ATTACHMENT : (BSF), back surface reflector (BSR), and tantalum pentoxide antireflection coating. Black cells showed to have higher value of solar absorptance and radiation resistance than BSF and BSFR cells. End of life (EOL) power of Black cells at the operating temperature was about 20% larger than that of BSF cells which have been used for many Japanese satellites, and 37. larger than those of BSR and BSFR cells. Title: Radiation degradation studies on GaAlAs-GaAs solar cells Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space & Astronautical Science, 4-6-1 Komaba, Meguro-ku. Tokyo 153, Japan. Jan. 28-29, 1982. (Paper No. III-3) Authors: Sugawara, Kazushi; Hisamatsu, Tadashi; Shimizu, Masafumi; Tomita, Takashi; Mizuki, Toshio; Ueyama, Hideyuki; Miyago, Makoto; Suzuki, Takeshi; Murata,Katsutaro; Suzuki, Akio; (SHARP Corporation? Keywords: solar cells, environmental effects Abstract: Radiation degradation in GaAlAs-GaAs solar cells by 1 MeV electron 16 2 ' 11 2 fluences up to 1x10 e/cm , 10 MeV proton fluences up to 1x10 p/cm and gamma- ATTACHMENT : 7 ray of 10 Rad are investigated. The solar cell efficiency with minority carrier diffusion length as a parameter has been theoretically calculated. Based on the theory and experiments, radiation damage constants are obtained for these radiations. Title: GaAs solar cells for space application Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space & Astronautical Science, 4-6-1 Komaba, Meguro-ku, Tokyo 153, Japan, Jan. 28-29, 1982. (Paper No. III-4) Au thor s: Yoshida, Susumu; Mitsui, Kotaro; Oda, Takao; Yuk i mot o, Yoshinori; (LSI Research and Development Laboratory, Mitsubishi Electric Corporation? & Hokuyo, Shigeru (Kitaitami Works, Mitsubishi Electric Corporation? Keywords: solar cells, environmental effects Abstract: We have developed high performance GaAs solar cells with a conversion efficiency in excess of 18Z and high resistance to radiation damage by high energy particles. ATTACHMENT : Results on radiation hardness of GaAs solar cells for 1 MeV 16 2 electron fluences up to 1x10 e/cm and 10, 15, and 52 MeV proton fluences up to 12 2 5x10 p/cm are presented. The damage coefficients are compared with Si solar cells irradiated simultaneously by these high energy particles. The effect of thermal annealing on the GaAs solar cells was investigated. Title: Development of high intensity solar simulator Source: Proceedings of the First ISAS Space Energy Symposium, Institute of Space & Astronautical Science, 4-6-1 Komaba, Meguro-ku, Tokyo 153, Japan, Jan. 28-29, 1982. (Paper No. I I 1-5) Authors: Shimada, Shigeaki; Nakamura, Yoshihiko; (M. Watanabe & Co., LTD.? Keywords: solar cells, space energy conversion Abstract: Two kinds of high intensity multipurpose solar simulators were developed and on operation for the measurement of high power density solar cell or accelerated degradation test of miscellaneous solar energy converters. The range of solar intensity lies from 1 to 50 SC (solar constant) and from 1 to 10 ATTACHMENT : SC respectively. The target area and intensity of the solar radiation are able to change in wide range, by adjusting the distance between the target and the projector with some combination change of the projector lens. Total energy and intensity of the projected solar radiation can be varied continuously down to one third of the rated maximum by adjusting xenon lamp current as we 11 . The factors injuring constancy of the simulated solar spectral irradiance were carefully investigated and controlled. As a result, the optical characteristics of the solar system have been kept practically the same after a year of rather high rate of operation. Title: Space solar electric power generation system with Stirling engine Source: Proceedings of the Second ISAS Space Energy Symposium, Institute of
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