Space applications of the MITS Electron-Photon Monte Carlo transport code system

Author

Kensek, Ronald P. ; Lorence, Leonard J. ; Halbleib, John A. ; Morel, J.E.

Author_Institution

Sandia Nat. Labs., Albuquerque, NM, USA

Volume

43

Issue

6

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

2724

Lastpage

2730

Abstract

The MITS multigroup/continuous-energy electron-photon Monte Carlo transport code system has matured to the point that it is capable of addressing more realistic three-dimensional adjoint applications. It is first employed to efficiently predict point doses as a function of source energy for simple three-dimensional experimental geometries exposed to planar sources of monoenergetic electrons up to 4.0 MeV due to simulated uniform isotropic fluences. Results are in very good agreement with experimental data. It is then used to efficiently simulate dose to a detector in a subsystem of a GPS satellite from the natural electron environment, employing a relatively complex model of the satellite. The capability for survivability analysis of space systems is demonstrated, and results are obtained with and without variance reduction

Keywords

Global Positioning System; Monte Carlo methods; electron beam effects; integrated circuit reliability; space vehicle electronics; 4 MeV; GPS satellite; Monte Carlo transport code; monoenergetic electrons; multigroup/continuous-energy electron-photon code; natural electron environment; point doses; simulated uniform isotropic fluences; source energy; space applications; survivability analysis; three-dimensional adjoint applications; three-dimensional experimental geometries; variance reduction; Application software; Detectors; Electrons; Global Positioning System; Laboratories; Monte Carlo methods; Power system modeling; Predictive models; Satellite broadcasting; Space missions;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.556859

Filename

556859