Charge Accumulation Characteristics on Fluorinated Polymer Irradiated by Proton

第17回宇宙環境シンポジウム (2020年10月7日-8日. 宇宙航空研究開発機構(JAXA)オンライン会議)
The 17th Spacecraft Environment Symposium (October 7-8, 2020. Japan Aerospace Exploration Agency (JAXA), Online meeting)
Spacecrafts operated the outside of geo magnetosphere are irradiated solar protons directly. Therefore, it is important to investigate the charging phenomenon of insulation materials under a proton beam irradiation. In this study, we focused on the internal charge accumulation during proton beam irradiation of insulation materials. We developed the electrode system to measure the charge distribution from the surface to the bulk of the sample. From the results, it observed that the amount of charge accumulation is larger 3.4 times than the results of using the general electrode system and the surface potential is 4.4 kV. These results suggest the possibility of discharge at the spacecraft operating environment.
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
資料番号: AA2030009008
レポート番号: JAXA-SP-20-007