@article{oai:jaxa.repo.nii.ac.jp:00033304, author = {佐々木, 進 and 後川, 昭雄 and 森田, 洋右 and Sasaki, Susumu and Ushirokawa, Akio and Morita, Yosuke}, journal = {宇宙科学研究所報告. 特集: 太陽発電衛星SPS2000研究成果報告}, month = {Mar}, note = {SPS2000は赤道軌道高度1,100km,出力10MWの太陽発電衛星モデルである.SPS2000用の太陽電池としてはa-Siの薄膜太陽電池が候補とされている.a-Siの太陽電池は比較的新しいタイプの太陽電池なので,宇宙環境特に宇宙放射線に対する耐性のデータはこれまで充分には得られていない.私たちは原子力研究所の電子及びプロトンの加速器を用いて民生用のa-Si太陽電池に対し照射実験を行い,その放射線耐性を調べる実験を行った.電子については0.15~3.0MeVのエネルギーで1×10^16 electrons/cm^2までの照射,プロトンについては3~10MeVのエネルギーで2.5×10^14 protons/cm^2までの照射を行った.一連の照射実験の結果,私たちの試験したa-Siの太陽電池は,SPS2000の軌道で10年間の運用に対し90%以上の発電性能を維持することが分かった., SPS 2000 is a study model of 10 MWatt solar power satellite in a 1,100 km equatorial orbit. For the power generator of SPS 2000, amorphous silicon (a-Si) solar cell, a thin film type developed for ground use, has been selected as a potential candidate. Since the a-Si solar cell is relatively newborn, its operational data in space are not sufficiently available. We have made radiation experiments for the a-Si solar cell by the electron and proton beam accelerators of the Japan Atomic Energy Research Institute. The effect of 0.15~3.0 MeV electron irradiation was studied up to the fluence of 1X 10^16 electrons/cm^2. For proton irradiation, the effect of the energy at 3~10 MeV was studied up to 2.5 X 10^14 protons/cm^2. According to the experimental results, the performance of the a-Si solar cell will be maintained more than 90% of the initial performance during 10 years for the orbit of SPS 2000. It is concluded that the a-Si solar cell is potentially promising for the SPS use., 資料番号: SA0200077000}, pages = {23--30}, title = {a-Si太陽電池の耐放射線性の評価}, volume = {43}, year = {2001} }