Title :
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
fDate :
12/1/1996 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
