@inproceedings{oai:jaxa.repo.nii.ac.jp:00004163, author = {田川, 雅人 and 大藪, 高詩 and 安田, 茂 and 横田, 久美子 and Tagawa, Masahito and Oyabu, Takashi and Yasuda, Shigeru and Yokota, Kumiko}, book = {宇宙航空研究開発機構特別資料: 第9回宇宙環境シンポジウム講演論文集, JAXA Special Publication: Proceedings of the 9th Spacecraft Environment Symposium}, month = {Feb}, note = {第9回宇宙環境シンポジウム (2012年11月5日-6日. 東京都市大学・世田谷キャンパス), 東京, 9th Spacecraft Enivironment Symposium (November 5-6, 2012, Setagaya Campus, Tokyo City University), Tokyo Japan, Possibility of N2-induced erosion of fluoropolymer was discussed based on the ground-based experiment and flight data. Multiple composition beams with velocity of 8 km/s were formed with Ar+O2 target gas by the laser detonation source. The energy and composition of the beam, thus formed, were analyzed by time-of-flight measurements with a quadrupole mass spectrometer. It was found that atoms in different masses, O-atom and Ar, are accelerated to similar velocities, i.e., different translational energies (4.5 eV O- atom and 9 eV Ar). This is suitable for simulating sub-low Earth orbit neutral gas environment. Erosion yields of fluoropolymer by O-atom and by Ar were evaluated individually. It was found that the erosion yields of fluoropolymer by 9 eV Ar in the ground-based experiment and those by 9 eV N2 in LEO measured by MISSE-2 showed good agreement. In contrast, erosion yield of fluoropolymer by 5 eV O-atom in the ground-based experiment and that in the orbit were not consistent. These results strongly suggested that the erosion of fluoropolymer is due not by O-atom, but by Ar and N2., 形態: カラー図版あり, Translation title: Probability of N2-induced erosion of fluoropolymer (FEP) in sub-low earth orbit neutral gas environment, Physical characteristics: Original contains color illustrations, 資料番号: AA0061891016, レポート番号: JAXA-SP-12-017}, pages = {109--112}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {低地球軌道環境におけるFEP 劣化に対する窒素分子寄与の可能性}, volume = {JAXA-SP-12-017}, year = {2013} }