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Numerical study of electron backscattering

Technical Report:

Abstract

The transport of electrons which undergo only elastic scattering has been studied by a method similar to the S{sub n} method in reactor physics. The electrons were assumed to have a normal incidence on the plane surface of a semi-infinite medium. The method was first tested for isotropic scattering. Good agreement was obtained with available analytical results for the albedo and for the reflected angular distribution. Calculations were then performed on aluminium and gold at 1 keV electron energy. The differential cross sections were taken in analytical form from the literature. It was found that at least 48 directional cosines are needed for good accuracy. The results for the albedo and the reflected angular distribution were compared to Monte Carlo calculations with very good agreement. Some efforts to obtain also the path length distribution were in vain, since the numerical method is not suitable for this purpose. 9 refs, 2 figs.
Authors:
Publication Date:
Apr 01, 1994
Product Type:
Technical Report
Report Number:
CTH-RF-102
Reference Number:
SCA: 661100; PA: AIX-26:006804; EDB-95:010592; SN: 95001299405
Resource Relation:
Other Information: PBD: Apr 1994
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BACKSCATTERING; NUMERICAL SOLUTION; ELECTRONS; ELASTIC SCATTERING; ALBEDO; ANGULAR DISTRIBUTION; MONTE CARLO METHOD; REFLECTION; 661100; CLASSICAL AND QUANTUM MECHANICS
OSTI ID:
10102791
Research Organizations:
Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Reactor Physics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0281-9775; Other: ON: DE95610173; TRN: SE9400171006804
Availability:
OSTI; NTIS; INIS
Submitting Site:
SWDN
Size:
15 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Sjoestrand, N G. Numerical study of electron backscattering. Sweden: N. p., 1994. Web.
Sjoestrand, N G. Numerical study of electron backscattering. Sweden.
Sjoestrand, N G. 1994. "Numerical study of electron backscattering." Sweden.
@misc{etde_10102791,
title = {Numerical study of electron backscattering}
author = {Sjoestrand, N G}
abstractNote = {The transport of electrons which undergo only elastic scattering has been studied by a method similar to the S{sub n} method in reactor physics. The electrons were assumed to have a normal incidence on the plane surface of a semi-infinite medium. The method was first tested for isotropic scattering. Good agreement was obtained with available analytical results for the albedo and for the reflected angular distribution. Calculations were then performed on aluminium and gold at 1 keV electron energy. The differential cross sections were taken in analytical form from the literature. It was found that at least 48 directional cosines are needed for good accuracy. The results for the albedo and the reflected angular distribution were compared to Monte Carlo calculations with very good agreement. Some efforts to obtain also the path length distribution were in vain, since the numerical method is not suitable for this purpose. 9 refs, 2 figs.}
place = {Sweden}
year = {1994}
month = {Apr}
}