Mathematics
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aiaa.confq....s&link_type=abstract
AIAA, Japan Society for Aeronautical and Space Sciences, and DGLR, International Electric Propulsion Conference, 15th, Las Vegas
Mathematics
Argon Plasma, High Voltages, Plasma Interactions, Solar Arrays, Space Environment Simulation, Space Plasmas, High Current, Mathematical Models, Plasma Density, Thermal Insulation
Scientific paper
Operating high voltage solar arrays in the space environment can result in anomalously large currents being collected through small insulation defects. Tests of simulated defects have been conducted in a 45-cm vacuum chamber with plasma densities of 100,000 to 1,000,000/cu cm. Plasmas were generated using an argon hollow cathode. The solar array elements were simulated by placing a thin sheet of polyimide (Kapton) insulation with a small hole in it over a conductor. Parameters tested were: hole size, adhesive, surface roughening, sample temperature, insulator thickness, insulator area. These results are discussed along with some preliminary empirical correlations.
Kaufman H. R.
Robinson Rebecca S.
Stillwell R. P.
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