monitoring performed during the cleanup operations in Spring 2002. are presented. The collected air samples were analyzed by high-resolution alpha spectrometry. The obtained concentrations of airborne uranium are about ten times higher than the average value usually reported for air. The ratio of the U-234/U-238 activities indicates the presence of depleted uranium in the air during the cleanup action, due to resuspension and soil disturbance in the contaminated teritory.",
journal = "Journal of the Serbian Chemical Society",
title = "Depleted uranium in the air during the cleanup operations at Cape Arza",
volume = "69",
number = "12",
pages = "1153-1155",
doi = "10.2298/JSC0412153R"
}
Radenković, M., Andjelic, T., Kovačević, M.,& Vukotic, P.. (2004). Depleted uranium in the air during the cleanup operations at Cape Arza. in Journal of the Serbian Chemical Society, 69(12), 1153-1155.
https://doi.org/10.2298/JSC0412153R
Radenković M, Andjelic T, Kovačević M, Vukotic P. Depleted uranium in the air during the cleanup operations at Cape Arza. in Journal of the Serbian Chemical Society. 2004;69(12):1153-1155.
doi:10.2298/JSC0412153R .
Radenković, Mirjana, Andjelic, T, Kovačević, Milojko, Vukotic, P, "Depleted uranium in the air during the cleanup operations at Cape Arza" in Journal of the Serbian Chemical Society, 69, no. 12 (2004):1153-1155,
https://doi.org/10.2298/JSC0412153R . .
1
2
4

Metrology and standardization

Bek-Uzarov, D; Zekovic, L; Kovačević, Milojko; Maglic, K; Novković, Dušan N.; Stanković, Dalibor M.

(2002)

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  - http://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
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"
}
Bek-Uzarov, D., Zekovic, L., Kovačević, M., Maglic, K., Novković, D. N.,& Stanković, D. M.. (2002). Metrology and standardization. , 104, 391-432.
Bek-Uzarov D, Zekovic L, Kovačević M, Maglic K, Novković DN, Stanković DM. Metrology and standardization. 2002;104:391-432..
Bek-Uzarov, D, Zekovic, L, Kovačević, Milojko, Maglic, K, Novković, Dušan N., Stanković, Dalibor M., "Metrology and standardization", 104 (2002):391-432.

Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome

Joksić, Gordana; Petrović-Novak, A; Stankovic, M; Kovačević, Milojko

(1999)

TY  - JOUR
AU  - Joksić, Gordana
AU  - Petrović-Novak, A
AU  - Stankovic, M
AU  - Kovačević, Milojko
PY  - 1999
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2233
AB  - The purpose of this study was the estimate the extent of individual variability in radioresponse of human lymphocytes in vitro and to establish the reasons of variability. Individual variability in radiation-response was evaluated using the cytochalasin B micronucleus test among 82 healthy individuals (36 men and 46 women), of mean age 38 (range 30-48). Blood samples were irradiated with gamma (Co-60) ray at a dose of 2 Gy in vitro. The yield of radiation-induced micronuclei (MN), cytochalasin blocked proliferation index (CBPI), fraction of micronucleated binucleate (BN) cells and mean incidence of MN per micronucleated BN cells at a sampling time of 72 hours were scored. Our results brought out a significant effect of gender on the level of spontaneously occurring micronuclei, the lack of statistical differences between gender in the yield of radiation-induced micronuclei and marked variability in radiation response among individuals. Likelihood of expressing hypersensitivity was correlated with ability of cells to proliferate in vitro (beta = 0.41,p LT 0.000) more than with the incidence of radiation-induced micronuclei per micronucleated cell (beta = 0.20, p LT 0.000).
T2  - Neoplasma
T1  - Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome
VL  - 46
IS  - 1
SP  - 40
EP  - 49
ER  - 
@article{
author = "Joksić, Gordana and Petrović-Novak, A and Stankovic, M and Kovačević, Milojko",
year = "1999",
abstract = "The purpose of this study was the estimate the extent of individual variability in radioresponse of human lymphocytes in vitro and to establish the reasons of variability. Individual variability in radiation-response was evaluated using the cytochalasin B micronucleus test among 82 healthy individuals (36 men and 46 women), of mean age 38 (range 30-48). Blood samples were irradiated with gamma (Co-60) ray at a dose of 2 Gy in vitro. The yield of radiation-induced micronuclei (MN), cytochalasin blocked proliferation index (CBPI), fraction of micronucleated binucleate (BN) cells and mean incidence of MN per micronucleated BN cells at a sampling time of 72 hours were scored. Our results brought out a significant effect of gender on the level of spontaneously occurring micronuclei, the lack of statistical differences between gender in the yield of radiation-induced micronuclei and marked variability in radiation response among individuals. Likelihood of expressing hypersensitivity was correlated with ability of cells to proliferate in vitro (beta = 0.41,p LT 0.000) more than with the incidence of radiation-induced micronuclei per micronucleated cell (beta = 0.20, p LT 0.000).",
journal = "Neoplasma",
title = "Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome",
volume = "46",
number = "1",
pages = "40-49"
}
Joksić, G., Petrović-Novak, A., Stankovic, M.,& Kovačević, M.. (1999). Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome. in Neoplasma, 46(1), 40-49.
Joksić G, Petrović-Novak A, Stankovic M, Kovačević M. Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome. in Neoplasma. 1999;46(1):40-49..
Joksić, Gordana, Petrović-Novak, A, Stankovic, M, Kovačević, Milojko, "Radiosensitivity of human lymphocytes in vitro correlates more with proliferative ability of cells than with the incidence of radiation-induced damages of the genome" in Neoplasma, 46, no. 1 (1999):40-49.
10

Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region

Tomljenovic, II; Ninković, Marko M.; Bek-Uzarov, D; Stanković, Srboljub J.; Kovačević, Milojko

(1999)

TY  - JOUR
AU  - Tomljenovic, II
AU  - Ninković, Marko M.
AU  - Bek-Uzarov, D
AU  - Stanković, Srboljub J.
AU  - Kovačević, Milojko
PY  - 1999
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2276
AB  - Experimentally determined values of x-ray backscatter factors are presented in this paper. Measurements were made for x-rays generated at voltages between 60 kV and 300 kV and three water phantoms different in shape and size. To study the influence of the irradiation geometry on the backscatter factors, the measurements were performed for different photon beam held diameters at the phantom front face, at a fixed source-to-phantom distance of 1 m. An ionization chamber of volume 1 cm(3) was used for dose measurement. Measured results are analysed and discussed in comparison with measured and calculated values given in the cited references.
T2  - Physics in Medicine and Biology
T1  - Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region
VL  - 44
IS  - 9
SP  - 2193
EP  - 2200
DO  - 10.1088/0031-9155/44/9/307
ER  - 
@article{
author = "Tomljenovic, II and Ninković, Marko M. and Bek-Uzarov, D and Stanković, Srboljub J. and Kovačević, Milojko",
year = "1999",
abstract = "Experimentally determined values of x-ray backscatter factors are presented in this paper. Measurements were made for x-rays generated at voltages between 60 kV and 300 kV and three water phantoms different in shape and size. To study the influence of the irradiation geometry on the backscatter factors, the measurements were performed for different photon beam held diameters at the phantom front face, at a fixed source-to-phantom distance of 1 m. An ionization chamber of volume 1 cm(3) was used for dose measurement. Measured results are analysed and discussed in comparison with measured and calculated values given in the cited references.",
journal = "Physics in Medicine and Biology",
title = "Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region",
volume = "44",
number = "9",
pages = "2193-2200",
doi = "10.1088/0031-9155/44/9/307"
}
Tomljenovic, I., Ninković, M. M., Bek-Uzarov, D., Stanković, S. J.,& Kovačević, M.. (1999). Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region. in Physics in Medicine and Biology, 44(9), 2193-2200.
https://doi.org/10.1088/0031-9155/44/9/307
Tomljenovic I, Ninković MM, Bek-Uzarov D, Stanković SJ, Kovačević M. Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region. in Physics in Medicine and Biology. 1999;44(9):2193-2200.
doi:10.1088/0031-9155/44/9/307 .
Tomljenovic, II, Ninković, Marko M., Bek-Uzarov, D, Stanković, Srboljub J., Kovačević, Milojko, "Water phantom backscatter factors for x-rays in the 60 kV to 300 kV region" in Physics in Medicine and Biology, 44, no. 9 (1999):2193-2200,
https://doi.org/10.1088/0031-9155/44/9/307 . .
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