Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jass...18..153b&link_type=abstract
Journal of Astronomy and Space Science, vol. 18, no. 2, p. 153-162
Astronomy and Astrophysics
Astronomy
Proton, Electron, Tid
Scientific paper
In this paper, space radiation environment and total ionizing dose(TID) effect have been analyzed for the KOMPSAT-2 operational orbit. It has been revealed that the trapped protons are concentrated in the SAA(South Atlantic Anomaly) area and that the trapped protons and electrons, and solar protons are main factors affecting TID. It turned out that low energy particles can be effectively blocked by aluminum shielding thickness, but high energy particles can not be effectively blocked by increasing aluminum shielding thickness. KOMPSAT-2 total radiation dose which is accumulated continuously to spacecraft electronics has been expressed as the function of aluminum thickness. These values can be used as the criteria for the selection of electronic parts and shielding thinkness of the KOMPSAT-2 structure or electronic box.
Baek Myung-Jin
Kim Hak-Jung
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