TY  - JOUR
AU  - Wang, Hulin
AU  - Li, Weijun
AU  - Gloginjić, Marko
AU  - Petrović, Srđan
AU  - Krupska, Tetyana V.
AU  - Turov, Vladimir V.
AU  - Zhao, Jialong
AU  - Yang, Weiyou
AU  - Du, Zhentao
AU  - Chen, Shanliang
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12999
AB  - Emerging photoelectrochemical (PEC) photodetectors (PDs) have notable advantages over conventional PDs and have attracted extensive attention. However, harsh liquid environments, such as those with high corrosivity and attenuation, substantially restrict their widespread application. Moreover, most PEC PDs are constructed by assembling numerous nanostructures on current collector substrates, which inevitably contain abundant interfaces and defects, thus greatly weakening the properties of PDs. To address these challenges, a high-performance pH-universal PEC ultraviolet (UV) PD based on a whole single-crystal integrated self-supporting 4H-SiC nanopore array photoelectrode is constructed, which is fabricated using a two-step anodic oxidation approach. The PD exhibits excellent photodetection behavior, with high responsivity (218.77 mA W−1), detectivity (6.64 × 1013 Jones), external quantum efficiency (72.47%), and rapid rise/decay times (17/48 ms) under 375 nm light illumination with a low intensity of 0.15 mW cm−2 and a bias voltage of 0.6 V, which is fall in the state-of-the-art of the wide-bandgap semiconductor-based PDs reported thus far. Furthermore, the SiC PEC PD exhibits excellent photoresponse and long-term operational stability in pH-universal liquid environments. The improved photodetection performance of the SiC PEC PD is primarily attributed to the synergistic effect of the nanopore array structure, integrated self-supporting configuration, and single-crystal structure of the whole photoelectrode.
T2  - Small
T1  - High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays
SP  - 2400045
DO  - 10.1002/smll.202400045
ER  - 

@article{
author = "Wang, Hulin and Li, Weijun and Gloginjić, Marko and Petrović, Srđan and Krupska, Tetyana V. and Turov, Vladimir V. and Zhao, Jialong and Yang, Weiyou and Du, Zhentao and Chen, Shanliang",
year = "2024",
abstract = "Emerging photoelectrochemical (PEC) photodetectors (PDs) have notable advantages over conventional PDs and have attracted extensive attention. However, harsh liquid environments, such as those with high corrosivity and attenuation, substantially restrict their widespread application. Moreover, most PEC PDs are constructed by assembling numerous nanostructures on current collector substrates, which inevitably contain abundant interfaces and defects, thus greatly weakening the properties of PDs. To address these challenges, a high-performance pH-universal PEC ultraviolet (UV) PD based on a whole single-crystal integrated self-supporting 4H-SiC nanopore array photoelectrode is constructed, which is fabricated using a two-step anodic oxidation approach. The PD exhibits excellent photodetection behavior, with high responsivity (218.77 mA W−1), detectivity (6.64 × 1013 Jones), external quantum efficiency (72.47%), and rapid rise/decay times (17/48 ms) under 375 nm light illumination with a low intensity of 0.15 mW cm−2 and a bias voltage of 0.6 V, which is fall in the state-of-the-art of the wide-bandgap semiconductor-based PDs reported thus far. Furthermore, the SiC PEC PD exhibits excellent photoresponse and long-term operational stability in pH-universal liquid environments. The improved photodetection performance of the SiC PEC PD is primarily attributed to the synergistic effect of the nanopore array structure, integrated self-supporting configuration, and single-crystal structure of the whole photoelectrode.",
journal = "Small",
title = "High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays",
pages = "2400045",
doi = "10.1002/smll.202400045"
}

Wang, H., Li, W., Gloginjić, M., Petrović, S., Krupska, T. V., Turov, V. V., Zhao, J., Yang, W., Du, Z.,& Chen, S.. (2024). High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays. in Small, 2400045.
https://doi.org/10.1002/smll.202400045

Wang H, Li W, Gloginjić M, Petrović S, Krupska TV, Turov VV, Zhao J, Yang W, Du Z, Chen S. High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays. in Small. 2024;:2400045.
doi:10.1002/smll.202400045 .

Wang, Hulin, Li, Weijun, Gloginjić, Marko, Petrović, Srđan, Krupska, Tetyana V., Turov, Vladimir V., Zhao, Jialong, Yang, Weiyou, Du, Zhentao, Chen, Shanliang, "High‐Sensitivity Photoelectrochemical Ultraviolet Photodetector with Stable pH‐Universal Adaptability Based on Whole Single‐Crystal Integrated Self‐Supporting 4                    H                    ‐SiC Nanoarrays" in Small (2024):2400045,
https://doi.org/10.1002/smll.202400045 . .

TY  - JOUR
AU  - Starčević, Nikola
AU  - Petrović, Srđan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12877
AB  - This study investigates the effect of crystal electrons on the angular distribution of channeled protons passing through a thin silicon crystal. The effect of crystal electrons on the 2 MeV proton beam channeled through a thin Si crystal plays an important role in the experimentally observed angular distributions. Using the crystal rainbow effect, we have morphologically compared the experimental and theoretical angular distributions of channeled protons and corresponding rainbow lines, with and without the effect of crystal electrons. Our results demonstrate that the influence of crystal electrons affects the angular focus of the channeled ions in the vicinity of the rainbow lines, which are the envelope of this angular distribution. These findings provide insights into the energy loss mechanisms for protons channeled through thin silicon crystals and can have implications for future studies in ion beam physics.
AB  - Ova studija istra`uje efekat elektrona kristala na ugaonu raspodelu protona kanalisanih kroz tanki kristal silicijuma. Uticaj elektrona kristala na snop kanalisanih protona energije 2 MeV kroz tanak kristal Si igra va`nu ulogu u eksperimentalno dobijenim ugaonim raspodelama. Koriste}i efekat kristalne duge, morfolo{ki smo uporedili eksperimentalne i teorijske ugaone distribucije kanalisanih protona i odgovaraju}ih linija duge, sa i bez uticaja elektrona kristala. Na{i rezultati pokazuju da uticaj elektrona kristala uti~e na ugaoni fokus kanalisanih jona u okolini linija duge, koje predstavqaju skelet ugaone raspodele. Ovi rezultati pru`aju uvid u mehanizme energijskih gubitka protona kanalisanih kroz tanki kristal silicijuma i mogu imati implikacije za budu}e studije u fizici jonskog snopa.
T2  - Nuclear Technology and Radiation Protection
T1  - Influence of the ion beam interaction with the crystal electrons on the angular distribution of channeled ions
T1  - Uticaj  interakcije  jonskog  snopa  sa  elektronima kristala  na  ugaonu  raspodelu  kanalisanih  jona
VL  - 38
IS  - 3
SP  - 162
EP  - 168
DO  - 10.2298/NTRP2303162S
ER  - 

@article{
author = "Starčević, Nikola and Petrović, Srđan",
year = "2023",
abstract = "This study investigates the effect of crystal electrons on the angular distribution of channeled protons passing through a thin silicon crystal. The effect of crystal electrons on the 2 MeV proton beam channeled through a thin Si crystal plays an important role in the experimentally observed angular distributions. Using the crystal rainbow effect, we have morphologically compared the experimental and theoretical angular distributions of channeled protons and corresponding rainbow lines, with and without the effect of crystal electrons. Our results demonstrate that the influence of crystal electrons affects the angular focus of the channeled ions in the vicinity of the rainbow lines, which are the envelope of this angular distribution. These findings provide insights into the energy loss mechanisms for protons channeled through thin silicon crystals and can have implications for future studies in ion beam physics., Ova studija istra`uje efekat elektrona kristala na ugaonu raspodelu protona kanalisanih kroz tanki kristal silicijuma. Uticaj elektrona kristala na snop kanalisanih protona energije 2 MeV kroz tanak kristal Si igra va`nu ulogu u eksperimentalno dobijenim ugaonim raspodelama. Koriste}i efekat kristalne duge, morfolo{ki smo uporedili eksperimentalne i teorijske ugaone distribucije kanalisanih protona i odgovaraju}ih linija duge, sa i bez uticaja elektrona kristala. Na{i rezultati pokazuju da uticaj elektrona kristala uti~e na ugaoni fokus kanalisanih jona u okolini linija duge, koje predstavqaju skelet ugaone raspodele. Ovi rezultati pru`aju uvid u mehanizme energijskih gubitka protona kanalisanih kroz tanki kristal silicijuma i mogu imati implikacije za budu}e studije u fizici jonskog snopa.",
journal = "Nuclear Technology and Radiation Protection",
title = "Influence of the ion beam interaction with the crystal electrons on the angular distribution of channeled ions, Uticaj  interakcije  jonskog  snopa  sa  elektronima kristala  na  ugaonu  raspodelu  kanalisanih  jona",
volume = "38",
number = "3",
pages = "162-168",
doi = "10.2298/NTRP2303162S"
}

Starčević, N.,& Petrović, S.. (2023). Influence of the ion beam interaction with the crystal electrons on the angular distribution of channeled ions. in Nuclear Technology and Radiation Protection, 38(3), 162-168.
https://doi.org/10.2298/NTRP2303162S

Starčević N, Petrović S. Influence of the ion beam interaction with the crystal electrons on the angular distribution of channeled ions. in Nuclear Technology and Radiation Protection. 2023;38(3):162-168.
doi:10.2298/NTRP2303162S .

Starčević, Nikola, Petrović, Srđan, "Influence of the ion beam interaction with the crystal electrons on the angular distribution of channeled ions" in Nuclear Technology and Radiation Protection, 38, no. 3 (2023):162-168,
https://doi.org/10.2298/NTRP2303162S . .

TY  - JOUR
AU  - Starčević, Nikola
AU  - Petrović, Srđan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10870
AB  - This study is devoted to the construction of the universal ion–crystal interaction potential in proton transmission through very thin crystals. We show how to obtain the interaction potential by using the crystal rainbow theory and rainbows’ morphological analysis in the proton transmission angular plane. By adjusting the shapes of rainbow lines, we modified the Molière’s interaction potential to make it accurate in all regions of the crystal channels. This procedure was based on our previous experimental and theoretical works. As a result, the two axial channeling directions can be treated in the same way leading to more consistent values of the fitting parameters in the ion–atom interaction potential. We obtained the universal rainbow ion–crystal interaction potential for very thin cubic crystals in the (001) and (111) orientations in the case of transmission channeling of 2 MeV proton beam.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Universal axial rainbow channeling interaction potential
VL  - 77
IS  - 4
SP  - 61
DO  - 10.1140/epjd/s10053-023-00641-5
ER  - 

@article{
author = "Starčević, Nikola and Petrović, Srđan",
year = "2023",
abstract = "This study is devoted to the construction of the universal ion–crystal interaction potential in proton transmission through very thin crystals. We show how to obtain the interaction potential by using the crystal rainbow theory and rainbows’ morphological analysis in the proton transmission angular plane. By adjusting the shapes of rainbow lines, we modified the Molière’s interaction potential to make it accurate in all regions of the crystal channels. This procedure was based on our previous experimental and theoretical works. As a result, the two axial channeling directions can be treated in the same way leading to more consistent values of the fitting parameters in the ion–atom interaction potential. We obtained the universal rainbow ion–crystal interaction potential for very thin cubic crystals in the (001) and (111) orientations in the case of transmission channeling of 2 MeV proton beam.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Universal axial rainbow channeling interaction potential",
volume = "77",
number = "4",
pages = "61",
doi = "10.1140/epjd/s10053-023-00641-5"
}

Starčević, N.,& Petrović, S.. (2023). Universal axial rainbow channeling interaction potential. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 77(4), 61.
https://doi.org/10.1140/epjd/s10053-023-00641-5

Starčević N, Petrović S. Universal axial rainbow channeling interaction potential. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2023;77(4):61.
doi:10.1140/epjd/s10053-023-00641-5 .

Starčević, Nikola, Petrović, Srđan, "Universal axial rainbow channeling interaction potential" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 77, no. 4 (2023):61,
https://doi.org/10.1140/epjd/s10053-023-00641-5 . .

TY  - CONF
AU  - Erich, Marko
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondrej
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11068
AB  - 6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence
VL  - 2778
IS  - 1
SP  - 060002
DO  - 10.1063/5.0136670
ER  - 

@conference{
author = "Erich, Marko and Gloginjić, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Nečas, Vladimír and Filová, Vendula and Katovský, Karel and Štastný, Ondrej and Petrović, Srđan M.",
year = "2023",
abstract = "6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence",
volume = "2778",
number = "1",
pages = "060002",
doi = "10.1063/5.0136670"
}

Erich, M., Gloginjić, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Nečas, V., Filová, V., Katovský, K., Štastný, O.,& Petrović, S. M.. (2023). Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 060002.
https://doi.org/10.1063/5.0136670

Erich M, Gloginjić M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Nečas V, Filová V, Katovský K, Štastný O, Petrović SM. Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):060002.
doi:10.1063/5.0136670 .

Erich, Marko, Gloginjić, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Nečas, Vladimír, Filová, Vendula, Katovský, Karel, Štastný, Ondrej, Petrović, Srđan M., "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):060002,
https://doi.org/10.1063/5.0136670 . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Nečas, Vladimír
AU  - Štastný, Ondrej
AU  - Katovský, Karel
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
AU  - Gloginjić, Marko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11069
AB  - The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment
VL  - 2778
IS  - 1
SP  - 050002
DO  - 10.1063/5.0135854
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Filová, Vendula and Nečas, Vladimír and Štastný, Ondrej and Katovský, Karel and Mravik, Željko and Erich, Marko and Petrović, Srđan M. and Gloginjić, Marko",
year = "2023",
abstract = "The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment",
volume = "2778",
number = "1",
pages = "050002",
doi = "10.1063/5.0135854"
}

Čerba, Š., Vrban, B., Lüley, J., Filová, V., Nečas, V., Štastný, O., Katovský, K., Mravik, Ž., Erich, M., Petrović, S. M.,& Gloginjić, M.. (2023). Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050002.
https://doi.org/10.1063/5.0135854

Čerba Š, Vrban B, Lüley J, Filová V, Nečas V, Štastný O, Katovský K, Mravik Ž, Erich M, Petrović SM, Gloginjić M. Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050002.
doi:10.1063/5.0135854 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Filová, Vendula, Nečas, Vladimír, Štastný, Ondrej, Katovský, Karel, Mravik, Željko, Erich, Marko, Petrović, Srđan M., Gloginjić, Marko, "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050002,
https://doi.org/10.1063/5.0135854 . .

TY  - CONF
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11070
AB  - In this work the crystal rainbow effect is described. Its application for determination of the ion-solid interaction potential, which is one of basic problem in ion-solid interaction, is presented. The crystal rainbow effect occurs in transmission of ions through channels of a crystal. We show that it is possible, by measuring the angular distribution of transmitted channeled ions, to establish a novel analytical method for determination of the ion-solid interaction potential.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Application of the crystal rainbow effect as a basis for a nuclear analytical method
VL  - 2778
IS  - 1
SP  - 050006
DO  - 10.1063/5.0135865
ER  - 

@conference{
author = "Petrović, Srđan M.",
year = "2023",
abstract = "In this work the crystal rainbow effect is described. Its application for determination of the ion-solid interaction potential, which is one of basic problem in ion-solid interaction, is presented. The crystal rainbow effect occurs in transmission of ions through channels of a crystal. We show that it is possible, by measuring the angular distribution of transmitted channeled ions, to establish a novel analytical method for determination of the ion-solid interaction potential.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Application of the crystal rainbow effect as a basis for a nuclear analytical method",
volume = "2778",
number = "1",
pages = "050006",
doi = "10.1063/5.0135865"
}

Petrović, S. M.. (2023). Application of the crystal rainbow effect as a basis for a nuclear analytical method. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050006.
https://doi.org/10.1063/5.0135865

Petrović SM. Application of the crystal rainbow effect as a basis for a nuclear analytical method. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050006.
doi:10.1063/5.0135865 .

Petrović, Srđan M., "Application of the crystal rainbow effect as a basis for a nuclear analytical method" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050006,
https://doi.org/10.1063/5.0135865 . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Skuratov, Vladimir A.
AU  - Kirilkin, Nikita S.
AU  - Kokkoris, Mike
AU  - Fazinić, Stjepko
AU  - Karlušić, Marko
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11071
AB  - Magnesium fluoride (MgF2) single crystal has been widely used as a material for application in optics due to its excellent properties like birefringence, wide range of transparency and low refractive index. As such, MgF2 has been proposed for planar waveguide structures. Ion implantation method was frequently used for planar waveguide production due to its ability to modulate optical properties by introduction of impurities and defects in crystal lattice. In all optics fabrication processes, there are demands for a precise control of optical characteristics modulation and hence the need for precise distribution of implanted impurities and induced damage. In this study, 4 MeV C3+ ions with the fluence of 5×1015 ions/cm2 were implanted in (001) axial direction of MgF2 single crystal. In order to determine the damage depth distribution in the crystal sample, photoluminescence (PL) spectroscopy was proposed as a method of evaluation. PL spectroscopy was used as a convenient method for damage investigation of transparent and semi-transparent samples. The cross-section of the implanted zone was mapped with the step of 0.34 µm and the variations in the spectra were investigated. It was shown that intensity evolution of two prominent wide bands with the intensity maximums at about 590 nm and 733 nm can be used for damage depth distribution estimation. Comparing the relative changes of derivatives of the band’s intensities, data related to the damage depth distribution were obtained. Obtained distribution was compared with the SRIM calculation of displacement damage. Considering the difference in implantation direction, good agreement with SRIM results was obtained. As a consequence of ion channeling, it was shown that damage distribution is extended deeper (for about 20%).
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy
VL  - 2778
IS  - 1
SP  - 040007
DO  - 10.1063/5.0135868
ER  - 

@conference{
author = "Gloginjić, Marko and Erich, Marko and Skuratov, Vladimir A. and Kirilkin, Nikita S. and Kokkoris, Mike and Fazinić, Stjepko and Karlušić, Marko and Petrović, Srđan M.",
year = "2023",
abstract = "Magnesium fluoride (MgF2) single crystal has been widely used as a material for application in optics due to its excellent properties like birefringence, wide range of transparency and low refractive index. As such, MgF2 has been proposed for planar waveguide structures. Ion implantation method was frequently used for planar waveguide production due to its ability to modulate optical properties by introduction of impurities and defects in crystal lattice. In all optics fabrication processes, there are demands for a precise control of optical characteristics modulation and hence the need for precise distribution of implanted impurities and induced damage. In this study, 4 MeV C3+ ions with the fluence of 5×1015 ions/cm2 were implanted in (001) axial direction of MgF2 single crystal. In order to determine the damage depth distribution in the crystal sample, photoluminescence (PL) spectroscopy was proposed as a method of evaluation. PL spectroscopy was used as a convenient method for damage investigation of transparent and semi-transparent samples. The cross-section of the implanted zone was mapped with the step of 0.34 µm and the variations in the spectra were investigated. It was shown that intensity evolution of two prominent wide bands with the intensity maximums at about 590 nm and 733 nm can be used for damage depth distribution estimation. Comparing the relative changes of derivatives of the band’s intensities, data related to the damage depth distribution were obtained. Obtained distribution was compared with the SRIM calculation of displacement damage. Considering the difference in implantation direction, good agreement with SRIM results was obtained. As a consequence of ion channeling, it was shown that damage distribution is extended deeper (for about 20%).",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy",
volume = "2778",
number = "1",
pages = "040007",
doi = "10.1063/5.0135868"
}

Gloginjić, M., Erich, M., Skuratov, V. A., Kirilkin, N. S., Kokkoris, M., Fazinić, S., Karlušić, M.,& Petrović, S. M.. (2023). Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 040007.
https://doi.org/10.1063/5.0135868

Gloginjić M, Erich M, Skuratov VA, Kirilkin NS, Kokkoris M, Fazinić S, Karlušić M, Petrović SM. Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):040007.
doi:10.1063/5.0135868 .

Gloginjić, Marko, Erich, Marko, Skuratov, Vladimir A., Kirilkin, Nikita S., Kokkoris, Mike, Fazinić, Stjepko, Karlušić, Marko, Petrović, Srđan M., "Ion channeling implantation induced MgF2 crystal damage through the “eye” of photoluminescence spectroscopy" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):040007,
https://doi.org/10.1063/5.0135868 . .

TY  - CONF
AU  - Burian, Jiri
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filova, Vendula
AU  - Gloginjić, Marko
AU  - Katovsky, Karel
AU  - Kral, Dušan
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan M.
AU  - Št'Astný, Ondřej
AU  - Vrban, Branislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11072
AB  - To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up
VL  - 2778
IS  - 1
SP  - 050001
DO  - 10.1063/5.0136138
ER  - 

@conference{
author = "Burian, Jiri and Čerba, Štefan and Erich, Marko and Filova, Vendula and Gloginjić, Marko and Katovsky, Karel and Kral, Dušan and Luley, Jakub and Mravik, Željko and Petrović, Srđan M. and Št'Astný, Ondřej and Vrban, Branislav",
year = "2023",
abstract = "To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up",
volume = "2778",
number = "1",
pages = "050001",
doi = "10.1063/5.0136138"
}

Burian, J., Čerba, Š., Erich, M., Filova, V., Gloginjić, M., Katovsky, K., Kral, D., Luley, J., Mravik, Ž., Petrović, S. M., Št'Astný, O.,& Vrban, B.. (2023). Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050001.
https://doi.org/10.1063/5.0136138

Burian J, Čerba Š, Erich M, Filova V, Gloginjić M, Katovsky K, Kral D, Luley J, Mravik Ž, Petrović SM, Št'Astný O, Vrban B. Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050001.
doi:10.1063/5.0136138 .

Burian, Jiri, Čerba, Štefan, Erich, Marko, Filova, Vendula, Gloginjić, Marko, Katovsky, Karel, Kral, Dušan, Luley, Jakub, Mravik, Željko, Petrović, Srđan M., Št'Astný, Ondřej, Vrban, Branislav, "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050001,
https://doi.org/10.1063/5.0136138 . .

TY  - CONF
AU  - Starčević, Nikola
AU  - Petrović, Srđan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12423
AB  - It was both shown theoretically and experimentally that it was possible to construct an accurate proton-silicon interaction potential (the rainbow potential) applying the rainbow morphological method1. That method has been also introduced for studying ion-atom interaction potentials for different ion-crystal combinations2-4. In the work presented here, we analyze the proton-silicon interaction potential dependence on the changing of the charge of neon atoms inside the silicon <100> crystal channels. It has been demonstrated that one can prescribe the rainbow potential dependence on the ion’s charge state.
C3  - SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts
T1  - Ion-atom interaction potential dependence on the ion’s charge exchange
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12423
ER  - 

@conference{
author = "Starčević, Nikola and Petrović, Srđan",
year = "2023",
abstract = "It was both shown theoretically and experimentally that it was possible to construct an accurate proton-silicon interaction potential (the rainbow potential) applying the rainbow morphological method1. That method has been also introduced for studying ion-atom interaction potentials for different ion-crystal combinations2-4. In the work presented here, we analyze the proton-silicon interaction potential dependence on the changing of the charge of neon atoms inside the silicon <100> crystal channels. It has been demonstrated that one can prescribe the rainbow potential dependence on the ion’s charge state.",
journal = "SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts",
title = "Ion-atom interaction potential dependence on the ion’s charge exchange",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12423"
}

Starčević, N.,& Petrović, S.. (2023). Ion-atom interaction potential dependence on the ion’s charge exchange. in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts, 69-69.
https://hdl.handle.net/21.15107/rcub_vinar_12423

Starčević N, Petrović S. Ion-atom interaction potential dependence on the ion’s charge exchange. in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts. 2023;:69-69.
https://hdl.handle.net/21.15107/rcub_vinar_12423 .

Starčević, Nikola, Petrović, Srđan, "Ion-atom interaction potential dependence on the ion’s charge exchange" in SFKM : 21. Simpozijum fizike kondenzovane materije = SCMP : the 21st symposium on condensed matter physics : book of abstracts (2023):69-69,
https://hdl.handle.net/21.15107/rcub_vinar_12423 .

TY  - JOUR
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Štastný, Ondřej
AU  - Filova, Vendula
AU  - Katovský, Karel
AU  - Gloginić, Marko
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10403
AB  - One of the most effective ways of gaining user experience and minimizing user effects on modelling and simulation is benchmarking. Currently (2022) a new experimental workplace, the so called 'Mini Labyrinth' is being developed at Slovak University of Technology in Bratislava (STU). It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V2 setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks, H2O filled polylactic acid (PLA) tank, plastic source holder and detectors placed inside and outside the Mini Labyrinth. This paper is focused on the monitoring of the radiation doses around the workplace using the NuDET neutron detector and on the comparison of the measured quantities with ones simulated by SCALE 6 MONACO. The influence of the size of the model and the definition of the detector is studied in this analysis. The achieved results are presented and some discussions on further needed development are also included.
T2  - Radiation Protection Dosimetry
T1  - Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu
VL  - 198
IS  - 9-11
SP  - 628
EP  - 633
DO  - 10.1093/rpd/ncac109
ER  - 

@article{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Nečas, Vladimír and Štastný, Ondřej and Filova, Vendula and Katovský, Karel and Gloginić, Marko and Mravik, Željko and Erich, Marko and Petrović, Srđan M.",
year = "2022",
abstract = "One of the most effective ways of gaining user experience and minimizing user effects on modelling and simulation is benchmarking. Currently (2022) a new experimental workplace, the so called 'Mini Labyrinth' is being developed at Slovak University of Technology in Bratislava (STU). It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V2 setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks, H2O filled polylactic acid (PLA) tank, plastic source holder and detectors placed inside and outside the Mini Labyrinth. This paper is focused on the monitoring of the radiation doses around the workplace using the NuDET neutron detector and on the comparison of the measured quantities with ones simulated by SCALE 6 MONACO. The influence of the size of the model and the definition of the detector is studied in this analysis. The achieved results are presented and some discussions on further needed development are also included.",
journal = "Radiation Protection Dosimetry",
title = "Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu",
volume = "198",
number = "9-11",
pages = "628-633",
doi = "10.1093/rpd/ncac109"
}

Čerba, Š., Vrban, B., Lüley, J., Nečas, V., Štastný, O., Filova, V., Katovský, K., Gloginić, M., Mravik, Ž., Erich, M.,& Petrović, S. M.. (2022). Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu. in Radiation Protection Dosimetry, 198(9-11), 628-633.
https://doi.org/10.1093/rpd/ncac109

Čerba Š, Vrban B, Lüley J, Nečas V, Štastný O, Filova V, Katovský K, Gloginić M, Mravik Ž, Erich M, Petrović SM. Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu. in Radiation Protection Dosimetry. 2022;198(9-11):628-633.
doi:10.1093/rpd/ncac109 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Nečas, Vladimír, Štastný, Ondřej, Filova, Vendula, Katovský, Karel, Gloginić, Marko, Mravik, Željko, Erich, Marko, Petrović, Srđan M., "Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu" in Radiation Protection Dosimetry, 198, no. 9-11 (2022):628-633,
https://doi.org/10.1093/rpd/ncac109 . .

TY  - JOUR
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondej
AU  - Burian, Jiri
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10523
AB  - Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.
T2  - Nuclear Technology and Radiation Protection
T1  - Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code
VL  - 37
IS  - 2
SP  - 128
EP  - 137
DO  - 10.2298/NTRP2202128G
ER  - 

@article{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondej and Burian, Jiri and Petrović, Srđan M.",
year = "2022",
abstract = "Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.",
journal = "Nuclear Technology and Radiation Protection",
title = "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code",
volume = "37",
number = "2",
pages = "128-137",
doi = "10.2298/NTRP2202128G"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection, 37(2), 128-137.
https://doi.org/10.2298/NTRP2202128G

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection. 2022;37(2):128-137.
doi:10.2298/NTRP2202128G .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondej, Burian, Jiri, Petrović, Srđan M., "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code" in Nuclear Technology and Radiation Protection, 37, no. 2 (2022):128-137,
https://doi.org/10.2298/NTRP2202128G . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondřej
AU  - Burian, Jiří
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10822
AB  - During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence
SP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10822
ER  - 

@conference{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondřej and Burian, Jiří and Petrović, Srđan M.",
year = "2022",
abstract = "During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence",
pages = "82",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10822"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 82.
https://hdl.handle.net/21.15107/rcub_vinar_10822

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:82.
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondřej, Burian, Jiří, Petrović, Srđan M., "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):82,
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

TY  - CONF
AU  - Katovsky, Karel
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Lüley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12491
AB  - Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.
C3  - APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts
T1  - Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12491
ER  - 

@conference{
author = "Katovsky, Karel and Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Lüley, Jakub and Mravik, Željko and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.",
journal = "APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts",
title = "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12491"
}

Katovsky, K., Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Lüley, J., Mravik, Ž., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts.
https://hdl.handle.net/21.15107/rcub_vinar_12491

Katovsky K, Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Lüley J, Mravik Ž, Petrović S, Šťastný O, Vrban B. Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts. 2022;.
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

Katovsky, Karel, Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Lüley, Jakub, Mravik, Željko, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition" in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts (2022),
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

TY  - CONF
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Katovský, Karel
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Nečas, Vladimír
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12497
AB  - With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Precise experimental determination of attenuation coefficient and its simulation
SP  - 131
EP  - 131
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Katovský, Karel and Luley, Jakub and Mravik, Željko and Nečas, Vladimír and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Precise experimental determination of attenuation coefficient and its simulation",
pages = "131-131",
doi = "10.14311/DRO.2021.XLII"
}

Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Katovský, K., Luley, J., Mravik, Ž., Nečas, V., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 131-131.
https://doi.org/10.14311/DRO.2021.XLII

Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Katovský K, Luley J, Mravik Ž, Nečas V, Petrović S, Šťastný O, Vrban B. Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:131-131.
doi:10.14311/DRO.2021.XLII .

Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Katovský, Karel, Luley, Jakub, Mravik, Željko, Nečas, Vladimír, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Precise experimental determination of attenuation coefficient and its simulation" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):131-131,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Luley, Jakub
AU  - Nečas, Vladimír
AU  - Katovský, Karel
AU  - Šťastný, Ondřej
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Petrović, Srđan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12500
AB  - Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU
SP  - 24
EP  - 24
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Luley, Jakub and Nečas, Vladimír and Katovský, Karel and Šťastný, Ondřej and Filová, Vendula and Gloginjić, Marko and Erich, Marko and Mravik, Željko and Petrović, Srđan",
year = "2022",
abstract = "Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU",
pages = "24-24",
doi = "10.14311/DRO.2021.XLII"
}

Čerba, Š., Vrban, B., Luley, J., Nečas, V., Katovský, K., Šťastný, O., Filová, V., Gloginjić, M., Erich, M., Mravik, Ž.,& Petrović, S.. (2022). Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 24-24.
https://doi.org/10.14311/DRO.2021.XLII

Čerba Š, Vrban B, Luley J, Nečas V, Katovský K, Šťastný O, Filová V, Gloginjić M, Erich M, Mravik Ž, Petrović S. Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:24-24.
doi:10.14311/DRO.2021.XLII .

Čerba, Štefan, Vrban, Branislav, Luley, Jakub, Nečas, Vladimír, Katovský, Karel, Šťastný, Ondřej, Filová, Vendula, Gloginjić, Marko, Erich, Marko, Mravik, Željko, Petrović, Srđan, "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):24-24,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - JOUR
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Kokkoris, Michael
AU  - Liarokapis, Efthymios
AU  - Fazinić, Stjepko
AU  - Karlušić, Marko
AU  - Tomić Luketić, Kristina
AU  - Petrović, Srđan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9858
AB  - The hexagonal silicon carbide (6H-SiC) is one of materials used in nuclear applications, and as such is exposed to crystal damage inducing by variety of energetic particles like neutrons. In this article the 6H-SiC crystal lattice damage was introduced by the 4 MeV C3+ and 4 MeV Si3+ channelling ion implantation at the room temperature. The implantation of C and Si ions (so called self-ions) to the set of different fluences, achieves a 6H-SiC crystal lattice damage more similar to what the exposure to neutrons would produce. The 6H-SiC crystal damage has been investigated by the Elastic Backscattering spectra taken in the channeling orientation (EBS/C). EBS/C spectra of the implanted 6H-SiC samples were taken with 1.725 MeV and 1.860 MeV protons. By fitting the EBS/C spectra, the quantitative 6H-SiC crystal damage depth profiles were obtained. Further, the cross section of crystal's implanted region has been scanned with the micro-Raman (μR) technique for a comparison. In this way, the qualitative analysis of a non-crystalline phase as a function of the crystal depth was independently determined. Additionally, a scanning electron microscopy (SEM) image was taken of the implanted crystal cross sections. The comparison of the crystal damage profiles obtained by fitting EBS/C spectra with the corresponding ones obtained with the μR and SEM techniques shows very good consistency between them.
T2  - Journal of Nuclear Materials
T1  - The quantitative 6H-SiC crystal damage depth profiling
VL  - 555
SP  - 153143
DO  - 10.1016/j.jnucmat.2021.153143
ER  - 

@article{
author = "Gloginjić, Marko and Erich, Marko and Kokkoris, Michael and Liarokapis, Efthymios and Fazinić, Stjepko and Karlušić, Marko and Tomić Luketić, Kristina and Petrović, Srđan M.",
year = "2021",
abstract = "The hexagonal silicon carbide (6H-SiC) is one of materials used in nuclear applications, and as such is exposed to crystal damage inducing by variety of energetic particles like neutrons. In this article the 6H-SiC crystal lattice damage was introduced by the 4 MeV C3+ and 4 MeV Si3+ channelling ion implantation at the room temperature. The implantation of C and Si ions (so called self-ions) to the set of different fluences, achieves a 6H-SiC crystal lattice damage more similar to what the exposure to neutrons would produce. The 6H-SiC crystal damage has been investigated by the Elastic Backscattering spectra taken in the channeling orientation (EBS/C). EBS/C spectra of the implanted 6H-SiC samples were taken with 1.725 MeV and 1.860 MeV protons. By fitting the EBS/C spectra, the quantitative 6H-SiC crystal damage depth profiles were obtained. Further, the cross section of crystal's implanted region has been scanned with the micro-Raman (μR) technique for a comparison. In this way, the qualitative analysis of a non-crystalline phase as a function of the crystal depth was independently determined. Additionally, a scanning electron microscopy (SEM) image was taken of the implanted crystal cross sections. The comparison of the crystal damage profiles obtained by fitting EBS/C spectra with the corresponding ones obtained with the μR and SEM techniques shows very good consistency between them.",
journal = "Journal of Nuclear Materials",
title = "The quantitative 6H-SiC crystal damage depth profiling",
volume = "555",
pages = "153143",
doi = "10.1016/j.jnucmat.2021.153143"
}

Gloginjić, M., Erich, M., Kokkoris, M., Liarokapis, E., Fazinić, S., Karlušić, M., Tomić Luketić, K.,& Petrović, S. M.. (2021). The quantitative 6H-SiC crystal damage depth profiling. in Journal of Nuclear Materials, 555, 153143.
https://doi.org/10.1016/j.jnucmat.2021.153143

Gloginjić M, Erich M, Kokkoris M, Liarokapis E, Fazinić S, Karlušić M, Tomić Luketić K, Petrović SM. The quantitative 6H-SiC crystal damage depth profiling. in Journal of Nuclear Materials. 2021;555:153143.
doi:10.1016/j.jnucmat.2021.153143 .

Gloginjić, Marko, Erich, Marko, Kokkoris, Michael, Liarokapis, Efthymios, Fazinić, Stjepko, Karlušić, Marko, Tomić Luketić, Kristina, Petrović, Srđan M., "The quantitative 6H-SiC crystal damage depth profiling" in Journal of Nuclear Materials, 555 (2021):153143,
https://doi.org/10.1016/j.jnucmat.2021.153143 . .

TY  - CHAP
AU  - Petrović, Srđan M.
AU  - Starčević, Nikola
AU  - Ćosić, Marko
AU  - Nešković, Nebojša B.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10309
AB  - This work shows how recent experimental results of angular distributions of 2 MeV protons channeled in a 55-nm-thick (001) silicon crystal tilted away from the [001] direction can be explained by the very accurate rainbow ion-atom interaction potential. The obtained results are compared with the ones applying universal ZBL interaction ion-atom potential, which is mainly used in the literature. © 2021 Walter de Gruyter GmbH, Berlin/Boston.
T2  - Advanced Ceramics and Applications
T1  - On the doughnut effect and the rainbow proton-silicon interaction potential
SP  - 271
EP  - 276
DO  - 10.1515/9783110627992-019
ER  - 

@inbook{
author = "Petrović, Srđan M. and Starčević, Nikola and Ćosić, Marko and Nešković, Nebojša B.",
year = "2021",
abstract = "This work shows how recent experimental results of angular distributions of 2 MeV protons channeled in a 55-nm-thick (001) silicon crystal tilted away from the [001] direction can be explained by the very accurate rainbow ion-atom interaction potential. The obtained results are compared with the ones applying universal ZBL interaction ion-atom potential, which is mainly used in the literature. © 2021 Walter de Gruyter GmbH, Berlin/Boston.",
journal = "Advanced Ceramics and Applications",
booktitle = "On the doughnut effect and the rainbow proton-silicon interaction potential",
pages = "271-276",
doi = "10.1515/9783110627992-019"
}

Petrović, S. M., Starčević, N., Ćosić, M.,& Nešković, N. B.. (2021). On the doughnut effect and the rainbow proton-silicon interaction potential. in Advanced Ceramics and Applications, 271-276.
https://doi.org/10.1515/9783110627992-019

Petrović SM, Starčević N, Ćosić M, Nešković NB. On the doughnut effect and the rainbow proton-silicon interaction potential. in Advanced Ceramics and Applications. 2021;:271-276.
doi:10.1515/9783110627992-019 .

Petrović, Srđan M., Starčević, Nikola, Ćosić, Marko, Nešković, Nebojša B., "On the doughnut effect and the rainbow proton-silicon interaction potential" in Advanced Ceramics and Applications (2021):271-276,
https://doi.org/10.1515/9783110627992-019 . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Petrović, Srđan M.
AU  - Takabayashi, Yuichi
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9144
AB  - We are investigating the quantum dynamics of a well-collimated electron beam transmitting through planar channels of the Si crystal. Electron states were represented by wave packets while the electron beam is treated as an ensemble of noninteracting wave packets. We have investigated the relationship between classical caustic pattern and anharmonicity of the potential and analyzed how quantum dynamic depends on the wave packet impact parameter and beam's angular divergence. We found that the extrema of the electron trajectory period, considered as a function of the impact parameter, determine the shape of the caustic pattern. All wave packet probability densities have multiple maxima generated by a self-interference. Their sum, that represents probability density of an ensemble, was found to depends strongly on the beam angular divergence. For small divergence, most peaks of different wave packets are aligned causing wavelike behavior of the ensemble. For moderate angular divergence maxima of some wave packets, are aligned with minima of others, resulting in the emergence of the classical caustic pattern. We have shown and experimentally confirmed that the only indication that the observed caustic pattern is generated by the quantum dynamics is a slight systematic shift of the corresponding caustic maxima. © 2021 American Physical Society.
T2  - Physical Review A
T1  - Classical patterns in the quantum rainbow channeling of high energy electrons
VL  - 103
IS  - 2
SP  - 022818
DO  - 10.1103/PhysRevA.103.022818
ER  - 

@article{
author = "Ćosić, Marko and Petrović, Srđan M. and Takabayashi, Yuichi",
year = "2021",
abstract = "We are investigating the quantum dynamics of a well-collimated electron beam transmitting through planar channels of the Si crystal. Electron states were represented by wave packets while the electron beam is treated as an ensemble of noninteracting wave packets. We have investigated the relationship between classical caustic pattern and anharmonicity of the potential and analyzed how quantum dynamic depends on the wave packet impact parameter and beam's angular divergence. We found that the extrema of the electron trajectory period, considered as a function of the impact parameter, determine the shape of the caustic pattern. All wave packet probability densities have multiple maxima generated by a self-interference. Their sum, that represents probability density of an ensemble, was found to depends strongly on the beam angular divergence. For small divergence, most peaks of different wave packets are aligned causing wavelike behavior of the ensemble. For moderate angular divergence maxima of some wave packets, are aligned with minima of others, resulting in the emergence of the classical caustic pattern. We have shown and experimentally confirmed that the only indication that the observed caustic pattern is generated by the quantum dynamics is a slight systematic shift of the corresponding caustic maxima. © 2021 American Physical Society.",
journal = "Physical Review A",
title = "Classical patterns in the quantum rainbow channeling of high energy electrons",
volume = "103",
number = "2",
pages = "022818",
doi = "10.1103/PhysRevA.103.022818"
}

Ćosić, M., Petrović, S. M.,& Takabayashi, Y.. (2021). Classical patterns in the quantum rainbow channeling of high energy electrons. in Physical Review A, 103(2), 022818.
https://doi.org/10.1103/PhysRevA.103.022818

Ćosić M, Petrović SM, Takabayashi Y. Classical patterns in the quantum rainbow channeling of high energy electrons. in Physical Review A. 2021;103(2):022818.
doi:10.1103/PhysRevA.103.022818 .

Ćosić, Marko, Petrović, Srđan M., Takabayashi, Yuichi, "Classical patterns in the quantum rainbow channeling of high energy electrons" in Physical Review A, 103, no. 2 (2021):022818,
https://doi.org/10.1103/PhysRevA.103.022818 . .

TY  - JOUR
AU  - Starčević, Nikica
AU  - Petrović, Srđan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9797
AB  - In this work we show a way how the crystal rainbow channeling effect can be applied for obtaining the interaction potential between 2 MeV protons and the cubic crystallographic crystals, in the cases of axial channeling of protons along (0 0 1) and (1 1 1) crystal directions. The procedure for construction of this potential has been based on our previous work in which the rainbow morphology was crucial for their determination. However, important improvements have been made. As a result, the two axial channeling directions can be treated using the same physical arguments leading to more consistent values of the fitting parameters in the ion-atom interaction potential.
T2  - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
T1  - Crystal rainbow channeling potential for 〈1 0 0〉 and 〈1 1 1〉 cubic crystallographic crystals
VL  - 499
SP  - 39
EP  - 45
DO  - 10.1016/j.nimb.2021.03.004
ER  - 

@article{
author = "Starčević, Nikica and Petrović, Srđan M.",
year = "2021",
abstract = "In this work we show a way how the crystal rainbow channeling effect can be applied for obtaining the interaction potential between 2 MeV protons and the cubic crystallographic crystals, in the cases of axial channeling of protons along (0 0 1) and (1 1 1) crystal directions. The procedure for construction of this potential has been based on our previous work in which the rainbow morphology was crucial for their determination. However, important improvements have been made. As a result, the two axial channeling directions can be treated using the same physical arguments leading to more consistent values of the fitting parameters in the ion-atom interaction potential.",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
title = "Crystal rainbow channeling potential for 〈1 0 0〉 and 〈1 1 1〉 cubic crystallographic crystals",
volume = "499",
pages = "39-45",
doi = "10.1016/j.nimb.2021.03.004"
}

Starčević, N.,& Petrović, S. M.. (2021). Crystal rainbow channeling potential for 〈1 0 0〉 and 〈1 1 1〉 cubic crystallographic crystals. in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 499, 39-45.
https://doi.org/10.1016/j.nimb.2021.03.004

Starčević N, Petrović SM. Crystal rainbow channeling potential for 〈1 0 0〉 and 〈1 1 1〉 cubic crystallographic crystals. in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2021;499:39-45.
doi:10.1016/j.nimb.2021.03.004 .

Starčević, Nikica, Petrović, Srđan M., "Crystal rainbow channeling potential for 〈1 0 0〉 and 〈1 1 1〉 cubic crystallographic crystals" in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 499 (2021):39-45,
https://doi.org/10.1016/j.nimb.2021.03.004 . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Osuský, Filip
AU  - Nečas, Vladimír
AU  - Štastný, Ondřej
AU  - Katovský, Karel
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10036
AB  - The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at STU, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark experiment, originally constructed in the former Soviet Union in 1982. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. The purpose of this experiment is to validate the computer codes of STU and partners involved in the APVV-DS international project “Experimental and simulation shielding studies of materials used in radiation protection”. This paper gives a brief overview of the experimental workplace and brings the first experimental results and their comparison with computer simulation. The very first experiment performed in the Mini Labyrinth experimental workplace was focused on the measurement of neutron and gamma count rate inside the Mini Labyrinth using the Thermo Scientific RadEye dose meter. The experimental setup also consisted of a PuBe radioisotope neutron source and light water moderator placed in a plastic tank between the neutron source and the detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools taking into account the detailed geometry of the labyrinth and a combined neutron- gamma source of particles. The comparisons were performed between codes, based on dose rate in the unique detection positions and using a 3D map of neutron and photon fluxes, using the so called meshtallies. The comparison between the simulated and measured data was performed based on the measured neutron count rate
C3  - AIP Conference Proceedings
T1  - Preliminary results of the STU mini labyrinth radiation shielding experiment
VL  - 2411
IS  - 1
SP  - 070001
DO  - 10.1063/5.0067366
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Osuský, Filip and Nečas, Vladimír and Štastný, Ondřej and Katovský, Karel and Gloginjić, Marko and Mravik, Željko and Erich, Marko and Petrović, Srđan M.",
year = "2021",
abstract = "The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at STU, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark experiment, originally constructed in the former Soviet Union in 1982. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. The purpose of this experiment is to validate the computer codes of STU and partners involved in the APVV-DS international project “Experimental and simulation shielding studies of materials used in radiation protection”. This paper gives a brief overview of the experimental workplace and brings the first experimental results and their comparison with computer simulation. The very first experiment performed in the Mini Labyrinth experimental workplace was focused on the measurement of neutron and gamma count rate inside the Mini Labyrinth using the Thermo Scientific RadEye dose meter. The experimental setup also consisted of a PuBe radioisotope neutron source and light water moderator placed in a plastic tank between the neutron source and the detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools taking into account the detailed geometry of the labyrinth and a combined neutron- gamma source of particles. The comparisons were performed between codes, based on dose rate in the unique detection positions and using a 3D map of neutron and photon fluxes, using the so called meshtallies. The comparison between the simulated and measured data was performed based on the measured neutron count rate",
journal = "AIP Conference Proceedings",
title = "Preliminary results of the STU mini labyrinth radiation shielding experiment",
volume = "2411",
number = "1",
pages = "070001",
doi = "10.1063/5.0067366"
}

Čerba, Š., Vrban, B., Lüley, J., Osuský, F., Nečas, V., Štastný, O., Katovský, K., Gloginjić, M., Mravik, Ž., Erich, M.,& Petrović, S. M.. (2021). Preliminary results of the STU mini labyrinth radiation shielding experiment. in AIP Conference Proceedings, 2411(1), 070001.
https://doi.org/10.1063/5.0067366

Čerba Š, Vrban B, Lüley J, Osuský F, Nečas V, Štastný O, Katovský K, Gloginjić M, Mravik Ž, Erich M, Petrović SM. Preliminary results of the STU mini labyrinth radiation shielding experiment. in AIP Conference Proceedings. 2021;2411(1):070001.
doi:10.1063/5.0067366 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Osuský, Filip, Nečas, Vladimír, Štastný, Ondřej, Katovský, Karel, Gloginjić, Marko, Mravik, Željko, Erich, Marko, Petrović, Srđan M., "Preliminary results of the STU mini labyrinth radiation shielding experiment" in AIP Conference Proceedings, 2411, no. 1 (2021):070001,
https://doi.org/10.1063/5.0067366 . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Petrović, Srđan M.
AU  - Bellucci, Stefano
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9675
AB  - This is a study of proton transmission through planar channels of tungsten, where a proton beam is treated as an ensemble of noninteracting wave packets. For this system, the structural stability manifests in an appearance of caustic lines, and as an equivalence of self-interference produced waveforms with canonical diffraction patterns. We will show that coordination between particle self-interference is an additional manifestation of the structural stability existing only in ensembles. The main focus of the analysis was on the ability of the coordination to produce classical structures. We have found that the structures produced by the self-interference are organized in a very different manner. The coordination can enhance or suppress the quantum aspects of the dynamics. This behavior is explained by distributions of inflection, undulation, and singular points of the ensemble phase function, and their bifurcations. We have shown that the coordination has a topological origin which allows classical and quantum levels of reality to exist simultaneously. The classical behavior of the ensemble emerges out of the quantum dynamics without a need for reduction of the quantum to the classical laws of motion.
T2  - Scientific Reports
T1  - Coordinated self-interference of wave packets: a new route towards classicality for structurally stable systems
VL  - 10
IS  - 1
SP  - 16949
DO  - 10.1038/s41598-020-72965-w
ER  - 

@article{
author = "Ćosić, Marko and Petrović, Srđan M. and Bellucci, Stefano",
year = "2020",
abstract = "This is a study of proton transmission through planar channels of tungsten, where a proton beam is treated as an ensemble of noninteracting wave packets. For this system, the structural stability manifests in an appearance of caustic lines, and as an equivalence of self-interference produced waveforms with canonical diffraction patterns. We will show that coordination between particle self-interference is an additional manifestation of the structural stability existing only in ensembles. The main focus of the analysis was on the ability of the coordination to produce classical structures. We have found that the structures produced by the self-interference are organized in a very different manner. The coordination can enhance or suppress the quantum aspects of the dynamics. This behavior is explained by distributions of inflection, undulation, and singular points of the ensemble phase function, and their bifurcations. We have shown that the coordination has a topological origin which allows classical and quantum levels of reality to exist simultaneously. The classical behavior of the ensemble emerges out of the quantum dynamics without a need for reduction of the quantum to the classical laws of motion.",
journal = "Scientific Reports",
title = "Coordinated self-interference of wave packets: a new route towards classicality for structurally stable systems",
volume = "10",
number = "1",
pages = "16949",
doi = "10.1038/s41598-020-72965-w"
}

Ćosić, M., Petrović, S. M.,& Bellucci, S.. (2020). Coordinated self-interference of wave packets: a new route towards classicality for structurally stable systems. in Scientific Reports, 10(1), 16949.
https://doi.org/10.1038/s41598-020-72965-w

Ćosić M, Petrović SM, Bellucci S. Coordinated self-interference of wave packets: a new route towards classicality for structurally stable systems. in Scientific Reports. 2020;10(1):16949.
doi:10.1038/s41598-020-72965-w .

Ćosić, Marko, Petrović, Srđan M., Bellucci, Stefano, "Coordinated self-interference of wave packets: a new route towards classicality for structurally stable systems" in Scientific Reports, 10, no. 1 (2020):16949,
https://doi.org/10.1038/s41598-020-72965-w . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Petrović, Srđan M.
AU  - Bellucci, Stefano
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9680
AB  - We have investigated the dynamics of a quantum particle in the optical lattice potential. Initially, the quantum particle was represented by a Gaussian wave packet, located in the center of the well. The corresponding Schrödinger equation was solved explicitly by the method of the Chebyshev global propagation. Obtained solutions were also used for the construction of the Wigner functions. We found a great number of local abrupt changes of the solution shape. To explain this behavior, we used the fact that structurally stable systems, which form the largest class of the low dimensional dynamical systems, can be modeled and classified according to the catastrophe theory. All important features of the exact solution were explained on the basis of the mathematical properties of the catastrophic model. Such an approach enabled us to extract relevant information out of numerical solutions without employing any kind of approximations. We have investigated the influence of the Wigner catastrophes on the details of the quantum-classical correspondence breakdown. The wave packet was found to expand rapidly, filling the whole classically available area of the phase space. It was found that its self-interference pattern saturates quickly. A region of the phase space emerges in which the Wigner function oscillations transform into the singularity driven fluctuations. Once this region covers the whole area of the phase space, a wave packet dynamics enters into the new regime where its Wigner function fluctuates around the ergodic average. It will be shown that all mentioned processes are caused by the proliferation of the catastrophes and their mutual interactions
T2  - Chaos
T1  - On the phase-space catastrophes in dynamics of the quantum particle in an optical lattice potential
VL  - 30
IS  - 10
SP  - 103107
DO  - 10.1063/1.5140528
ER  - 

@article{
author = "Ćosić, Marko and Petrović, Srđan M. and Bellucci, Stefano",
year = "2020",
abstract = "We have investigated the dynamics of a quantum particle in the optical lattice potential. Initially, the quantum particle was represented by a Gaussian wave packet, located in the center of the well. The corresponding Schrödinger equation was solved explicitly by the method of the Chebyshev global propagation. Obtained solutions were also used for the construction of the Wigner functions. We found a great number of local abrupt changes of the solution shape. To explain this behavior, we used the fact that structurally stable systems, which form the largest class of the low dimensional dynamical systems, can be modeled and classified according to the catastrophe theory. All important features of the exact solution were explained on the basis of the mathematical properties of the catastrophic model. Such an approach enabled us to extract relevant information out of numerical solutions without employing any kind of approximations. We have investigated the influence of the Wigner catastrophes on the details of the quantum-classical correspondence breakdown. The wave packet was found to expand rapidly, filling the whole classically available area of the phase space. It was found that its self-interference pattern saturates quickly. A region of the phase space emerges in which the Wigner function oscillations transform into the singularity driven fluctuations. Once this region covers the whole area of the phase space, a wave packet dynamics enters into the new regime where its Wigner function fluctuates around the ergodic average. It will be shown that all mentioned processes are caused by the proliferation of the catastrophes and their mutual interactions",
journal = "Chaos",
title = "On the phase-space catastrophes in dynamics of the quantum particle in an optical lattice potential",
volume = "30",
number = "10",
pages = "103107",
doi = "10.1063/1.5140528"
}

Ćosić, M., Petrović, S. M.,& Bellucci, S.. (2020). On the phase-space catastrophes in dynamics of the quantum particle in an optical lattice potential. in Chaos, 30(10), 103107.
https://doi.org/10.1063/1.5140528

Ćosić M, Petrović SM, Bellucci S. On the phase-space catastrophes in dynamics of the quantum particle in an optical lattice potential. in Chaos. 2020;30(10):103107.
doi:10.1063/1.5140528 .

Ćosić, Marko, Petrović, Srđan M., Bellucci, Stefano, "On the phase-space catastrophes in dynamics of the quantum particle in an optical lattice potential" in Chaos, 30, no. 10 (2020):103107,
https://doi.org/10.1063/1.5140528 . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Nešković, Nebojša B.
AU  - Petrović, Srđan M.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0168583X19300758
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8049
AB  - This is a theoretical study of the superfocusing and zero-degree focusing effects appearing in channeling of protons of energy of 2 MeV in the {1 1 0} channel of a thin silicon crystal. We prove that the ultimate origin of these effects is the crystal rainbow effect, which has been discovered and explored in ion transmission through axial crystal channels, nanotubes and graphene. Moreover, the effect is the origin of the shapes of the whole spatial and angular distributions of channeled protons. The incident proton velocity vector is taken to be parallel to the channel midplane. We use the Molière's approximation of the Thomas-Fermi proton-atom interaction potential and the continuum approximation. The effect of thermal vibrations of the crystal's atoms is included. We solve numerically the proton equation of motion and analyze the spatial and angular proton transmission functions. The extrema of these functions are the spatial and angular rainbow points, respectively. When the whole proton beam is taken into account, a spatial rainbow pattern, composed of the lines emerging from the superfocusing points, and an angular rainbow pattern, consisting of the lines emerging from the origin and the zero-degree focusing points, appear along the channel. We consider the region of crystal thickness comprising the first, second and third superfocusing and zero-degree focusing points. When the effect of thermal vibrations is neglected, each of these rainbow lines look like the bifurcation set of the cusp catastrophe, and when the effect is included, the line resembles the bifurcation set of the butterfly catastrophe. We demonstrate that the spatial and angular distributions of transmitted protons are fully determined by the spatial and angular rainbow lines, respectively. The superfocusing and zero-degree focusing effects weaken with the increase of the crystal thickness. This is a consequence of the anharmonicity of the continuum proton-crystal interaction potential, which makes the proton beam propagation through the channel incoherent. We also explore the influence of the effect of proton collisions with the crystal's electrons on the beam dynamics in the channel. This effect additionally contributes to the incoherence of the beam motion along the channel. Our opinion is that the peaks of the spatial and angular distributions of ions transmitted through the planar channels lying off the origin registered before were in fact the rainbow peaks. © 2019 Elsevier B.V.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal
VL  - 444
SP  - 10
EP  - 22
DO  - 10.1016/j.nimb.2019.02.004
ER  - 

@article{
author = "Ćosić, Marko and Nešković, Nebojša B. and Petrović, Srđan M.",
year = "2019",
abstract = "This is a theoretical study of the superfocusing and zero-degree focusing effects appearing in channeling of protons of energy of 2 MeV in the {1 1 0} channel of a thin silicon crystal. We prove that the ultimate origin of these effects is the crystal rainbow effect, which has been discovered and explored in ion transmission through axial crystal channels, nanotubes and graphene. Moreover, the effect is the origin of the shapes of the whole spatial and angular distributions of channeled protons. The incident proton velocity vector is taken to be parallel to the channel midplane. We use the Molière's approximation of the Thomas-Fermi proton-atom interaction potential and the continuum approximation. The effect of thermal vibrations of the crystal's atoms is included. We solve numerically the proton equation of motion and analyze the spatial and angular proton transmission functions. The extrema of these functions are the spatial and angular rainbow points, respectively. When the whole proton beam is taken into account, a spatial rainbow pattern, composed of the lines emerging from the superfocusing points, and an angular rainbow pattern, consisting of the lines emerging from the origin and the zero-degree focusing points, appear along the channel. We consider the region of crystal thickness comprising the first, second and third superfocusing and zero-degree focusing points. When the effect of thermal vibrations is neglected, each of these rainbow lines look like the bifurcation set of the cusp catastrophe, and when the effect is included, the line resembles the bifurcation set of the butterfly catastrophe. We demonstrate that the spatial and angular distributions of transmitted protons are fully determined by the spatial and angular rainbow lines, respectively. The superfocusing and zero-degree focusing effects weaken with the increase of the crystal thickness. This is a consequence of the anharmonicity of the continuum proton-crystal interaction potential, which makes the proton beam propagation through the channel incoherent. We also explore the influence of the effect of proton collisions with the crystal's electrons on the beam dynamics in the channel. This effect additionally contributes to the incoherence of the beam motion along the channel. Our opinion is that the peaks of the spatial and angular distributions of ions transmitted through the planar channels lying off the origin registered before were in fact the rainbow peaks. © 2019 Elsevier B.V.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal",
volume = "444",
pages = "10-22",
doi = "10.1016/j.nimb.2019.02.004"
}

Ćosić, M., Nešković, N. B.,& Petrović, S. M.. (2019). Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 444, 10-22.
https://doi.org/10.1016/j.nimb.2019.02.004

Ćosić M, Nešković NB, Petrović SM. Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2019;444:10-22.
doi:10.1016/j.nimb.2019.02.004 .

Ćosić, Marko, Nešković, Nebojša B., Petrović, Srđan M., "Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 444 (2019):10-22,
https://doi.org/10.1016/j.nimb.2019.02.004 . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Petrović, Srđan M.
AU  - Nešković, Nebojša B.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8226
AB  - Here we report the results of the theoretical investigation of the transmission of channeled positrons through various short chiral single walled carbon nanotubes (SWCNT). The main question answered by this study is “What are the manifestations of the rainbow effect in the channeling of quantum particles that happens during the channeling of classical particles?” To answer this question, the corresponding classical and quantum problems were solved in parallel, critically examined, and compared with each other. Positron energies were taken to be 1 MeV when the quantum approach was necessary. The continuum positron-nanotube potential was constructed from the thermally averaged Molière’s positron-carbon potential. In the classical approach, a positron beam is considered as an ensemble of noninteracting particles. In the quantum approach, it is considered as an ensemble of noninteracting wave packages. Distributions of transmitted positrons were constructed from the numerical solutions of Newton’s equation and the time-dependent Schrödinger equation. For the transmission of 1-MeV positrons through 200-nm long SWCNT (14; 4), in addition to the central maximum, the quantum angular distribution has a prominent peak pair (close to the classical rainbows) and two smaller peaks pairs. We have shown that even though the semiclassical approximation is not strictly applicable it is useful for explanation of the observed behavior. In vicinity of the most prominent peak, i.e., the primary rainbow peak, rays interfere constructively. On one of its sides, rays become complex, which explains the exponential decay of the probability density in that region. On the other side, the ray interference alternates between constructive and destructive, thus generating two observed supernumerary rainbow peaks. The developed model was then applied for the explanation of the angular distributions of 1-MeV positrons transmitting through 200 nm long (7, 3), (8, 5), (9, 7), (14, 4), (16, 5) and (17, 7) SWCNTs. It has been shown that this explains most but not all rainbow patterns. Therefore, a new method for the identification and classification of quantum rainbows was developed relying only on the morphological properties of the positron wave function amplitude and the phase function families. This led to a detailed explanation of the way the quantum rainbows are generated. All wave packets wrinkle due to their internal focusing in a mutually coordinated way and are concentrated near the position of the corresponding classical rainbow. This explanation is general and applicable to the investigations of quantum effects occurring in various other atomic collision processes.
T2  - Atoms
T1  - Quantum Rainbows in Positron Transmission through Carbon Nanotubes
VL  - 7
IS  - 1
SP  - 16
DO  - 10.3390/atoms7010016
ER  - 

@article{
author = "Ćosić, Marko and Petrović, Srđan M. and Nešković, Nebojša B.",
year = "2019",
abstract = "Here we report the results of the theoretical investigation of the transmission of channeled positrons through various short chiral single walled carbon nanotubes (SWCNT). The main question answered by this study is “What are the manifestations of the rainbow effect in the channeling of quantum particles that happens during the channeling of classical particles?” To answer this question, the corresponding classical and quantum problems were solved in parallel, critically examined, and compared with each other. Positron energies were taken to be 1 MeV when the quantum approach was necessary. The continuum positron-nanotube potential was constructed from the thermally averaged Molière’s positron-carbon potential. In the classical approach, a positron beam is considered as an ensemble of noninteracting particles. In the quantum approach, it is considered as an ensemble of noninteracting wave packages. Distributions of transmitted positrons were constructed from the numerical solutions of Newton’s equation and the time-dependent Schrödinger equation. For the transmission of 1-MeV positrons through 200-nm long SWCNT (14; 4), in addition to the central maximum, the quantum angular distribution has a prominent peak pair (close to the classical rainbows) and two smaller peaks pairs. We have shown that even though the semiclassical approximation is not strictly applicable it is useful for explanation of the observed behavior. In vicinity of the most prominent peak, i.e., the primary rainbow peak, rays interfere constructively. On one of its sides, rays become complex, which explains the exponential decay of the probability density in that region. On the other side, the ray interference alternates between constructive and destructive, thus generating two observed supernumerary rainbow peaks. The developed model was then applied for the explanation of the angular distributions of 1-MeV positrons transmitting through 200 nm long (7, 3), (8, 5), (9, 7), (14, 4), (16, 5) and (17, 7) SWCNTs. It has been shown that this explains most but not all rainbow patterns. Therefore, a new method for the identification and classification of quantum rainbows was developed relying only on the morphological properties of the positron wave function amplitude and the phase function families. This led to a detailed explanation of the way the quantum rainbows are generated. All wave packets wrinkle due to their internal focusing in a mutually coordinated way and are concentrated near the position of the corresponding classical rainbow. This explanation is general and applicable to the investigations of quantum effects occurring in various other atomic collision processes.",
journal = "Atoms",
title = "Quantum Rainbows in Positron Transmission through Carbon Nanotubes",
volume = "7",
number = "1",
pages = "16",
doi = "10.3390/atoms7010016"
}

Ćosić, M., Petrović, S. M.,& Nešković, N. B.. (2019). Quantum Rainbows in Positron Transmission through Carbon Nanotubes. in Atoms, 7(1), 16.
https://doi.org/10.3390/atoms7010016

Ćosić M, Petrović SM, Nešković NB. Quantum Rainbows in Positron Transmission through Carbon Nanotubes. in Atoms. 2019;7(1):16.
doi:10.3390/atoms7010016 .

Ćosić, Marko, Petrović, Srđan M., Nešković, Nebojša B., "Quantum Rainbows in Positron Transmission through Carbon Nanotubes" in Atoms, 7, no. 1 (2019):16,
https://doi.org/10.3390/atoms7010016 . .

TY  - JOUR
AU  - Ćosić, Marko
AU  - Hadžijojić, Milivoje
AU  - Rymzhanov, Ruslan
AU  - Petrović, Srđan M.
AU  - Bellucci, Stefano
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8022
AB  - The thermal motion of graphene atoms was investigated using angular distributions of transmitted protons. The static proton-graphene interaction potential was constructed applying the Doyle-Turner's expression for the proton-carbon interaction potential. The effects of atom thermal motion were incorporated by averaging the static proton-graphene interaction potential over the distribution of atom displacements. The covariance matrix of graphene displacements was modeled according to the Debye theory, and calculated using Molecular Dynamics approach. Proton trajectories were used for construction of angular yields. We have found that there are lines, called rainbows, along which the angular yield is very large. Their evolution in respect to different sample orientation was examined in detail. Further we found that atom thermal motion has negligible influence on rainbows generated by protons experiencing distant collisions with the carbon atoms forming the graphene hexagon. On the other hand, rainbows generated by protons experiencing close collisions with the carbon atoms can be modeled by ellipses whose parameters are very sensitive to the structure of the covariance matrix. Numerical procedure was developed for extraction of the covariance matrix from the corresponding rainbow patterns in the general case, when atoms perform fully anisotropic and correlated motion.
T2  - Carbon
T1  - Investigation of the graphene thermal motion by rainbow scattering
VL  - 145
SP  - 161
EP  - 174
DO  - 10.1016/j.carbon.2019.01.020
ER  - 

@article{
author = "Ćosić, Marko and Hadžijojić, Milivoje and Rymzhanov, Ruslan and Petrović, Srđan M. and Bellucci, Stefano",
year = "2019",
abstract = "The thermal motion of graphene atoms was investigated using angular distributions of transmitted protons. The static proton-graphene interaction potential was constructed applying the Doyle-Turner's expression for the proton-carbon interaction potential. The effects of atom thermal motion were incorporated by averaging the static proton-graphene interaction potential over the distribution of atom displacements. The covariance matrix of graphene displacements was modeled according to the Debye theory, and calculated using Molecular Dynamics approach. Proton trajectories were used for construction of angular yields. We have found that there are lines, called rainbows, along which the angular yield is very large. Their evolution in respect to different sample orientation was examined in detail. Further we found that atom thermal motion has negligible influence on rainbows generated by protons experiencing distant collisions with the carbon atoms forming the graphene hexagon. On the other hand, rainbows generated by protons experiencing close collisions with the carbon atoms can be modeled by ellipses whose parameters are very sensitive to the structure of the covariance matrix. Numerical procedure was developed for extraction of the covariance matrix from the corresponding rainbow patterns in the general case, when atoms perform fully anisotropic and correlated motion.",
journal = "Carbon",
title = "Investigation of the graphene thermal motion by rainbow scattering",
volume = "145",
pages = "161-174",
doi = "10.1016/j.carbon.2019.01.020"
}

Ćosić, M., Hadžijojić, M., Rymzhanov, R., Petrović, S. M.,& Bellucci, S.. (2019). Investigation of the graphene thermal motion by rainbow scattering. in Carbon, 145, 161-174.
https://doi.org/10.1016/j.carbon.2019.01.020

Ćosić M, Hadžijojić M, Rymzhanov R, Petrović SM, Bellucci S. Investigation of the graphene thermal motion by rainbow scattering. in Carbon. 2019;145:161-174.
doi:10.1016/j.carbon.2019.01.020 .

Ćosić, Marko, Hadžijojić, Milivoje, Rymzhanov, Ruslan, Petrović, Srđan M., Bellucci, Stefano, "Investigation of the graphene thermal motion by rainbow scattering" in Carbon, 145 (2019):161-174,
https://doi.org/10.1016/j.carbon.2019.01.020 . .