Gompertz type dechanneling functions for protons in 〈1 0 0〉, 〈1 1 0〉 and 〈1 1 1〉 Si crystal channels

Petrovic, S; Eric, M; Kokkoris, M; Neskovic, N

dc.contributor.author	Petrovic, S	en
dc.contributor.author	Eric, M	en
dc.contributor.author	Kokkoris, M	en
dc.contributor.author	Neskovic, N	en
dc.date.accessioned	2014-03-01T01:26:24Z
dc.date.available	2014-03-01T01:26:24Z
dc.date.issued	2007	en
dc.identifier.issn	0168583X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18064
dc.subject	Channeling	en
dc.subject.other	Backscattering	en
dc.subject.other	Computer simulation	en
dc.subject.other	Crystal engineering	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Protons	en
dc.subject.other	Spectrum analysis	en
dc.subject.other	Crystal channels	en
dc.subject.other	Dechanneling functions	en
dc.subject.other	Energy dependencies	en
dc.subject.other	Proton energy range	en
dc.subject.other	Channel capacity	en
dc.title	Gompertz type dechanneling functions for protons in 〈1 0 0〉, 〈1 1 0〉 and 〈1 1 1〉 Si crystal channels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.nimb.2006.11.110	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.nimb.2006.11.110	en
heal.publicationDate	2007	en
heal.abstract	In this work the energy dependences of the Gompertz type sigmoidal dechanneling function parameters for protons in 〈1 0 0〉, 〈1 1 0〉 and 〈1 1 1〉 Si crystal channels is investigated theoretically. The proton energy range considered is between 1 and 10 MeV. The original dechanneling functions are generated using a realistic Monte Carlo computer simulation code. We show that the Gompertz type dechanneling function, having two parameters, lc and k, representing the dechanneling range and rate, respectively, approximate accurately the original dechanneling function. It is also shown that the energy dependences of parameters lc and k can be approximated by a linear function and a sum of two exponential functions, respectively. The results obtained can be used for accurate reproduction of experimental proton channeling spectra recorded in the backscattering geometry. © 2006 Elsevier B.V. All rights reserved.	en
heal.journalName	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms	en
dc.identifier.doi	10.1016/j.nimb.2006.11.110	en
dc.identifier.volume	256	en
dc.identifier.issue	1	en
dc.identifier.spage	177	en
dc.identifier.epage	181	en