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EBS/C proton spectra from a virgin diamond crystal

Erich, M.; Kokkoris, M.; Fazinić, Stjepko; Petrović, S. (2016) EBS/C proton spectra from a virgin diamond crystal. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 381 . pp. 96-102. ISSN 0168-583X

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In the present work, elastic backscattering channeling spectra, EBS/C, of protons in a h100i diamond crystal were experimentally and theoretically studied via a new computer simulation code. Proton incident energies for EBS/C spectra were in the energy range from 1.0 MeV to 1.9 MeV. The energy range was chosen in order to explore a distinct strong resonance of the 12C(p, p0)12C elastic scattering at 1737 keV. The computer simulation code applied for the fitting of the experimental spectra in the random mode was compared with the corresponding SIMNRA results. In the channeling mode, it assumes a Gompertz type sigmoidal dechanneling function, which has two fitting parameters, xc and k, the dechanneling range and rate, respectively. It also uses a, ratio of the channeling to random energy losses, as a fitting parameter. It was observed that xc increases, k decreases and a stays relatively constant with the proton incident energy. These observations confirm the physical interpretation of the fitting parameters. Also, they constitute the basics for the further development of the code for the quantification of induced amorphization and depth profiling of implanted ions.

Item Type: Article
Additional Information: ME and SP acknowledge the support by the Ministry of Education, Science and Technological Development of Serbia through project "Physics and Chemistry with Ion Beams", No. 11145006. ME, SP and MK acknowledge that this work is part of the NTUA//VINS Collaboration Agreement. MK and SP acknowledge partial support by the Horizon 2020 project AIDA-2020, GA No. 654168. SF acknowledges the support of the Croatian Science Foundation under the project MIOBICC (No. 8127).
Uncontrolled Keywords: EBS/C; Dechanneling; Diamond; Carbon; Computer simulation
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Project titleProject leaderProject codeProject type
Advanced European Infrastructures for Detectors at Accelerators-AIDA-2020UNSPECIFIED654168EK
Promjene u kristaliničnim materijalima izazvane ionskim snopovima MeV-skih energija-MIOBICCStjepko FazinićIP-2013-11-8127HRZZ
Depositing User: Stjepko Fazinić
Date Deposited: 14 Apr 2020 12:45
DOI: 10.1016/j.nimb.2016.05.030

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