並列タイトル等Effect of accumulation of incident particles into a target material on sputtering under low-energy ion bombardment
タイトル(掲載誌)宇宙航空研究開発機構研究開発報告: イオン加速グリッド耐久認定用数値解析 JIEDI (JAXA Ion Engine Development Initiatives) ツールの研究開発ワークショップ論文集 = JAXA Research and Development Report
一般注記Workshop on research and development of JIEDI (JAXA Ion Engine Development Initiatives) tool for numerical evaluation of ion engine grid lifetime
The sputtering yields of carbon have been measured during xenon ion bombardment under the threshold energy predicted by the theory at normal incidence. The theoretical threshold energy is 160.84 eV for the xenon-carbon combination. These experimental results are different from the semi-empirical formula proposed by Yamamura and Tawara. We have calculated the sputtering yields of carbon under the xenon ion bombardment with a Monte Carlo code ACAT which is based on the binary collision approximation. The yields of carbon calculated with ACAT are in good agreement with the semi-empirical formula, but differ from the experiments under low-energy xenon bombardment. This discrepancy is believed to be due to the accumulation of xenon onto graphite. The semi-empirical formula and the above ACAT results do not consider this accumulation. In order to quantify this effect, we have calculated with ACAT for the carbon - xenon composite material as a function of xenon concentration. The results of ACAT with 14% xenon atoms in graphite are in good agreement with the experimental data.
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
資料番号: AA0064642004
レポート番号: JAXA-RR-09-004
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2085&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ