Evaluation of Electronics Shielding in Micro-Satellites

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Authors
  1. Varga, L.
  2. Horvath, E.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
This report investiates radiation shielding capabilities of micro-satellite bus model structures, incoproating different designs and materials for protecting internal spacecraft electronics from the ionizing radiation of the space environment. The modelling calculations have been carried out with a 3D Monte Carlo radiation transport code. The results indicate that the greatest reduction of total ionizing dose (TID) is observed with traditional aluminum spacecraft structures, although structures made with lighter poly-carbon materials with added thin layer of high-Z material can provide comparable radiation protection in addition to some spacecraft mass reduction.

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Keywords
LEO;SEU;PEEK;Space Environment;Tantalum;Trapped Protons;Trapped Electrons;Solar Protons;Total Ionizing Dose;Satellite electronic components;Space radiation environment;Trapped radiation
Report Number
DRDC-OTTAWA-TM-2003-017 — Technical Memorandum
Date of publication
01 Feb 2003
Number of Pages
37
DSTKIM No
CA022180
CANDIS No
519025
Format(s):
Hardcopy;CD ROM

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