Hits:

Indexed by:期刊论文

Date of Publication:2009-09-15

Journal:9th International Conference on Computer Simulation of Radiation Effects in Solids

Included Journals:SCIE、EI、CPCI-S、Scopus

Volume:267

Issue:18

Page Number:3133-3136

ISSN No.:0168-583X

Key Words:Carbon nanotube; Self-energy; Stopping power

Abstract:A kinetic model combined with the dielectric response theory is employed to study the electronic excitation on the nanotube walls during the channeling of protons through double-walled carbon nanotubes. Analytical expressions of the self-energy and stopping power are obtained with protons moving along the axis of the double-walled nanotubes. Calculation results show us interesting double-peak curves of the self-energy and stopping power, under strong influence of the damping factor and the special double-walled nanotube geometry. Relatively increasing the damping factor and the chiral parameter of the outer wall can reduce the interference effects between the two walls and weaken the double-peak to one-peak shapes. (C) 2009 Elsevier B.V. All rights reserved.