International Archive of Applied Sciences and Technology, Volume (1), No (2), Year (2010-12) , Pages (62-70)

Title : ( Calculation of Low Field Electron Transport Characteristics in Ge and Effects of Fast Neutron Radiation on its Crystal Structure )

Authors: Hadi Arabshahi , F. Sarlak ,

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Abstract

Temperature and doping dependencies of electron mobility in Ge crystal structure have been calculated using an iteravive technique. The following scattering mechanisims, i.e, impurity, polar optical phonon and acoustic phonon are inculded in the calculation. It is found that the electron mobility decreases monotonically as the temperature increases from 100K to 500K which is depended to the band structure characteristics of Ge. The low temperature value of electron mobilty increases significantly with increasing doping concentration. The amount of neutron energy deposition in Ge crystal of different sizes and at different distances from a neutron source has also been evaluated by using MCNP code. Then, the rate of atoms displacement in the crystals has been calculated using NRT Model. The damage to crystal is proportional to the energy deposition of neutron directly. Results show that number of atoms displacement in the crystal is related to the neutron radiation damage and increased by enlarging of crystal size.

Keywords

technique; ionized imurity scattering; neutron energy; crystal size; atom
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@article{paperid:1023115,
author = {Arabshahi, Hadi and F. Sarlak},
title = {Calculation of Low Field Electron Transport Characteristics in Ge and Effects of Fast Neutron Radiation on its Crystal Structure},
journal = {International Archive of Applied Sciences and Technology},
year = {2010},
volume = {1},
number = {2},
month = {December},
issn = {0976-4828},
pages = {62--70},
numpages = {8},
keywords = {technique; ionized imurity scattering; neutron energy; crystal size; atom},
}

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%0 Journal Article
%T Calculation of Low Field Electron Transport Characteristics in Ge and Effects of Fast Neutron Radiation on its Crystal Structure
%A Arabshahi, Hadi
%A F. Sarlak
%J International Archive of Applied Sciences and Technology
%@ 0976-4828
%D 2010

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