Channeling of protons in radially compressed carbon nanotubes

RREPS13; Meghri13

Karabarbounis, A.^1 ; Sarros, S.^1 ; Trikalinos, Ch^2

Department of Physics, Section of Nuclear and Particle Physics, University of Athens, Ilissia, 15771 Athens, Greece^1

Department of Philosophy and History of Science, University of Athens, Panepistimioupolis, Ilissia, 15771 Athens, Greece^2

关键词: Incident angles;    Nanotube axis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/517/1/012038/pdf
DOI  :  10.1088/1742-6596/517/1/012038

来源: IOP

【 摘 要 】

Channeling of 10 MeV protons in radially compressed chiral carbon nanotubes is considered. Monte Carlo simulation program is used for the calculation of the trajectories, energy losses and angular distributions of protons in nanotubes of various lengths, where the potential in Doyle-Turner approximation is used to describe the interaction between a proton and a nanotube. Calculations were carried out for different incident angles between proton beam and the nanotube axis. The results show that a decreased angular distribution of the beam is observed, compared with propagation through a straight nanotube, in case when it enters from the compressed end of the nanotube. The energy and spatial distribution of channeled protons in compressed nanotubes is examined.