A comparison of solar array radiation damage models

Details A comparison of solar array radiation damage models A comparison of solar array radiation damage models

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pvgs.rept..141c&link_type=abstract

In ESA Photovoltaic Generators in Space p 141-147 (SEE N80-33873 24-44)

Other

Eccentric Orbits, Geosynchronous Orbits, Radiation Damage, Solar Arrays, Comparison, Earth Orbits, Electron Irradiation, Geos 1 Satellite, Geos 2 Satellite, Hubble Space Telescope, Proton Irradiation, Radiation Belts

Scientific paper

The 1 MeV equivalent electron fluences were computed for two ESA solar arrays, operating in an eccentric and geosynchronous orbit respectively, and for another which will operate in near Earth orbit. These three cases have provided a wide coverage of the Earth's trapped proton/electron environment and, for the two orbiting arrays, have enabled comparisons to be made between results of calculations made at time of launch (1977, 1978) with those of recalculations based on the latest improvements to particle maps describing the Earth's trapped radiation environment. The sensitivity of fluence predictions to the use of previously available and current solar cell damage coefficients were also examined. Flight observations agreed well with predictions based on both new and old particle maps for the benign geosynchronous orbit; the agreement between flight data and prediction was less satisfactory for the severe eccentric orbit. Possible reasons for the latter discrepancies are discussed while comparisons between near Earth predictions and flight data are the subjects of posterity.

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