Počet záznamů: 1
The electronic stopping powers and angular energy-loss dependence of helium and lithium ions in the silicon crystal
- 1.
SYSNO ASEP 0479631 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The electronic stopping powers and angular energy-loss dependence of helium and lithium ions in the silicon crystal Tvůrce(i) Mikšová, Romana (UJF-V) RID, ORCID, SAI
Macková, Anna (UJF-V) RID, ORCID, SAI
Malinský, Petr (UJF-V) RID, ORCID, SAICelkový počet autorů 3 Zdroj.dok. Nuclear Instruments & Methods in Physics Research Section B. - : Elsevier - ISSN 0168-583X
Roč. 406, SEP (2017), s. 179-184Poč.str. 6 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova energy-loss measurement ; SOI material ; RBS-channelling Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače Obor OECD Nuclear physics CEP LM2015056 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA15-01602S GA ČR - Grantová agentura ČR Institucionální podpora UJF-V - RVO:61389005 UT WOS 000409152800038 EID SCOPUS 85019657773 DOI 10.1016/j.nimb.2017.02.065 Anotace We have measured the electronic stopping powers of helium and lithium ions in the channelling direction of the Si 100 crystal. The energy range used (2.0-8.0 MeV) was changed by 200 and 400-keV steps. The ratio a between the channelling and random stopping powers was determined as a function of the angle for 2, 3 and 4 MeV He-4(+) ions and for 3 and 6 MeV Li-7(+.2+) ions. The measurements were carried out using the Rutherford backscattering spectrometry in the channelling mode (RBS-C) in a silicon-on-insulator material. The experimental channelling stopping-power values measured in the channelling direction were then discussed in the frame of the random energy stopping predictions calculated using SRIM-2013 code and the theoretical unitary convolution approximation (UCA) model. The experimental channelling stopping-power values decrease with increasing ion energy. The stopping-power difference between channelled and randomly moving ions increases with the enhanced initial ion energy. The ratio between the channelling and random ion stopping powers alpha as a function of the ion beam incoming angle for 2, 3 and 4 MeV He+ ions and for 3 and 6 MeV Li+.2+ ions was observed in the range 0.5-1. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2018
Počet záznamů: 1