The effect of potential barrier on stopping power along axis- channel of silicon for protons

Shafiei, Sepideh; Lamehi-Rashti, Mohammad

The effect of potential barrier on stopping power along axis- channel of silicon for protons

Document Type : Research Paper

Authors

Sepideh Shafiei

Mohammad Lamehi-Rashti

Abstract

In this paper, the effect of the potential barrier and open area of Silicon along the crystallographic direction and on the channeling stopping power and the channeling half- distance for protons are investigated. The channeling stopping power and the channeling half- distance for protons are measured by simulation of the channeling spectra in the energy range of E_p=1800-2200keV. It is assumed that the dechanneling process behaves exponentially. It showed that the channeling stopping power for protons decreases when the potential barrier and open area of channel increase. Furthermore, the channeling half- distance increases by increasing the open area of the channel.

Keywords

Potential barrier

Stopping power

Axial channel

Channeling half- distance

Silicon

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