TY  - JOUR
AU  - Milutinović, Slobodan
AU  - Pandurović, Mila
AU  - Vujisić, Miloš
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11573
AB  - Gold nanoparticles (AuNPs) have been investigated extensively in the past twenty years as a sensitizing agent in photon radiotherapy. Targeted delivery of AuNPs to specifc sites in cells and tissues contributes to highly localized radiation dose enhancement, whereby the surrounding healthy structures can be largely spared from the unwanted radiation efects. Te efciency of introduced AuNPs with regard to dose enhancement depends on the properties of the nanoparticles since not all of deposited radiation energy reaches the intended biological target but is partially absorbed within the nanoparticles themselves or distributed elsewhere. Te present paper investigates the infuence of AuNP shape and localization on the enhancement and intracellular distribution of deposited energy in radiation therapy with photons. Energy deposition patterns are calculated with nanoscale accuracy through Monte Carlo simulations of radiation transport, which are optimized to accommodate a structured geometrical representation of the region loaded with AuNPs, i.e., to allow discrete modeling of individual nanoparticles. Same-volume nanoparticles of three commonly encountered shapes—nanospheres, nanorods, and square nanoplates—are examined, in order to inspect the diferences in the propagation and absorption of secondary charged particles produced by the incident photons. Five diferent spatial distributions of spherical AuNPs at the single-cell level are studied in the simulations and compared according to the energy deposited in the cell nucleus. Photon energy, nanoparticle size, and concentration are also varied across simulation runs, and their infuence is analyzed in connection to nanoparticle shape and localization. Te obtained results reveal how the investigated nanoparticle properties afect their dose-enhancing ability and irradiation specifcity in AuNP-augmented radiotherapy.
T2  - Nanomaterials and Nanotechnology
T1  - Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy
VL  - 2023
SP  - 1
EP  - 18
DO  - 10.1155/2023/9841614
ER  - 

@article{
author = "Milutinović, Slobodan and Pandurović, Mila and Vujisić, Miloš",
year = "2023",
abstract = "Gold nanoparticles (AuNPs) have been investigated extensively in the past twenty years as a sensitizing agent in photon radiotherapy. Targeted delivery of AuNPs to specifc sites in cells and tissues contributes to highly localized radiation dose enhancement, whereby the surrounding healthy structures can be largely spared from the unwanted radiation efects. Te efciency of introduced AuNPs with regard to dose enhancement depends on the properties of the nanoparticles since not all of deposited radiation energy reaches the intended biological target but is partially absorbed within the nanoparticles themselves or distributed elsewhere. Te present paper investigates the infuence of AuNP shape and localization on the enhancement and intracellular distribution of deposited energy in radiation therapy with photons. Energy deposition patterns are calculated with nanoscale accuracy through Monte Carlo simulations of radiation transport, which are optimized to accommodate a structured geometrical representation of the region loaded with AuNPs, i.e., to allow discrete modeling of individual nanoparticles. Same-volume nanoparticles of three commonly encountered shapes—nanospheres, nanorods, and square nanoplates—are examined, in order to inspect the diferences in the propagation and absorption of secondary charged particles produced by the incident photons. Five diferent spatial distributions of spherical AuNPs at the single-cell level are studied in the simulations and compared according to the energy deposited in the cell nucleus. Photon energy, nanoparticle size, and concentration are also varied across simulation runs, and their infuence is analyzed in connection to nanoparticle shape and localization. Te obtained results reveal how the investigated nanoparticle properties afect their dose-enhancing ability and irradiation specifcity in AuNP-augmented radiotherapy.",
journal = "Nanomaterials and Nanotechnology",
title = "Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy",
volume = "2023",
pages = "1-18",
doi = "10.1155/2023/9841614"
}

Milutinović, S., Pandurović, M.,& Vujisić, M.. (2023). Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy. in Nanomaterials and Nanotechnology, 2023, 1-18.
https://doi.org/10.1155/2023/9841614

Milutinović S, Pandurović M, Vujisić M. Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy. in Nanomaterials and Nanotechnology. 2023;2023:1-18.
doi:10.1155/2023/9841614 .

Milutinović, Slobodan, Pandurović, Mila, Vujisić, Miloš, "Influence of Gold Nanoparticle Shape and Single-Cell Localization on Energy Deposition Efficiency and Irradiation Specificity in Photon Radiotherapy" in Nanomaterials and Nanotechnology, 2023 (2023):1-18,
https://doi.org/10.1155/2023/9841614 . .

TY  - JOUR
AU  - Krajinović, Marko
AU  - Vujisić, Miloš
AU  - Ciraj-Bjelac, Olivera
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10110
AB  - The purpose of this work is to provide a comprehensive analysis of uncertainties associated with the use of software solutions utilizing DICOM RDSRs for skin dose assessment in the interventional fluoroscopic environment.Three different scenarios have been defined for determining the overall uncertainty, each with a specific assumption on the maximum deviations of factors affecting the calculated dose. Relative expanded uncertainty has been calculated using two approaches: the law of propagation of uncertainty and the propagation of distributions based on the Monte Carlo method. According to the propagation of uncertainty, it is estimated that the lowest possible relative expanded uncertainty of ~13% (at the 95% level of confidence, i.e. with the coverage factor of k = 2 assuming normal distribution) could only be achieved if all sources of uncertainties are carefully controlled, whereas maximum relative expanded uncertainty could reach up to 61% if none of the influencing parameters are controlled properly. When the influencing parameters are reasonably well-controlled, realistic relative expanded uncertainty amounts to 28%. Values for the relative expanded uncertainty obtained from the Monte Carlo propagation of distributions concur with the results obtained from the propagation of uncertainty to within 3% in all three considered scenarios, validating the assumption of normality.The overall skin dose relative uncertainty has been found to range from 13 to 61%, emphasizing the importance of adequate analysis and control of all relevant uncertainty sources.
T2  - Radiation Protection Dosimetry
T1  - Uncertainty associated with the use of software solutions utilizing dicom rdsr for skin dose assessment in interventional radiology and cardiology
VL  - 196
IS  - 3-4
SP  - 129
EP  - 135
DO  - 10.1093/rpd/ncab146
ER  - 

@article{
author = "Krajinović, Marko and Vujisić, Miloš and Ciraj-Bjelac, Olivera",
year = "2021",
abstract = "The purpose of this work is to provide a comprehensive analysis of uncertainties associated with the use of software solutions utilizing DICOM RDSRs for skin dose assessment in the interventional fluoroscopic environment.Three different scenarios have been defined for determining the overall uncertainty, each with a specific assumption on the maximum deviations of factors affecting the calculated dose. Relative expanded uncertainty has been calculated using two approaches: the law of propagation of uncertainty and the propagation of distributions based on the Monte Carlo method. According to the propagation of uncertainty, it is estimated that the lowest possible relative expanded uncertainty of ~13% (at the 95% level of confidence, i.e. with the coverage factor of k = 2 assuming normal distribution) could only be achieved if all sources of uncertainties are carefully controlled, whereas maximum relative expanded uncertainty could reach up to 61% if none of the influencing parameters are controlled properly. When the influencing parameters are reasonably well-controlled, realistic relative expanded uncertainty amounts to 28%. Values for the relative expanded uncertainty obtained from the Monte Carlo propagation of distributions concur with the results obtained from the propagation of uncertainty to within 3% in all three considered scenarios, validating the assumption of normality.The overall skin dose relative uncertainty has been found to range from 13 to 61%, emphasizing the importance of adequate analysis and control of all relevant uncertainty sources.",
journal = "Radiation Protection Dosimetry",
title = "Uncertainty associated with the use of software solutions utilizing dicom rdsr for skin dose assessment in interventional radiology and cardiology",
volume = "196",
number = "3-4",
pages = "129-135",
doi = "10.1093/rpd/ncab146"
}

Krajinović, M., Vujisić, M.,& Ciraj-Bjelac, O.. (2021). Uncertainty associated with the use of software solutions utilizing dicom rdsr for skin dose assessment in interventional radiology and cardiology. in Radiation Protection Dosimetry, 196(3-4), 129-135.
https://doi.org/10.1093/rpd/ncab146

Krajinović M, Vujisić M, Ciraj-Bjelac O. Uncertainty associated with the use of software solutions utilizing dicom rdsr for skin dose assessment in interventional radiology and cardiology. in Radiation Protection Dosimetry. 2021;196(3-4):129-135.
doi:10.1093/rpd/ncab146 .

Krajinović, Marko, Vujisić, Miloš, Ciraj-Bjelac, Olivera, "Uncertainty associated with the use of software solutions utilizing dicom rdsr for skin dose assessment in interventional radiology and cardiology" in Radiation Protection Dosimetry, 196, no. 3-4 (2021):129-135,
https://doi.org/10.1093/rpd/ncab146 . .

TY  - JOUR
AU  - Budimir, Milica
AU  - Marković, Zoran M.
AU  - Jovanović, Dragana J.
AU  - Vujisić, Miloš
AU  - Mičušík, Matej
AU  - Danko, Martin
AU  - Kleinová, Angela
AU  - Švajdlenková, Helena
AU  - Špitalský, Zdeno
AU  - Todorović-Marković, Biljana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9827
T2  - RSC Advances
T1  - Erratum: Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study
VL  - 10
IS  - 12
SP  - 7125
DO  - 10.1039/D0RA90015J
ER  - 

@article{
author = "Budimir, Milica and Marković, Zoran M. and Jovanović, Dragana J. and Vujisić, Miloš and Mičušík, Matej and Danko, Martin and Kleinová, Angela and Švajdlenková, Helena and Špitalský, Zdeno and Todorović-Marković, Biljana",
year = "2020",
journal = "RSC Advances",
title = "Erratum: Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study",
volume = "10",
number = "12",
pages = "7125",
doi = "10.1039/D0RA90015J"
}

Budimir, M., Marković, Z. M., Jovanović, D. J., Vujisić, M., Mičušík, M., Danko, M., Kleinová, A., Švajdlenková, H., Špitalský, Z.,& Todorović-Marković, B.. (2020). Erratum: Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study. in RSC Advances, 10(12), 7125.
https://doi.org/10.1039/D0RA90015J

Budimir M, Marković ZM, Jovanović DJ, Vujisić M, Mičušík M, Danko M, Kleinová A, Švajdlenková H, Špitalský Z, Todorović-Marković B. Erratum: Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study. in RSC Advances. 2020;10(12):7125.
doi:10.1039/D0RA90015J .

Budimir, Milica, Marković, Zoran M., Jovanović, Dragana J., Vujisić, Miloš, Mičušík, Matej, Danko, Martin, Kleinová, Angela, Švajdlenková, Helena, Špitalský, Zdeno, Todorović-Marković, Biljana, "Erratum: Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study" in RSC Advances, 10, no. 12 (2020):7125,
https://doi.org/10.1039/D0RA90015J . .

TY  - JOUR
AU  - Janićijević, Željko
AU  - Vujčić, Ivica
AU  - Veljović, Đorđe N.
AU  - Vujisić, Miloš Lj.
AU  - Radovanović, Filip
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8514
AB  - Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions. © 2019 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties
VL  - 166
SP  - 108466
DO  - 10.1016/j.radphyschem.2019.108466
ER  - 

@article{
author = "Janićijević, Željko and Vujčić, Ivica and Veljović, Đorđe N. and Vujisić, Miloš Lj. and Radovanović, Filip",
year = "2020",
abstract = "Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties",
volume = "166",
pages = "108466",
doi = "10.1016/j.radphyschem.2019.108466"
}

Janićijević, Ž., Vujčić, I., Veljović, Đ. N., Vujisić, M. Lj.,& Radovanović, F.. (2020). Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry, 166, 108466.
https://doi.org/10.1016/j.radphyschem.2019.108466

Janićijević Ž, Vujčić I, Veljović ĐN, Vujisić ML, Radovanović F. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry. 2020;166:108466.
doi:10.1016/j.radphyschem.2019.108466 .

Janićijević, Željko, Vujčić, Ivica, Veljović, Đorđe N., Vujisić, Miloš Lj., Radovanović, Filip, "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties" in Radiation Physics and Chemistry, 166 (2020):108466,
https://doi.org/10.1016/j.radphyschem.2019.108466 . .

TY  - JOUR
AU  - Milutinović, Slobodan
AU  - Vujisić, Miloš Lj.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9740
AB  - The purpose of this study is to investigate and quantify the influence of nanoparticle composition, size, and concentration on the difference between dose enhancement values derived from Monte Carlo simulations with homogeneous and structured geometrical representations of the target region in metal nanoparticle-enhanced photon brachytherapy. Values of the dose enhancement factor (DEF) were calculated for Pd-103, I-125, and Cs-131 brachytherapy sources with gold, silver, or platinum nanoparticles acting as targeting agents. Simulations were performed using the Geant4 toolkit with condensed history models of electron transport. Stringent limits were imposed on adjustable parameters that define secondary electron histories, so that simulations came closest to true event-by-event electron tracking, thereby allowing part of the nanoparticle-laden volume used for calculating the dose to be represented as a structured region with uniformly distributed discrete nanoparticles. Fine-tuned physical models of secondary radiation emission and propagation, along with the discrete geometrical representation of nanoparticles, result in a more realistic assessment of dose enhancement. The DEF correction coefficient is introduced as a metric that quantifies the absorption of secondary radiation inside the nanoparticles themselves, a phenomenon disregarded when the target region is treated as a homogeneous metal–tissue mixture, but accounted for by discrete nanoparticle representation. The approach applied to correcting DEF values both draws from and expands upon several related investigations published previously. Comparison of the obtained results to those found in relevant references shows both agreement and deviation, depending on nanoparticle properties and photon energy. © 2020, China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd.
T2  - Nuclear Science and Techniques
T1  - Simulation-based correction of dose enhancement factor values in photon brachytherapy with metal nanoparticle targeting
VL  - 31
IS  - 11
DO  - 10.1007/s41365-020-00820-8
ER  - 

@article{
author = "Milutinović, Slobodan and Vujisić, Miloš Lj.",
year = "2020",
abstract = "The purpose of this study is to investigate and quantify the influence of nanoparticle composition, size, and concentration on the difference between dose enhancement values derived from Monte Carlo simulations with homogeneous and structured geometrical representations of the target region in metal nanoparticle-enhanced photon brachytherapy. Values of the dose enhancement factor (DEF) were calculated for Pd-103, I-125, and Cs-131 brachytherapy sources with gold, silver, or platinum nanoparticles acting as targeting agents. Simulations were performed using the Geant4 toolkit with condensed history models of electron transport. Stringent limits were imposed on adjustable parameters that define secondary electron histories, so that simulations came closest to true event-by-event electron tracking, thereby allowing part of the nanoparticle-laden volume used for calculating the dose to be represented as a structured region with uniformly distributed discrete nanoparticles. Fine-tuned physical models of secondary radiation emission and propagation, along with the discrete geometrical representation of nanoparticles, result in a more realistic assessment of dose enhancement. The DEF correction coefficient is introduced as a metric that quantifies the absorption of secondary radiation inside the nanoparticles themselves, a phenomenon disregarded when the target region is treated as a homogeneous metal–tissue mixture, but accounted for by discrete nanoparticle representation. The approach applied to correcting DEF values both draws from and expands upon several related investigations published previously. Comparison of the obtained results to those found in relevant references shows both agreement and deviation, depending on nanoparticle properties and photon energy. © 2020, China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd.",
journal = "Nuclear Science and Techniques",
title = "Simulation-based correction of dose enhancement factor values in photon brachytherapy with metal nanoparticle targeting",
volume = "31",
number = "11",
doi = "10.1007/s41365-020-00820-8"
}

Milutinović, S.,& Vujisić, M. Lj.. (2020). Simulation-based correction of dose enhancement factor values in photon brachytherapy with metal nanoparticle targeting. in Nuclear Science and Techniques, 31(11).
https://doi.org/10.1007/s41365-020-00820-8

Milutinović S, Vujisić ML. Simulation-based correction of dose enhancement factor values in photon brachytherapy with metal nanoparticle targeting. in Nuclear Science and Techniques. 2020;31(11).
doi:10.1007/s41365-020-00820-8 .

Milutinović, Slobodan, Vujisić, Miloš Lj., "Simulation-based correction of dose enhancement factor values in photon brachytherapy with metal nanoparticle targeting" in Nuclear Science and Techniques, 31, no. 11 (2020),
https://doi.org/10.1007/s41365-020-00820-8 . .

TY  - JOUR
AU  - Budimir, Milica
AU  - Marković, Zoran M.
AU  - Jovanović, Dragana J.
AU  - Vujisić, Miloš Lj.
AU  - Mičušik, Matej
AU  - Danko, Martin
AU  - Kleinova, Angela
AU  - Švajdlenkova, Helena
AU  - Špitalsky, Zdenko
AU  - Todorović-Marković, Biljana
PY  - 2019
UR  - http://xlink.rsc.org/?DOI=C9RA00500E
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8086
AB  - In recent years, water pollution and contamination had become a major threat to the ecosystem. However, the use of nanostructured materials has been proven as a very promising approach in the treatment of polluted water. The present study reports the results of the gamma ray-assisted modification of hydrophobic carbon quantum dot (hCQD)/polyurethane nanocomposites for photocatalytic degradation of organic dyes. Different characterization methods were applied to investigate the influence of the different doses of gamma irradiation (1, 10 and 200 kGy) on the physical and chemical properties of nanocomposites (morphology, chemical content, mechanical properties, wettability, and potential for singlet oxygen generation). Surface morphology and mechanical properties analyses showed that gamma rays induced insignificant changes in the structure of nanocomposites, but the potential for singlet oxygen generation increased significantly. Here we also explore, in detail, the photocatalytic properties of gamma-ray modified hCQDs/polyurethane nanocomposites. UV-vis analysis showed that the removal efficiency of the rose bengal dye reached up to 97% for the nanocomposite irradiated with the dose of 200 kGy.
T2  - RSC Advances
T1  - Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study
VL  - 9
IS  - 11
SP  - 6278
EP  - 6286
DO  - 10.1039/C9RA00500E
ER  - 

@article{
author = "Budimir, Milica and Marković, Zoran M. and Jovanović, Dragana J. and Vujisić, Miloš Lj. and Mičušik, Matej and Danko, Martin and Kleinova, Angela and Švajdlenkova, Helena and Špitalsky, Zdenko and Todorović-Marković, Biljana",
year = "2019",
abstract = "In recent years, water pollution and contamination had become a major threat to the ecosystem. However, the use of nanostructured materials has been proven as a very promising approach in the treatment of polluted water. The present study reports the results of the gamma ray-assisted modification of hydrophobic carbon quantum dot (hCQD)/polyurethane nanocomposites for photocatalytic degradation of organic dyes. Different characterization methods were applied to investigate the influence of the different doses of gamma irradiation (1, 10 and 200 kGy) on the physical and chemical properties of nanocomposites (morphology, chemical content, mechanical properties, wettability, and potential for singlet oxygen generation). Surface morphology and mechanical properties analyses showed that gamma rays induced insignificant changes in the structure of nanocomposites, but the potential for singlet oxygen generation increased significantly. Here we also explore, in detail, the photocatalytic properties of gamma-ray modified hCQDs/polyurethane nanocomposites. UV-vis analysis showed that the removal efficiency of the rose bengal dye reached up to 97% for the nanocomposite irradiated with the dose of 200 kGy.",
journal = "RSC Advances",
title = "Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study",
volume = "9",
number = "11",
pages = "6278-6286",
doi = "10.1039/C9RA00500E"
}

Budimir, M., Marković, Z. M., Jovanović, D. J., Vujisić, M. Lj., Mičušik, M., Danko, M., Kleinova, A., Švajdlenkova, H., Špitalsky, Z.,& Todorović-Marković, B.. (2019). Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study. in RSC Advances, 9(11), 6278-6286.
https://doi.org/10.1039/C9RA00500E

Budimir M, Marković ZM, Jovanović DJ, Vujisić ML, Mičušik M, Danko M, Kleinova A, Švajdlenkova H, Špitalsky Z, Todorović-Marković B. Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study. in RSC Advances. 2019;9(11):6278-6286.
doi:10.1039/C9RA00500E .

Budimir, Milica, Marković, Zoran M., Jovanović, Dragana J., Vujisić, Miloš Lj., Mičušik, Matej, Danko, Martin, Kleinova, Angela, Švajdlenkova, Helena, Špitalsky, Zdenko, Todorović-Marković, Biljana, "Gamma ray assisted modification of carbon quantum dot/polyurethane nanocomposites: structural, mechanical and photocatalytic study" in RSC Advances, 9, no. 11 (2019):6278-6286,
https://doi.org/10.1039/C9RA00500E . .

TY  - CONF
AU  - Kalinić, Ana
AU  - Vujisić, Miloš
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12055
AB  - Dejstvo snopova protona, alfa čestica, jona ugljenika i gvožđa na grafenski tranzistor sa efektom polja (GFET, graphene field effect transistor), u elektrodnim konfiguracijama sa gornjim i zadnjim gejtom, analizirano je pomoću Monte Karlo simulacija transporta zračenja. Energije upadnih čestica zadavane su u opsegu od 1 keV do 10 MeV. Struktura sa gornjim gejtom modelirana je slojevima Al-SiO2- grafen-Si, a sa zadnjim gejtom slojevima grafen-SiO2-Si-Al. Snopovi su usmeravani na prednju stranu tranzistora u obe elektrodne konfiguracije. Na osnovu podataka o tačkastim defektima prouzrokovanim zračenjem, dobijenih iz simulacija, izračunata je promena nejonizujućeg gubitka energije (NIEL) po dubini analiziranih struktura, kao i raspodela izmeštenih atoma i vakancija u oblasti izolatorske podloge neposredno uz grafenski monosloj. Pokazano je kako pokretljivost nosilaca naelektrisanja i slojna električna provodnost grafenskog sloja zavise od defekata formiranih u okolini ovog sloja. Identifikovani su opsezi energija upadnog zračenja za koje su očekivane promene električnih osobina GFET-a najizraženije. Cilj rada je da se dve ispitivane elektrodne konfiguracije GFET-a uporede po radijacionoj osetljivosti u modeliranim uslovima ozračenosti.
AB  - Effects of exposing GFETs (graphene field effect transistors), with top- or back-gate electrode configurations, to beams of protons, alpha particles, carbon and iron ions has been studied through Monte Carlo simulations of radiation transport. The energy of incident beams ranged from 1 keV to 10 MeV. The top-gate structure was modeled by the layers of Al-SiO2-graphene-Si, while the back-gate structure consisted of graphene-SiO2-Si-Al. The beams were incident on the front surface of the transistor in both electrode configurations. Data on point defects caused by irradiation, obtained from simulations, were used for calculating the non-ionizing energy loss (NIEL) along the depth of analyzed structures, as well as the distribution of atoms and vacancies in the region within the insulating substrate next to the graphene monolayer. It has been demonstrated how charge carrier mobility and sheet conductance of the graphene layer depend on the defects formed in the vicinity of this layer. Ranges of energies have been identified for which the incident radiation would cause greatest changes in GFET electrical properties. The aim of this paper is to draw conclusions on how the two investigated GFET electrode configurations compare against each other concerning radiation sensitivity in modeled exposure conditions.
PB  - Belgrade : ETRAN Society
C3  - ETRAN 2018 : 62. Konferencija adn IcETRAN 2018 : 5th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book
T1  - Analiza dejstva jonskih snopova na GFET strukture simulacijom transporta zračenja
T1  - Study of Ion-Beam Effects in GFET Structures Based on Simulations of Radiation Transport
SP  - 370
EP  - 375
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11917
ER  - 

@conference{
author = "Kalinić, Ana and Vujisić, Miloš",
year = "2018",
abstract = "Dejstvo snopova protona, alfa čestica, jona ugljenika i gvožđa na grafenski tranzistor sa efektom polja (GFET, graphene field effect transistor), u elektrodnim konfiguracijama sa gornjim i zadnjim gejtom, analizirano je pomoću Monte Karlo simulacija transporta zračenja. Energije upadnih čestica zadavane su u opsegu od 1 keV do 10 MeV. Struktura sa gornjim gejtom modelirana je slojevima Al-SiO2- grafen-Si, a sa zadnjim gejtom slojevima grafen-SiO2-Si-Al. Snopovi su usmeravani na prednju stranu tranzistora u obe elektrodne konfiguracije. Na osnovu podataka o tačkastim defektima prouzrokovanim zračenjem, dobijenih iz simulacija, izračunata je promena nejonizujućeg gubitka energije (NIEL) po dubini analiziranih struktura, kao i raspodela izmeštenih atoma i vakancija u oblasti izolatorske podloge neposredno uz grafenski monosloj. Pokazano je kako pokretljivost nosilaca naelektrisanja i slojna električna provodnost grafenskog sloja zavise od defekata formiranih u okolini ovog sloja. Identifikovani su opsezi energija upadnog zračenja za koje su očekivane promene električnih osobina GFET-a najizraženije. Cilj rada je da se dve ispitivane elektrodne konfiguracije GFET-a uporede po radijacionoj osetljivosti u modeliranim uslovima ozračenosti., Effects of exposing GFETs (graphene field effect transistors), with top- or back-gate electrode configurations, to beams of protons, alpha particles, carbon and iron ions has been studied through Monte Carlo simulations of radiation transport. The energy of incident beams ranged from 1 keV to 10 MeV. The top-gate structure was modeled by the layers of Al-SiO2-graphene-Si, while the back-gate structure consisted of graphene-SiO2-Si-Al. The beams were incident on the front surface of the transistor in both electrode configurations. Data on point defects caused by irradiation, obtained from simulations, were used for calculating the non-ionizing energy loss (NIEL) along the depth of analyzed structures, as well as the distribution of atoms and vacancies in the region within the insulating substrate next to the graphene monolayer. It has been demonstrated how charge carrier mobility and sheet conductance of the graphene layer depend on the defects formed in the vicinity of this layer. Ranges of energies have been identified for which the incident radiation would cause greatest changes in GFET electrical properties. The aim of this paper is to draw conclusions on how the two investigated GFET electrode configurations compare against each other concerning radiation sensitivity in modeled exposure conditions.",
publisher = "Belgrade : ETRAN Society",
journal = "ETRAN 2018 : 62. Konferencija adn IcETRAN 2018 : 5th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book",
title = "Analiza dejstva jonskih snopova na GFET strukture simulacijom transporta zračenja, Study of Ion-Beam Effects in GFET Structures Based on Simulations of Radiation Transport",
pages = "370-375",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11917"
}

Kalinić, A.,& Vujisić, M.. (2018). Analiza dejstva jonskih snopova na GFET strukture simulacijom transporta zračenja. in ETRAN 2018 : 62. Konferencija adn IcETRAN 2018 : 5th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book
Belgrade : ETRAN Society., 370-375.
https://hdl.handle.net/21.15107/rcub_vinar_11917

Kalinić A, Vujisić M. Analiza dejstva jonskih snopova na GFET strukture simulacijom transporta zračenja. in ETRAN 2018 : 62. Konferencija adn IcETRAN 2018 : 5th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book. 2018;:370-375.
https://hdl.handle.net/21.15107/rcub_vinar_11917 .

Kalinić, Ana, Vujisić, Miloš, "Analiza dejstva jonskih snopova na GFET strukture simulacijom transporta zračenja" in ETRAN 2018 : 62. Konferencija adn IcETRAN 2018 : 5th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book (2018):370-375,
https://hdl.handle.net/21.15107/rcub_vinar_11917 .

TY  - JOUR
AU  - Milosavljevic, Srdjan
AU  - Lazarević, Đorđe R.
AU  - Stanković, Koviljka
AU  - Pejović, Milić M.
AU  - Vujisić, Miloš Lj.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1850
T2  - International Journal of Photoenergy
T1  - Corrigendum to: Effects of ion beam irradiation on nanoscale InOx cooper-pair insulators (International Journal of Photoenergy (2013) 2013 (236823) DOI: 10.1155/2013/236823)
DO  - 10.1155/2017/3029101
ER  - 

@article{
author = "Milosavljevic, Srdjan and Lazarević, Đorđe R. and Stanković, Koviljka and Pejović, Milić M. and Vujisić, Miloš Lj.",
year = "2017",
journal = "International Journal of Photoenergy",
title = "Corrigendum to: Effects of ion beam irradiation on nanoscale InOx cooper-pair insulators (International Journal of Photoenergy (2013) 2013 (236823) DOI: 10.1155/2013/236823)",
doi = "10.1155/2017/3029101"
}

Milosavljevic, S., Lazarević, Đ. R., Stanković, K., Pejović, M. M.,& Vujisić, M. Lj.. (2017). Corrigendum to: Effects of ion beam irradiation on nanoscale InOx cooper-pair insulators (International Journal of Photoenergy (2013) 2013 (236823) DOI: 10.1155/2013/236823). in International Journal of Photoenergy.
https://doi.org/10.1155/2017/3029101

Milosavljevic S, Lazarević ĐR, Stanković K, Pejović MM, Vujisić ML. Corrigendum to: Effects of ion beam irradiation on nanoscale InOx cooper-pair insulators (International Journal of Photoenergy (2013) 2013 (236823) DOI: 10.1155/2013/236823). in International Journal of Photoenergy. 2017;.
doi:10.1155/2017/3029101 .

Milosavljevic, Srdjan, Lazarević, Đorđe R., Stanković, Koviljka, Pejović, Milić M., Vujisić, Miloš Lj., "Corrigendum to: Effects of ion beam irradiation on nanoscale InOx cooper-pair insulators (International Journal of Photoenergy (2013) 2013 (236823) DOI: 10.1155/2013/236823)" in International Journal of Photoenergy (2017),
https://doi.org/10.1155/2017/3029101 . .

TY  - CONF
AU  - Kržanović, Nikola
AU  - Haralambos Apostolakopoulos, Filip
AU  - Živanović, Miloš
AU  - Vujisić, Miloš
AU  - Stanković, Koviljka
AU  - Lazarević, Đorđe
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11916
AB  - Prior to performing calibrations in the Secondary Standard Dosimetry Laboratory (SSDL), standard radiation qualities must be determined in order to accurately assess the absorbed dose of occupationally exposed personnel and to evaluate the performance of radiation measurement instruments. Due to the energy dependence of the calibration factor and the air kerma to the personal dose equivalent conversion factor, it is of great importance to properly establish standard radiation qualities. Radiation qualities can be characterized by determining their photon energy distributions, or by using the Xray tube voltage and the first and second half-value layers. In this paper, the half-value layers were determined by varying the thicknesses of the additional filtration absorbers. The calculated values show a deviation from the ISO standard values not greater than 6%.
PB  - Belgrade : ETRAN Society
C3  - IcETRAN 2017 : 4th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book
T1  - Establishing Standard X-ray Narrow-beam Radiation Qualities in the Secondary Standard Dosimetry Laboratory
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11916
ER  - 

@conference{
author = "Kržanović, Nikola and Haralambos Apostolakopoulos, Filip and Živanović, Miloš and Vujisić, Miloš and Stanković, Koviljka and Lazarević, Đorđe",
year = "2017",
abstract = "Prior to performing calibrations in the Secondary Standard Dosimetry Laboratory (SSDL), standard radiation qualities must be determined in order to accurately assess the absorbed dose of occupationally exposed personnel and to evaluate the performance of radiation measurement instruments. Due to the energy dependence of the calibration factor and the air kerma to the personal dose equivalent conversion factor, it is of great importance to properly establish standard radiation qualities. Radiation qualities can be characterized by determining their photon energy distributions, or by using the Xray tube voltage and the first and second half-value layers. In this paper, the half-value layers were determined by varying the thicknesses of the additional filtration absorbers. The calculated values show a deviation from the ISO standard values not greater than 6%.",
publisher = "Belgrade : ETRAN Society",
journal = "IcETRAN 2017 : 4th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book",
title = "Establishing Standard X-ray Narrow-beam Radiation Qualities in the Secondary Standard Dosimetry Laboratory",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11916"
}

Kržanović, N., Haralambos Apostolakopoulos, F., Živanović, M., Vujisić, M., Stanković, K.,& Lazarević, Đ.. (2017). Establishing Standard X-ray Narrow-beam Radiation Qualities in the Secondary Standard Dosimetry Laboratory. in IcETRAN 2017 : 4th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_vinar_11916

Kržanović N, Haralambos Apostolakopoulos F, Živanović M, Vujisić M, Stanković K, Lazarević Đ. Establishing Standard X-ray Narrow-beam Radiation Qualities in the Secondary Standard Dosimetry Laboratory. in IcETRAN 2017 : 4th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book. 2017;.
https://hdl.handle.net/21.15107/rcub_vinar_11916 .

Kržanović, Nikola, Haralambos Apostolakopoulos, Filip, Živanović, Miloš, Vujisić, Miloš, Stanković, Koviljka, Lazarević, Đorđe, "Establishing Standard X-ray Narrow-beam Radiation Qualities in the Secondary Standard Dosimetry Laboratory" in IcETRAN 2017 : 4th International Conference on Electrical, Electronic and Computing Engineering; Proceedings book (2017),
https://hdl.handle.net/21.15107/rcub_vinar_11916 .

TY  - JOUR
AU  - Obrenović, Marija D.
AU  - Lazarević, Đorđe R.
AU  - Dolićanin, Edin C.
AU  - Vujisić, Miloš Lj.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5450
AB  - This paper deals with the flash memory reliability in terms of the ionizing radiation effects. In fact, the reliability of flash memory depends on physico-chemical restrictions of electrostatic nature due to the effects of ionizing radiation. The presented results are actual as a high degree of integrated components miniaturization affects the memory sensitivity, while the role of memories in the solar cells management system for space flights is increasing, so that the effects of ionizing radiation may cause changes in the stored data or the physical destruction of the flash memory components.
T2  - Nuclear technology and radiation protection
T1  - Effects of Ion Beams on Flash Memory Cells
VL  - 29
IS  - 2
SP  - 116
EP  - 122
DO  - 10.2298/NTRP1402116O
ER  - 

@article{
author = "Obrenović, Marija D. and Lazarević, Đorđe R. and Dolićanin, Edin C. and Vujisić, Miloš Lj.",
year = "2014",
abstract = "This paper deals with the flash memory reliability in terms of the ionizing radiation effects. In fact, the reliability of flash memory depends on physico-chemical restrictions of electrostatic nature due to the effects of ionizing radiation. The presented results are actual as a high degree of integrated components miniaturization affects the memory sensitivity, while the role of memories in the solar cells management system for space flights is increasing, so that the effects of ionizing radiation may cause changes in the stored data or the physical destruction of the flash memory components.",
journal = "Nuclear technology and radiation protection",
title = "Effects of Ion Beams on Flash Memory Cells",
volume = "29",
number = "2",
pages = "116-122",
doi = "10.2298/NTRP1402116O"
}

Obrenović, M. D., Lazarević, Đ. R., Dolićanin, E. C.,& Vujisić, M. Lj.. (2014). Effects of Ion Beams on Flash Memory Cells. in Nuclear technology and radiation protection, 29(2), 116-122.
https://doi.org/10.2298/NTRP1402116O

Obrenović MD, Lazarević ĐR, Dolićanin EC, Vujisić ML. Effects of Ion Beams on Flash Memory Cells. in Nuclear technology and radiation protection. 2014;29(2):116-122.
doi:10.2298/NTRP1402116O .

Obrenović, Marija D., Lazarević, Đorđe R., Dolićanin, Edin C., Vujisić, Miloš Lj., "Effects of Ion Beams on Flash Memory Cells" in Nuclear technology and radiation protection, 29, no. 2 (2014):116-122,
https://doi.org/10.2298/NTRP1402116O . .

TY  - JOUR
AU  - Milosavljevic, Srdjan
AU  - Lazarević, Đorđe R.
AU  - Stanković, Koviljka
AU  - Pejović, Milić M.
AU  - Vujisić, Miloš Lj.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5660
AB  - This paper examines the effects of irradiating indium oxide films of nanoscale thickness by ion beams, when these films are in the Cooper-pair insulator state. Radiation effects are predicted on the basis of Monte Carlo simulations of ion transport. Results of numerical experiments are interpreted within the theoretical model of a Cooper-pair insulator. The study suggests that radiation-induced changes in InOx films exposed to ion beams could significantly alter their current-voltage characteristics and that a transition to a metallic state is possible, due to radiation-induced perturbation of the fine-tuned granular structure. Furthermore, incident and displaced ions can break up enough Cooper pairs in InOx films to cause dissolution of this specific insulating state.
T2  - International Journal of Photoenergy
T1  - Effects of Ion Beam Irradiation on Nanoscale InOx Cooper-Pair Insulators
DO  - 10.1155/2013/236823
ER  - 

@article{
author = "Milosavljevic, Srdjan and Lazarević, Đorđe R. and Stanković, Koviljka and Pejović, Milić M. and Vujisić, Miloš Lj.",
year = "2013",
abstract = "This paper examines the effects of irradiating indium oxide films of nanoscale thickness by ion beams, when these films are in the Cooper-pair insulator state. Radiation effects are predicted on the basis of Monte Carlo simulations of ion transport. Results of numerical experiments are interpreted within the theoretical model of a Cooper-pair insulator. The study suggests that radiation-induced changes in InOx films exposed to ion beams could significantly alter their current-voltage characteristics and that a transition to a metallic state is possible, due to radiation-induced perturbation of the fine-tuned granular structure. Furthermore, incident and displaced ions can break up enough Cooper pairs in InOx films to cause dissolution of this specific insulating state.",
journal = "International Journal of Photoenergy",
title = "Effects of Ion Beam Irradiation on Nanoscale InOx Cooper-Pair Insulators",
doi = "10.1155/2013/236823"
}

Milosavljevic, S., Lazarević, Đ. R., Stanković, K., Pejović, M. M.,& Vujisić, M. Lj.. (2013). Effects of Ion Beam Irradiation on Nanoscale InOx Cooper-Pair Insulators. in International Journal of Photoenergy.
https://doi.org/10.1155/2013/236823

Milosavljevic S, Lazarević ĐR, Stanković K, Pejović MM, Vujisić ML. Effects of Ion Beam Irradiation on Nanoscale InOx Cooper-Pair Insulators. in International Journal of Photoenergy. 2013;.
doi:10.1155/2013/236823 .

Milosavljevic, Srdjan, Lazarević, Đorđe R., Stanković, Koviljka, Pejović, Milić M., Vujisić, Miloš Lj., "Effects of Ion Beam Irradiation on Nanoscale InOx Cooper-Pair Insulators" in International Journal of Photoenergy (2013),
https://doi.org/10.1155/2013/236823 . .

TY  - JOUR
AU  - Timotijevic, Ljubinko
AU  - Fetahovic, Irfan
AU  - Lazarević, Đorđe R.
AU  - Vujisić, Miloš Lj.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5659
AB  - Effects of exposing several insulators, commonly used for various purposes in integrated circuits, to beams of protons have been investigated. Materials considered include silicon dioxide, silicon nitride, aluminium nitride, alumina, and polycarbonate (Lexan). The passage of proton beams through ultrathin layers of these materials has been modeled by Monte Carlo simulations of particle transport. Parameters that have been varied in simulations include proton energy and insulating layer thickness. Materials are compared according to both ionizing and nonionizing effects produced by the passage of protons.
T2  - International Journal of Photoenergy
T1  - Simulation of Proton Beam Effects in Thin Insulating Films
SP  - 128410
DO  - 10.1155/2013/128410
ER  - 

@article{
author = "Timotijevic, Ljubinko and Fetahovic, Irfan and Lazarević, Đorđe R. and Vujisić, Miloš Lj.",
year = "2013",
abstract = "Effects of exposing several insulators, commonly used for various purposes in integrated circuits, to beams of protons have been investigated. Materials considered include silicon dioxide, silicon nitride, aluminium nitride, alumina, and polycarbonate (Lexan). The passage of proton beams through ultrathin layers of these materials has been modeled by Monte Carlo simulations of particle transport. Parameters that have been varied in simulations include proton energy and insulating layer thickness. Materials are compared according to both ionizing and nonionizing effects produced by the passage of protons.",
journal = "International Journal of Photoenergy",
title = "Simulation of Proton Beam Effects in Thin Insulating Films",
pages = "128410",
doi = "10.1155/2013/128410"
}

Timotijevic, L., Fetahovic, I., Lazarević, Đ. R.,& Vujisić, M. Lj.. (2013). Simulation of Proton Beam Effects in Thin Insulating Films. in International Journal of Photoenergy, 128410.
https://doi.org/10.1155/2013/128410

Timotijevic L, Fetahovic I, Lazarević ĐR, Vujisić ML. Simulation of Proton Beam Effects in Thin Insulating Films. in International Journal of Photoenergy. 2013;:128410.
doi:10.1155/2013/128410 .

Timotijevic, Ljubinko, Fetahovic, Irfan, Lazarević, Đorđe R., Vujisić, Miloš Lj., "Simulation of Proton Beam Effects in Thin Insulating Films" in International Journal of Photoenergy (2013):128410,
https://doi.org/10.1155/2013/128410 . .

TY  - JOUR
AU  - Lazarević, Đorđe R.
AU  - Vujisić, Miloš Lj.
AU  - Stankovic, Koviljka Dj
AU  - Dolićanin, Edin C.
AU  - Osmokrović, Predrag V.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4771
AB  - This paper investigates possible radiation effects in the Cooper-pair insulator state of indium oxide films. Radiation effects are predicted on the basis of Monte Carlo simulations. Results of a combined theoretical and numerical analysis suggest that radiation-induced changes in the investigated films could significantly affect their current-voltage characteristics, and that a transition to a metallic state is possible, due to radiation-induced disruption of the fine-tuned granular structure. Dissociation of Cooper pairs, caused by both the incident radiation and the ions displaced within InOx films, can also destroy the conditions for this specific insulating state to subsist.
T2  - Nuclear technology and radiation protection
T1  - Radiation Hardness of Indium Oxide Films in the Cooper-Pair Insulator State
VL  - 27
IS  - 1
SP  - 40
EP  - 43
DO  - 10.2298/NTRP1201040L
ER  - 

@article{
author = "Lazarević, Đorđe R. and Vujisić, Miloš Lj. and Stankovic, Koviljka Dj and Dolićanin, Edin C. and Osmokrović, Predrag V.",
year = "2012",
abstract = "This paper investigates possible radiation effects in the Cooper-pair insulator state of indium oxide films. Radiation effects are predicted on the basis of Monte Carlo simulations. Results of a combined theoretical and numerical analysis suggest that radiation-induced changes in the investigated films could significantly affect their current-voltage characteristics, and that a transition to a metallic state is possible, due to radiation-induced disruption of the fine-tuned granular structure. Dissociation of Cooper pairs, caused by both the incident radiation and the ions displaced within InOx films, can also destroy the conditions for this specific insulating state to subsist.",
journal = "Nuclear technology and radiation protection",
title = "Radiation Hardness of Indium Oxide Films in the Cooper-Pair Insulator State",
volume = "27",
number = "1",
pages = "40-43",
doi = "10.2298/NTRP1201040L"
}

Lazarević, Đ. R., Vujisić, M. Lj., Stankovic, K. D., Dolićanin, E. C.,& Osmokrović, P. V.. (2012). Radiation Hardness of Indium Oxide Films in the Cooper-Pair Insulator State. in Nuclear technology and radiation protection, 27(1), 40-43.
https://doi.org/10.2298/NTRP1201040L

Lazarević ĐR, Vujisić ML, Stankovic KD, Dolićanin EC, Osmokrović PV. Radiation Hardness of Indium Oxide Films in the Cooper-Pair Insulator State. in Nuclear technology and radiation protection. 2012;27(1):40-43.
doi:10.2298/NTRP1201040L .

Lazarević, Đorđe R., Vujisić, Miloš Lj., Stankovic, Koviljka Dj, Dolićanin, Edin C., Osmokrović, Predrag V., "Radiation Hardness of Indium Oxide Films in the Cooper-Pair Insulator State" in Nuclear technology and radiation protection, 27, no. 1 (2012):40-43,
https://doi.org/10.2298/NTRP1201040L . .

TY  - CONF
AU  - Lazarević, Đorđe R.
AU  - Dolicanin, Edin
AU  - Iricanin, Bratislav
AU  - Vujisić, Miloš Lj.
AU  - Stanković, Koviljka
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7009
AB  - Cooper-pair insulators are materials that exhibit superconducting behavior, but under specific conditions, regarding film thickness, bias voltage, applied magnetic field, and presence of magnetic impurities, act as insulators with thermally activated Cooper pairs as charge carriers. This paper investigates possible radiation effects in thin films of such materials. Radiation effects are predicted on the basis of Monte Carlo simulations, using 2D Josephson junction array as a model of material structure. Results of a combined theoretical and numerical analysis suggest that radiation-induced change of the Josephson junction charging energy could significantly affect the current-voltage characteristics of a Cooper-pair insulator, and that a transition to a metallic state is possible, due to radiation-induced disruption of the fine-tuned granular structure. The breaking of Cooper pairs, caused by incident and displaced ions, can also destroy the conditions for this specific insulating state to exist.
T1  - Radiation Effects in Cooper Pair Insulating Thin Films
SP  - 1165
EP  - 1168
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7009
ER  - 

@conference{
author = "Lazarević, Đorđe R. and Dolicanin, Edin and Iricanin, Bratislav and Vujisić, Miloš Lj. and Stanković, Koviljka",
year = "2012",
abstract = "Cooper-pair insulators are materials that exhibit superconducting behavior, but under specific conditions, regarding film thickness, bias voltage, applied magnetic field, and presence of magnetic impurities, act as insulators with thermally activated Cooper pairs as charge carriers. This paper investigates possible radiation effects in thin films of such materials. Radiation effects are predicted on the basis of Monte Carlo simulations, using 2D Josephson junction array as a model of material structure. Results of a combined theoretical and numerical analysis suggest that radiation-induced change of the Josephson junction charging energy could significantly affect the current-voltage characteristics of a Cooper-pair insulator, and that a transition to a metallic state is possible, due to radiation-induced disruption of the fine-tuned granular structure. The breaking of Cooper pairs, caused by incident and displaced ions, can also destroy the conditions for this specific insulating state to exist.",
title = "Radiation Effects in Cooper Pair Insulating Thin Films",
pages = "1165-1168",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7009"
}

Lazarević, Đ. R., Dolicanin, E., Iricanin, B., Vujisić, M. Lj.,& Stanković, K.. (2012). Radiation Effects in Cooper Pair Insulating Thin Films. , 1165-1168.
https://hdl.handle.net/21.15107/rcub_vinar_7009

Lazarević ĐR, Dolicanin E, Iricanin B, Vujisić ML, Stanković K. Radiation Effects in Cooper Pair Insulating Thin Films. 2012;:1165-1168.
https://hdl.handle.net/21.15107/rcub_vinar_7009 .

Lazarević, Đorđe R., Dolicanin, Edin, Iricanin, Bratislav, Vujisić, Miloš Lj., Stanković, Koviljka, "Radiation Effects in Cooper Pair Insulating Thin Films" (2012):1165-1168,
https://hdl.handle.net/21.15107/rcub_vinar_7009 .

TY  - JOUR
AU  - Dekic, Sasa
AU  - Osmokrović, Predrag V.
AU  - Vujisić, Miloš Lj.
AU  - Stanković, Koviljka
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4130
AB  - This paper investigates the conditions for the applicability of the geometrical similarity law to impulse breakdown in gases, using statistical methods necessitated by the stochastic nature of the impulse breakdown voltage. Theoretical analysis in the paper is accompanied by experimental results obtained for geometrically similar systems, i.e. for systems with equal shapes of the macroscopic and microscopic electrical field. The experiments were conducted in controlled laboratory conditions, for a wide range of gas pressure and inter-electrode gap values. Two-electrode systems were used, with both homogeneous and non-homogeneous electrical fields, utilizing SF(6), N(2) and He gases as insulators. Standard lightning and switching voltage impulses were applied, as well as ramp-shaped impulses with different slopes. On the basis of the statistical processing of the obtained experimental results, conclusions regarding the conditions for the applicability of the geometrical similarity law to impulse breakdown in gases are drawn.
T2  - IEEE Transactions on Dielectrics and Electrical Insulation
T1  - Conditions for the Applicability of the Geometrical Similarity Law to Impulse Breakdown in Gases
VL  - 17
IS  - 4
SP  - 1185
EP  - 1195
DO  - 10.1109/TDEI.2010.5539689
ER  - 

@article{
author = "Dekic, Sasa and Osmokrović, Predrag V. and Vujisić, Miloš Lj. and Stanković, Koviljka",
year = "2010",
abstract = "This paper investigates the conditions for the applicability of the geometrical similarity law to impulse breakdown in gases, using statistical methods necessitated by the stochastic nature of the impulse breakdown voltage. Theoretical analysis in the paper is accompanied by experimental results obtained for geometrically similar systems, i.e. for systems with equal shapes of the macroscopic and microscopic electrical field. The experiments were conducted in controlled laboratory conditions, for a wide range of gas pressure and inter-electrode gap values. Two-electrode systems were used, with both homogeneous and non-homogeneous electrical fields, utilizing SF(6), N(2) and He gases as insulators. Standard lightning and switching voltage impulses were applied, as well as ramp-shaped impulses with different slopes. On the basis of the statistical processing of the obtained experimental results, conclusions regarding the conditions for the applicability of the geometrical similarity law to impulse breakdown in gases are drawn.",
journal = "IEEE Transactions on Dielectrics and Electrical Insulation",
title = "Conditions for the Applicability of the Geometrical Similarity Law to Impulse Breakdown in Gases",
volume = "17",
number = "4",
pages = "1185-1195",
doi = "10.1109/TDEI.2010.5539689"
}

Dekic, S., Osmokrović, P. V., Vujisić, M. Lj.,& Stanković, K.. (2010). Conditions for the Applicability of the Geometrical Similarity Law to Impulse Breakdown in Gases. in IEEE Transactions on Dielectrics and Electrical Insulation, 17(4), 1185-1195.
https://doi.org/10.1109/TDEI.2010.5539689

Dekic S, Osmokrović PV, Vujisić ML, Stanković K. Conditions for the Applicability of the Geometrical Similarity Law to Impulse Breakdown in Gases. in IEEE Transactions on Dielectrics and Electrical Insulation. 2010;17(4):1185-1195.
doi:10.1109/TDEI.2010.5539689 .

Dekic, Sasa, Osmokrović, Predrag V., Vujisić, Miloš Lj., Stanković, Koviljka, "Conditions for the Applicability of the Geometrical Similarity Law to Impulse Breakdown in Gases" in IEEE Transactions on Dielectrics and Electrical Insulation, 17, no. 4 (2010):1185-1195,
https://doi.org/10.1109/TDEI.2010.5539689 . .

TY  - JOUR
AU  - Vereb, Laslo
AU  - Osmokrović, Predrag V.
AU  - Vujisić, Miloš Lj.
AU  - Dolicanin, Cemal
AU  - Stankovic, Koviijka
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3634
AB  - 20 kV distribution networks with all its components, such as transformers, switches, cables etc., have existed and been operating safely for many decades. From an economic point of view, it would be convenient to replace the transformer-motor combination by just a single 20 kV asynchronous motor, even if the motor itself were more expensive. The cost of a transformer, facilities and maintenance gained in this way would easily cover the extra costs of a motor. Efficiency considerations also make elimination of the step-down transformer desirable. Furthermore, modern technological advances make the production of 20 kV asynchronous motors possible, which is proved by the existence of 32 kV generators. The main problem lies in overcoming the differences between the construction of the aforementioned network equipment and the high-voltage asynchronous motor. This paper analyzes the weak points in the insulation system of an asynchronous motor, and proposes improvements allowing motor supply voltage to be increased to 20 kV.
T2  - IEEE Transactions on Dielectrics and Electrical Insulation
T1  - Prospects of Constructing 20 kV Asynchronous Motors
VL  - 16
IS  - 1
SP  - 251
EP  - 256
DO  - 10.1109/TDEI.2009.4784574
ER  - 

@article{
author = "Vereb, Laslo and Osmokrović, Predrag V. and Vujisić, Miloš Lj. and Dolicanin, Cemal and Stankovic, Koviijka",
year = "2009",
abstract = "20 kV distribution networks with all its components, such as transformers, switches, cables etc., have existed and been operating safely for many decades. From an economic point of view, it would be convenient to replace the transformer-motor combination by just a single 20 kV asynchronous motor, even if the motor itself were more expensive. The cost of a transformer, facilities and maintenance gained in this way would easily cover the extra costs of a motor. Efficiency considerations also make elimination of the step-down transformer desirable. Furthermore, modern technological advances make the production of 20 kV asynchronous motors possible, which is proved by the existence of 32 kV generators. The main problem lies in overcoming the differences between the construction of the aforementioned network equipment and the high-voltage asynchronous motor. This paper analyzes the weak points in the insulation system of an asynchronous motor, and proposes improvements allowing motor supply voltage to be increased to 20 kV.",
journal = "IEEE Transactions on Dielectrics and Electrical Insulation",
title = "Prospects of Constructing 20 kV Asynchronous Motors",
volume = "16",
number = "1",
pages = "251-256",
doi = "10.1109/TDEI.2009.4784574"
}

Vereb, L., Osmokrović, P. V., Vujisić, M. Lj., Dolicanin, C.,& Stankovic, K.. (2009). Prospects of Constructing 20 kV Asynchronous Motors. in IEEE Transactions on Dielectrics and Electrical Insulation, 16(1), 251-256.
https://doi.org/10.1109/TDEI.2009.4784574

Vereb L, Osmokrović PV, Vujisić ML, Dolicanin C, Stankovic K. Prospects of Constructing 20 kV Asynchronous Motors. in IEEE Transactions on Dielectrics and Electrical Insulation. 2009;16(1):251-256.
doi:10.1109/TDEI.2009.4784574 .

Vereb, Laslo, Osmokrović, Predrag V., Vujisić, Miloš Lj., Dolicanin, Cemal, Stankovic, Koviijka, "Prospects of Constructing 20 kV Asynchronous Motors" in IEEE Transactions on Dielectrics and Electrical Insulation, 16, no. 1 (2009):251-256,
https://doi.org/10.1109/TDEI.2009.4784574 . .

TY  - JOUR
AU  - Stanković, Koviljka
AU  - Vujisić, Miloš Lj.
AU  - Dolicanin, Edin
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3251
AB  - The wide-spread use of semiconductor and gas-filled diodes for non-linear over-voltage protection results in a variety of possible working conditions. It is therefore essential to have a thorough insight into their reliability in exploitation environments which imply exposure to ionizing radiation. The aim of this paper is to investigate the influence of irradiation on over-voltage diode characteristics by exposing the diodes to californium-252 combined neutron/gamma radiation field. The irradiation of semiconductor over-voltage diodes causes severe degradation of their protection characteristics. On the other hand, gas-filled over-voltage diodes exhibit a temporal improvement of performance. The results are presented with the accompanying theoretical interpretations of the observed changes in over-voltage diode behaviour, based on the interaction of radiation with materials constituting the diodes.
T2  - Nuclear technology and radiation protection
T1  - Reliability of Semiconductor and Gas-Filled Diodes for Over-Voltage Protection Exposed to Ionizing Radiation
VL  - 24
IS  - 2
SP  - 132
EP  - 137
DO  - 10.2298/NTRP0902132S
ER  - 

@article{
author = "Stanković, Koviljka and Vujisić, Miloš Lj. and Dolicanin, Edin",
year = "2009",
abstract = "The wide-spread use of semiconductor and gas-filled diodes for non-linear over-voltage protection results in a variety of possible working conditions. It is therefore essential to have a thorough insight into their reliability in exploitation environments which imply exposure to ionizing radiation. The aim of this paper is to investigate the influence of irradiation on over-voltage diode characteristics by exposing the diodes to californium-252 combined neutron/gamma radiation field. The irradiation of semiconductor over-voltage diodes causes severe degradation of their protection characteristics. On the other hand, gas-filled over-voltage diodes exhibit a temporal improvement of performance. The results are presented with the accompanying theoretical interpretations of the observed changes in over-voltage diode behaviour, based on the interaction of radiation with materials constituting the diodes.",
journal = "Nuclear technology and radiation protection",
title = "Reliability of Semiconductor and Gas-Filled Diodes for Over-Voltage Protection Exposed to Ionizing Radiation",
volume = "24",
number = "2",
pages = "132-137",
doi = "10.2298/NTRP0902132S"
}

Stanković, K., Vujisić, M. Lj.,& Dolicanin, E.. (2009). Reliability of Semiconductor and Gas-Filled Diodes for Over-Voltage Protection Exposed to Ionizing Radiation. in Nuclear technology and radiation protection, 24(2), 132-137.
https://doi.org/10.2298/NTRP0902132S

Stanković K, Vujisić ML, Dolicanin E. Reliability of Semiconductor and Gas-Filled Diodes for Over-Voltage Protection Exposed to Ionizing Radiation. in Nuclear technology and radiation protection. 2009;24(2):132-137.
doi:10.2298/NTRP0902132S .

Stanković, Koviljka, Vujisić, Miloš Lj., Dolicanin, Edin, "Reliability of Semiconductor and Gas-Filled Diodes for Over-Voltage Protection Exposed to Ionizing Radiation" in Nuclear technology and radiation protection, 24, no. 2 (2009):132-137,
https://doi.org/10.2298/NTRP0902132S . .

TY  - JOUR
AU  - Vujisić, Miloš Lj.
AU  - Stanković, Koviljka
AU  - Vasić, Aleksandra
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3686
AB  - This paper compares the reliability of standard commercial Erasable Programmable Read Only Memory (EPROM) and Electrically Erasable Programmable Read Only Memory ((EPROM)-P-2) components exposed to gamma rays. The results obtained for CMOS-based EPROM (NM27C010) and (EPROM)-P-2 (NM93CS46) components provide the evidence that EPROMs have greater radiation hardness than (EPROMS)-P-2. Moreover, the changes in EPROMs are reversible, and after erasure and reprogramming all EPROM components restore their functionality. On the other hand, changes in (EPROMs)-P-2 are irreversible. The obtained results are analyzed and interpreted on the basis of gamma ray interaction with the CMOS structure.
T2  - Nuclear technology and radiation protection
T1  - Comparison of Gamma Ray Effects on Eproms and (Eproms)-P-2
VL  - 24
IS  - 1
SP  - 61
EP  - 67
DO  - 10.2298/NTRP0901061V
ER  - 

@article{
author = "Vujisić, Miloš Lj. and Stanković, Koviljka and Vasić, Aleksandra",
year = "2009",
abstract = "This paper compares the reliability of standard commercial Erasable Programmable Read Only Memory (EPROM) and Electrically Erasable Programmable Read Only Memory ((EPROM)-P-2) components exposed to gamma rays. The results obtained for CMOS-based EPROM (NM27C010) and (EPROM)-P-2 (NM93CS46) components provide the evidence that EPROMs have greater radiation hardness than (EPROMS)-P-2. Moreover, the changes in EPROMs are reversible, and after erasure and reprogramming all EPROM components restore their functionality. On the other hand, changes in (EPROMs)-P-2 are irreversible. The obtained results are analyzed and interpreted on the basis of gamma ray interaction with the CMOS structure.",
journal = "Nuclear technology and radiation protection",
title = "Comparison of Gamma Ray Effects on Eproms and (Eproms)-P-2",
volume = "24",
number = "1",
pages = "61-67",
doi = "10.2298/NTRP0901061V"
}

Vujisić, M. Lj., Stanković, K.,& Vasić, A.. (2009). Comparison of Gamma Ray Effects on Eproms and (Eproms)-P-2. in Nuclear technology and radiation protection, 24(1), 61-67.
https://doi.org/10.2298/NTRP0901061V

Vujisić ML, Stanković K, Vasić A. Comparison of Gamma Ray Effects on Eproms and (Eproms)-P-2. in Nuclear technology and radiation protection. 2009;24(1):61-67.
doi:10.2298/NTRP0901061V .

Vujisić, Miloš Lj., Stanković, Koviljka, Vasić, Aleksandra, "Comparison of Gamma Ray Effects on Eproms and (Eproms)-P-2" in Nuclear technology and radiation protection, 24, no. 1 (2009):61-67,
https://doi.org/10.2298/NTRP0901061V . .

TY  - JOUR
AU  - Stankovic, Koviijka
AU  - Pešić, Miroslav
AU  - Osmokrović, Predrag V.
AU  - Vujisić, Miloš Lj.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3501
AB  - This paper investigates, through theory and experiment, the applicability of the results obtained in laboratory tests of relatively short duration performed on model structures, as a part of the process of designing high-voltage equipment intended for lasting exploitation. Possibilities and limititions of applying these results to practical structures are examined using the methods of mathematical statistics. Special attention is devoted to the influence of electrode surface enlargement and pulse load (overvoltage) prolongation on the statistical behaviour of the pulse breakdown voltage random variable, expressed in the form of the enlargement law. In the theoretical part of the paper, the general four-dimensional (space-time) enlargement law is derived, along with its simplified three-dimensional (surface-time) variant. In the part of the paper related to the experiment, performed with the aim of testing the applicability of the derived surface-time enlargement law to SF6 gas-insulated two-electrode systems, a description of the experimental equipment and procedure is provided, along with the details of measurement data processing. Comparison of experimental results with those predicted by the surface-time enlargement law proved its validity for a two-electrode configuration with a homogenous and radial electric field, insulated by SF6 gas under pressure (with gas pressure as a parameter).
T2  - IEEE Transactions on Dielectrics and Electrical Insulation
T1  - Surface-time enlargement law for gas breakdown
VL  - 15
IS  - 4
SP  - 994
EP  - 1005
DO  - 10.1109/TDEI.2008.4591220
ER  - 

@article{
author = "Stankovic, Koviijka and Pešić, Miroslav and Osmokrović, Predrag V. and Vujisić, Miloš Lj.",
year = "2008",
abstract = "This paper investigates, through theory and experiment, the applicability of the results obtained in laboratory tests of relatively short duration performed on model structures, as a part of the process of designing high-voltage equipment intended for lasting exploitation. Possibilities and limititions of applying these results to practical structures are examined using the methods of mathematical statistics. Special attention is devoted to the influence of electrode surface enlargement and pulse load (overvoltage) prolongation on the statistical behaviour of the pulse breakdown voltage random variable, expressed in the form of the enlargement law. In the theoretical part of the paper, the general four-dimensional (space-time) enlargement law is derived, along with its simplified three-dimensional (surface-time) variant. In the part of the paper related to the experiment, performed with the aim of testing the applicability of the derived surface-time enlargement law to SF6 gas-insulated two-electrode systems, a description of the experimental equipment and procedure is provided, along with the details of measurement data processing. Comparison of experimental results with those predicted by the surface-time enlargement law proved its validity for a two-electrode configuration with a homogenous and radial electric field, insulated by SF6 gas under pressure (with gas pressure as a parameter).",
journal = "IEEE Transactions on Dielectrics and Electrical Insulation",
title = "Surface-time enlargement law for gas breakdown",
volume = "15",
number = "4",
pages = "994-1005",
doi = "10.1109/TDEI.2008.4591220"
}

Stankovic, K., Pešić, M., Osmokrović, P. V.,& Vujisić, M. Lj.. (2008). Surface-time enlargement law for gas breakdown. in IEEE Transactions on Dielectrics and Electrical Insulation, 15(4), 994-1005.
https://doi.org/10.1109/TDEI.2008.4591220

Stankovic K, Pešić M, Osmokrović PV, Vujisić ML. Surface-time enlargement law for gas breakdown. in IEEE Transactions on Dielectrics and Electrical Insulation. 2008;15(4):994-1005.
doi:10.1109/TDEI.2008.4591220 .

Stankovic, Koviijka, Pešić, Miroslav, Osmokrović, Predrag V., Vujisić, Miloš Lj., "Surface-time enlargement law for gas breakdown" in IEEE Transactions on Dielectrics and Electrical Insulation, 15, no. 4 (2008):994-1005,
https://doi.org/10.1109/TDEI.2008.4591220 . .

TY  - JOUR
AU  - Osmokrović, Predrag V.
AU  - Ilić, Gvozden
AU  - Dolicanin, Cemal
AU  - Stanković, Koviljka
AU  - Vujisić, Miloš Lj.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3608
AB  - In this paper we expound on the procedure of determining the pulse tolerable voltage characteristic in the voltage-versus-time frame, by applying the time enlargement law to the breakdown time random variable, and using a single statistical sample for this variable, obtained through experiments with a predefined shape of the voltage load. The suggested algorithm has been experimentally tested for Ar, N(2), and SF(6) gases, in the pat product (pressure x interelectrode gap) range from 10(-4) to 300 bar mm. The testing was performed by comparing the pulse tolerable voltage characteristic of a two-electrode configuration obtained by applying a particular shape of the pulse voltage load with the values corresponding to other pulse voltage shapes, covering a wide range of frequencies. Satisfactory results have been obtained concerning the applicability of the procedure, with certain minor limitations, which are pointed out. [DOI: 10.1143/JJAP.47.8928]
T2  - Japanese Journal of Applied Physics
T1  - Determination of Pulse Tolerable Voltage in Gas-Insulated Systems
VL  - 47
IS  - 12
SP  - 8928
EP  - 8934
DO  - 10.1143/JJAP.47.8928
ER  - 

@article{
author = "Osmokrović, Predrag V. and Ilić, Gvozden and Dolicanin, Cemal and Stanković, Koviljka and Vujisić, Miloš Lj.",
year = "2008",
abstract = "In this paper we expound on the procedure of determining the pulse tolerable voltage characteristic in the voltage-versus-time frame, by applying the time enlargement law to the breakdown time random variable, and using a single statistical sample for this variable, obtained through experiments with a predefined shape of the voltage load. The suggested algorithm has been experimentally tested for Ar, N(2), and SF(6) gases, in the pat product (pressure x interelectrode gap) range from 10(-4) to 300 bar mm. The testing was performed by comparing the pulse tolerable voltage characteristic of a two-electrode configuration obtained by applying a particular shape of the pulse voltage load with the values corresponding to other pulse voltage shapes, covering a wide range of frequencies. Satisfactory results have been obtained concerning the applicability of the procedure, with certain minor limitations, which are pointed out. [DOI: 10.1143/JJAP.47.8928]",
journal = "Japanese Journal of Applied Physics",
title = "Determination of Pulse Tolerable Voltage in Gas-Insulated Systems",
volume = "47",
number = "12",
pages = "8928-8934",
doi = "10.1143/JJAP.47.8928"
}

Osmokrović, P. V., Ilić, G., Dolicanin, C., Stanković, K.,& Vujisić, M. Lj.. (2008). Determination of Pulse Tolerable Voltage in Gas-Insulated Systems. in Japanese Journal of Applied Physics, 47(12), 8928-8934.
https://doi.org/10.1143/JJAP.47.8928

Osmokrović PV, Ilić G, Dolicanin C, Stanković K, Vujisić ML. Determination of Pulse Tolerable Voltage in Gas-Insulated Systems. in Japanese Journal of Applied Physics. 2008;47(12):8928-8934.
doi:10.1143/JJAP.47.8928 .

Osmokrović, Predrag V., Ilić, Gvozden, Dolicanin, Cemal, Stanković, Koviljka, Vujisić, Miloš Lj., "Determination of Pulse Tolerable Voltage in Gas-Insulated Systems" in Japanese Journal of Applied Physics, 47, no. 12 (2008):8928-8934,
https://doi.org/10.1143/JJAP.47.8928 . .

TY  - JOUR
AU  - Stanković, Koviljka
AU  - Vujisić, Miloš Lj.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3542
AB  - This paper discusses the influence of radiation energy and angle of incidence as possible sources of uncertainties in measurements performed by GM counters. Based on the detection efficiency of GM counters, it has been concluded that the energy of incident radiation does not contribute to the overall uncertainty The angle of incident radiation does contribute to overall uncertainty, but only in the case of gamma radiation detection. In that case, the uncertainty should be determined by using geometrical probability.
T2  - Nuclear technology and radiation protection
T1  - Influence of Radiation Energy and Angle of Incidence on the Uncertainty in Measurements By Gm Counters
VL  - 23
IS  - 1
SP  - 41
EP  - 42
DO  - 10.2298/NTRP0801041S
ER  - 

@article{
author = "Stanković, Koviljka and Vujisić, Miloš Lj.",
year = "2008",
abstract = "This paper discusses the influence of radiation energy and angle of incidence as possible sources of uncertainties in measurements performed by GM counters. Based on the detection efficiency of GM counters, it has been concluded that the energy of incident radiation does not contribute to the overall uncertainty The angle of incident radiation does contribute to overall uncertainty, but only in the case of gamma radiation detection. In that case, the uncertainty should be determined by using geometrical probability.",
journal = "Nuclear technology and radiation protection",
title = "Influence of Radiation Energy and Angle of Incidence on the Uncertainty in Measurements By Gm Counters",
volume = "23",
number = "1",
pages = "41-42",
doi = "10.2298/NTRP0801041S"
}

Stanković, K.,& Vujisić, M. Lj.. (2008). Influence of Radiation Energy and Angle of Incidence on the Uncertainty in Measurements By Gm Counters. in Nuclear technology and radiation protection, 23(1), 41-42.
https://doi.org/10.2298/NTRP0801041S

Stanković K, Vujisić ML. Influence of Radiation Energy and Angle of Incidence on the Uncertainty in Measurements By Gm Counters. in Nuclear technology and radiation protection. 2008;23(1):41-42.
doi:10.2298/NTRP0801041S .

Stanković, Koviljka, Vujisić, Miloš Lj., "Influence of Radiation Energy and Angle of Incidence on the Uncertainty in Measurements By Gm Counters" in Nuclear technology and radiation protection, 23, no. 1 (2008):41-42,
https://doi.org/10.2298/NTRP0801041S . .

TY  - CONF
AU  - Lončar, Boris
AU  - Kartalović, Nenad
AU  - Stanković, Srboljub
AU  - Vujisić, Miloš
AU  - Osmokrović, Predrag
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12259
AB  - Cilj ovog rada je da se ispita uticaj materijala elektroda na impulsnu karakteristiku modela gasnog odvodnika prenapona u polju gama i X zračenja. Pokazano je da oba tipa zračenja dovode do povećanja brzine odziva odvodnika. Dobijeni rezultati pokazuju da je optimalno rešenje model odvodnika sa elektrodama od aluminijuma.
AB  - The aim of this paper is to investigate the influence of electrode material on the gas-filled surge arresters' model pulse shape characteristic in gamma and X radiation field. We found that both radiations have increased gas filled surge arresters' response time. The obtained results show that the optimal solution for GFSA model is with Al electrodes.
PB  - Beograd : Društvo za ETRAN
C3  - ETRAN : 51. konferencija ETRAN-a : Elektronski zbornik radova
T1  - Uticaj materijala elektroda na brzinu odziva gasnog odvodnika prenapona u polju gama i X zračenja
T1  - The influence of electrode material on gas-filled surge arresters response time in gamma and X radiation field
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12259
ER  - 

@conference{
author = "Lončar, Boris and Kartalović, Nenad and Stanković, Srboljub and Vujisić, Miloš and Osmokrović, Predrag",
year = "2007",
abstract = "Cilj ovog rada je da se ispita uticaj materijala elektroda na impulsnu karakteristiku modela gasnog odvodnika prenapona u polju gama i X zračenja. Pokazano je da oba tipa zračenja dovode do povećanja brzine odziva odvodnika. Dobijeni rezultati pokazuju da je optimalno rešenje model odvodnika sa elektrodama od aluminijuma., The aim of this paper is to investigate the influence of electrode material on the gas-filled surge arresters' model pulse shape characteristic in gamma and X radiation field. We found that both radiations have increased gas filled surge arresters' response time. The obtained results show that the optimal solution for GFSA model is with Al electrodes.",
publisher = "Beograd : Društvo za ETRAN",
journal = "ETRAN : 51. konferencija ETRAN-a : Elektronski zbornik radova",
title = "Uticaj materijala elektroda na brzinu odziva gasnog odvodnika prenapona u polju gama i X zračenja, The influence of electrode material on gas-filled surge arresters response time in gamma and X radiation field",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12259"
}

Lončar, B., Kartalović, N., Stanković, S., Vujisić, M.,& Osmokrović, P.. (2007). Uticaj materijala elektroda na brzinu odziva gasnog odvodnika prenapona u polju gama i X zračenja. in ETRAN : 51. konferencija ETRAN-a : Elektronski zbornik radova
Beograd : Društvo za ETRAN..
https://hdl.handle.net/21.15107/rcub_vinar_12259

Lončar B, Kartalović N, Stanković S, Vujisić M, Osmokrović P. Uticaj materijala elektroda na brzinu odziva gasnog odvodnika prenapona u polju gama i X zračenja. in ETRAN : 51. konferencija ETRAN-a : Elektronski zbornik radova. 2007;.
https://hdl.handle.net/21.15107/rcub_vinar_12259 .

Lončar, Boris, Kartalović, Nenad, Stanković, Srboljub, Vujisić, Miloš, Osmokrović, Predrag, "Uticaj materijala elektroda na brzinu odziva gasnog odvodnika prenapona u polju gama i X zračenja" in ETRAN : 51. konferencija ETRAN-a : Elektronski zbornik radova (2007),
https://hdl.handle.net/21.15107/rcub_vinar_12259 .