NDLI: Test program of multi-junction GaAs/Ge solar array coupons with combined space environmental exposures

Content Provider	IEEE Xplore Digital Library
Author	Bao Hoang Wong, F. Corey, R. Gardiner, G. Funderburk, V.V. Gahart, R. Schneider, T.A. Vaughn, J.A. Wright, K.
Copyright Year	2012
Description	Author affiliation: University of Alabama in Huntsville, 35899 USA (Wright, K.) \|\| NASA/Marshall Space Flight Center, Huntsville, AL 35812 USA (Schneider, T.A.; Vaughn, J.A.) \|\| Space Systems/Loral, Palo Alto, CA 940343 USA (Bao Hoang; Wong, F.; Corey, R.; Gardiner, G.; Funderburk, V.V.; Gahart, R.)
Abstract	A test program was undertaken to understand the changes and degradation of the space solar array panel components in their integrated form after multiple years (up to 15) of simulated Earth geosynchronous (GEO) space environment. The solar array coupon panel design included its electrostatic discharge (ESD) mitigation design features. A set of multi-junction GaAs/Ge solar array test coupons was subjected to 5-year increments of combined environmental exposure tests. These tests consisted of: simulated ultraviolet (UV) radiation, ESD, electron/proton particle radiation, thermal cycling, simulated ion thruster exposures, and simulated ion thruster interaction with ESD events on the solar array. Before and after each increment of combined environmental exposures, the coupons underwent visual inspection using high power magnification and electrical tests that included characterization by LAPSS, dark I–V, insulation resistance, and electroluminescence. This paper discusses the test objective, test methodologies, and preliminary results after 5 years, 10 years and 15 years of simulated combined environmental exposure tests.
Starting Page	003263
Ending Page	003268
File Size	3188816
Page Count	6
File Format	PDF
ISBN	9781467300643
ISSN	01608371
e-ISBN	9781467300667
DOI	10.1109/PVSC.2012.6318273
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Electrostatic discharges Xenon Protons Coatings Degradation combined environmental space exposure multi-junction GaAs/Ge solar array spacecraft charging electrostatic discharge
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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