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Rainbow channeling of protons in very short carbon nanotubes with aligned Stone-Wales defects

Само за регистроване кориснике
2016
268.pdf (5.001Mb)
Аутори
Ćosić, Marko
Petrović, Srđan M.
Bellucci, Stefano
Чланак у часопису
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Апстракт
In this paper proton channeling through armchair single-walled-carbon-nanotubes (SWCNTs) with aligned Stone-Wales defects has been investigated. The energy of the proton beam was 1 GeV, while the lengths of the SWCNTs have been varied from 200 nm up to 1000 nm. The linear density of aligned defects has been varied in the whole range, from minimally up to maximally possible values. Here are presented results of a detailed morphological analysis concerning: the formation, evolution and interaction of the nanotube rainbows. The potential of the SWCNT has been constructed from Moleres expression of the Thomas-Fermis proton-carbon interaction-energy, using the approximation of the continuous atomic string. Trajectories of the channeled protons were obtained by solving the corresponding classical equations of motions. Distributions of the transmitted protons were obtained by the Monte-Carlo simulation. The shape of angular distributions has been explained in the framework of the theory of na...notube rainbows. The aim of this study is also to investigate the applicability of the proton rainbow channeling for the characterization of nanotubes with aligned Stone-Wales defects. (C) 2015 Elsevier B.V. All rights reserved.

Кључне речи:
Channeling phenomena / Proton scattering / Structure of carbon nanotubes / Theory of nanotube rainbows / Stone-Wales defects
Извор:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2016, 367, 37-45
Пројекти:
  • Физика и хемија са јонским сноповима (RS-45006)

DOI: 10.1016/j.nimb.2015.11.018

ISSN: 0168-583X (print); 1872-9584 (electronic)

WoS: 000369680600005

Scopus: 2-s2.0-84948432311
[ Google Scholar ]
URI
http://vinar.vin.bg.ac.rs/123456789/272
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