A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV
Само за регистроване кориснике
2004
Аутори
Kokkoris, MichaelPerdikakis, Georgios
Kossionides, S
Petrović, Srđan M.
Vlastou, R.
Grotzschel, Rainer
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In the present work, the energy spectra of protons channeled along the (0 0 0 1) axis of SiC polytype crystals (namely 4H and 6H) in the energy range E-P = 400-650 keV, in the backscattering geometry, were taken and analyzed. Computer simulations are in very good agreement with the measured spectra. The accurate reproduction of the experimental channeling spectra in the backscattering geometry is strongly based on the investigation of the correct dechanneling function and a, the ratio of the stopping powers in the aligned and random mode. In the present work, the applicability of a Gompertz type sigmoidal dechanneling function, with two parameters, k and x(c), which represent characteristic dechanneling rate and range, respectively, is examined, and the results are compared to the ones obtained in the past, concerning the same polytype structures, based on the assumption that the dechanneling of protons follows an exponential law, for the energy range E-P = 1.7-2.4 MeV.
Кључне речи:
backscattering / channeling / nuclear resonance / stopping power ratio / RBSИзвор:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2004, 219, 226-231Напомена:
- 16th International Conference on Ion Beam Analysis, Jun 29-Jul 04, 2003, Albuquerque, NM
DOI: 10.1016/j.nimb.2004.01.058
ISSN: 0168-583X
WoS: 000221895800043
Scopus: 2-s2.0-18144437954
Институција/група
VinčaTY - JOUR AU - Kokkoris, Michael AU - Perdikakis, Georgios AU - Kossionides, S AU - Petrović, Srđan M. AU - Vlastou, R. AU - Grotzschel, Rainer PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6449 AB - In the present work, the energy spectra of protons channeled along the (0 0 0 1) axis of SiC polytype crystals (namely 4H and 6H) in the energy range E-P = 400-650 keV, in the backscattering geometry, were taken and analyzed. Computer simulations are in very good agreement with the measured spectra. The accurate reproduction of the experimental channeling spectra in the backscattering geometry is strongly based on the investigation of the correct dechanneling function and a, the ratio of the stopping powers in the aligned and random mode. In the present work, the applicability of a Gompertz type sigmoidal dechanneling function, with two parameters, k and x(c), which represent characteristic dechanneling rate and range, respectively, is examined, and the results are compared to the ones obtained in the past, concerning the same polytype structures, based on the assumption that the dechanneling of protons follows an exponential law, for the energy range E-P = 1.7-2.4 MeV. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV VL - 219 SP - 226 EP - 231 DO - 10.1016/j.nimb.2004.01.058 ER -
@article{ author = "Kokkoris, Michael and Perdikakis, Georgios and Kossionides, S and Petrović, Srđan M. and Vlastou, R. and Grotzschel, Rainer", year = "2004", abstract = "In the present work, the energy spectra of protons channeled along the (0 0 0 1) axis of SiC polytype crystals (namely 4H and 6H) in the energy range E-P = 400-650 keV, in the backscattering geometry, were taken and analyzed. Computer simulations are in very good agreement with the measured spectra. The accurate reproduction of the experimental channeling spectra in the backscattering geometry is strongly based on the investigation of the correct dechanneling function and a, the ratio of the stopping powers in the aligned and random mode. In the present work, the applicability of a Gompertz type sigmoidal dechanneling function, with two parameters, k and x(c), which represent characteristic dechanneling rate and range, respectively, is examined, and the results are compared to the ones obtained in the past, concerning the same polytype structures, based on the assumption that the dechanneling of protons follows an exponential law, for the energy range E-P = 1.7-2.4 MeV.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV", volume = "219", pages = "226-231", doi = "10.1016/j.nimb.2004.01.058" }
Kokkoris, M., Perdikakis, G., Kossionides, S., Petrović, S. M., Vlastou, R.,& Grotzschel, R.. (2004). A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 219, 226-231. https://doi.org/10.1016/j.nimb.2004.01.058
Kokkoris M, Perdikakis G, Kossionides S, Petrović SM, Vlastou R, Grotzschel R. A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2004;219:226-231. doi:10.1016/j.nimb.2004.01.058 .
Kokkoris, Michael, Perdikakis, Georgios, Kossionides, S, Petrović, Srđan M., Vlastou, R., Grotzschel, Rainer, "A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 219 (2004):226-231, https://doi.org/10.1016/j.nimb.2004.01.058 . .