TY  - JOUR
AU  - Kovačević, Milan S.
AU  - Djordjevich, Alexandar
AU  - Savović, Svetislav
AU  - Bajic, Jovan S.
AU  - Stupar, Dragan Z.
AU  - Slankamenac, Miloš P.
AU  - Kovačević, Milojko
PY  - 2013
UR  - https://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 Savović, 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., Savović, 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, Savović 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, Savović, 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 . .

TY  - JOUR
AU  - Savović, Svetislav
AU  - Todorović, Živojin
AU  - Djordjevich, Alexandar
AU  - Jokić, Stevan
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4572
AB  - The timescale for emission of three fragments (Z GT = 8) in the 12.7 GeV He-4+U-238 reaction has been studied using a sandwich configuration of the Makrofol polycarbonate track detector. In events with varying multiplicity of heavy fragments (Z GT 20), the differences of the correlation functions for relative angle and relative velocity between pairs of fragments have been studied in order to determine the fragment emission timescale. A sequential decay mechanism for the excited residual nuclei was found to be consistent with experimental data. It was determined that the fragment emission time decreased with decreasing multiplicity of heavy fragments from 1200 +/- 80 fm c(-1) for events with two heavy fragments to 400 +/- 50 fm c(-1) for events with one heavy fragment.
T2  - Physica Scripta
T1  - On the determination of the time-scale of three-fragment emission in the 12.7 GeV He-4+U-238 reaction using the polycarbonate track detector Makrofol
VL  - 84
IS  - 5
DO  - 10.1088/0031-8949/84/05/055201
ER  - 

@article{
author = "Savović, Svetislav and Todorović, Živojin and Djordjevich, Alexandar and Jokić, Stevan",
year = "2011",
abstract = "The timescale for emission of three fragments (Z GT = 8) in the 12.7 GeV He-4+U-238 reaction has been studied using a sandwich configuration of the Makrofol polycarbonate track detector. In events with varying multiplicity of heavy fragments (Z GT 20), the differences of the correlation functions for relative angle and relative velocity between pairs of fragments have been studied in order to determine the fragment emission timescale. A sequential decay mechanism for the excited residual nuclei was found to be consistent with experimental data. It was determined that the fragment emission time decreased with decreasing multiplicity of heavy fragments from 1200 +/- 80 fm c(-1) for events with two heavy fragments to 400 +/- 50 fm c(-1) for events with one heavy fragment.",
journal = "Physica Scripta",
title = "On the determination of the time-scale of three-fragment emission in the 12.7 GeV He-4+U-238 reaction using the polycarbonate track detector Makrofol",
volume = "84",
number = "5",
doi = "10.1088/0031-8949/84/05/055201"
}

Savović, S., Todorović, Ž., Djordjevich, A.,& Jokić, S.. (2011). On the determination of the time-scale of three-fragment emission in the 12.7 GeV He-4+U-238 reaction using the polycarbonate track detector Makrofol. in Physica Scripta, 84(5).
https://doi.org/10.1088/0031-8949/84/05/055201

Savović S, Todorović Ž, Djordjevich A, Jokić S. On the determination of the time-scale of three-fragment emission in the 12.7 GeV He-4+U-238 reaction using the polycarbonate track detector Makrofol. in Physica Scripta. 2011;84(5).
doi:10.1088/0031-8949/84/05/055201 .

Savović, Svetislav, Todorović, Živojin, Djordjevich, Alexandar, Jokić, Stevan, "On the determination of the time-scale of three-fragment emission in the 12.7 GeV He-4+U-238 reaction using the polycarbonate track detector Makrofol" in Physica Scripta, 84, no. 5 (2011),
https://doi.org/10.1088/0031-8949/84/05/055201 . .

TY  - JOUR
AU  - Savović, Svetislav
AU  - Djordjevich, Alexandar
AU  - Jokić, Stevan
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4050
AB  - The Monte Carlo method is employed to calculate the geometrical efficiency of a multi-detector system for fragments produced in heavy ion reactions. This efficiency is defined as a quotient of the number of fragments intercepted by the system and the total number of fragments emitted by the fissioning nucleus in all directions. The multi-detector system consists of six parallel-plate avalanche counters in a hexagonal configuration around the target. Its geometrical efficiency was calculated with respect to the Ar-36 + U-238 reaction at a 7 MeV/u projectile energy.
T2  - Measurement Science and Technology
T1  - Monte Carlo calculation for the geometrical efficiency of a multi-detector system for heavy ion reaction products
VL  - 21
IS  - 8
DO  - 10.1088/0957-0233/21/8/087002
ER  - 

@article{
author = "Savović, Svetislav and Djordjevich, Alexandar and Jokić, Stevan",
year = "2010",
abstract = "The Monte Carlo method is employed to calculate the geometrical efficiency of a multi-detector system for fragments produced in heavy ion reactions. This efficiency is defined as a quotient of the number of fragments intercepted by the system and the total number of fragments emitted by the fissioning nucleus in all directions. The multi-detector system consists of six parallel-plate avalanche counters in a hexagonal configuration around the target. Its geometrical efficiency was calculated with respect to the Ar-36 + U-238 reaction at a 7 MeV/u projectile energy.",
journal = "Measurement Science and Technology",
title = "Monte Carlo calculation for the geometrical efficiency of a multi-detector system for heavy ion reaction products",
volume = "21",
number = "8",
doi = "10.1088/0957-0233/21/8/087002"
}

Savović, S., Djordjevich, A.,& Jokić, S.. (2010). Monte Carlo calculation for the geometrical efficiency of a multi-detector system for heavy ion reaction products. in Measurement Science and Technology, 21(8).
https://doi.org/10.1088/0957-0233/21/8/087002

Savović S, Djordjevich A, Jokić S. Monte Carlo calculation for the geometrical efficiency of a multi-detector system for heavy ion reaction products. in Measurement Science and Technology. 2010;21(8).
doi:10.1088/0957-0233/21/8/087002 .

Savović, Svetislav, Djordjevich, Alexandar, Jokić, Stevan, "Monte Carlo calculation for the geometrical efficiency of a multi-detector system for heavy ion reaction products" in Measurement Science and Technology, 21, no. 8 (2010),
https://doi.org/10.1088/0957-0233/21/8/087002 . .