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  • 1
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    Effects of low energy proton, electron, and simultaneously combined proton and electron environments in silicon and GaAs solar cells (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Degradation of silicon and GaAs solar cells due to exposures to low energy proton and electron environments and annealing data for these cells are discussed. Degradation of silicon cells in simultaneously combined electron and low energy proton environments and previous experimental work is summarized and evaluated. The deficiencies in current solar array damage prediction techniques indicated by these data and the relevance of these deficiencies to specific missions such as intermediate altitude orbits and orbital transfer vehicles using solar electric propulsion systems are considered.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center Space Photovoltaic Res. and Technol.; p 229-238
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Evaluation of solar cell covers and encapsulant materials for space application (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The effects of space radiation (electrons and protons), vacuum, and thermal cycling on a variety of solar cell covers are investigated. Cover materials evaluated include glass resins, 2 mil glass applied with adhesives or electrostatically bonded, and thin plastic films of FEP or PFA applied with adhesive. Solar cells were exposed to environmental conditions simulating those encountered in outer space. These test conditions include 1 MeV electrons, 0.5 MeV protons, and thermal cycling in vacuum. During testing the solar cells were monitored for variations in electrical characteristics and structural changes.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center Space Photovoltaic Res. and Technol.; p 293-315
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Testing of solar cell covers and encapsulants conducted in a simulated space environment (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The materials included in the evaluation were 0211 micro-sheet, FEP-A used as a cover and as an adhesive, DC 93-500 adhesive, PFA "hard coat" used as a cover, GE 615/UV-24 used as a cover, GR 650 used as a cover, and electrostatically bonded 7070 glass. The test environments were 1 MeV electron irradiation interspersed with thermal cycling, 0.5 MeV proton irradiation interspersed with thermal cycling and UV exposure interspersed with thermal cycling. Summary data is given describing the response of the test materials both visually and electrically to the three different environments.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-165475 , D180-26590-1
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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