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Bibliographic Record
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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 村本, 哲也剣持, 貴弘百武, 徹西田, 迪雄Muramoto, TetsuyaKenmotsu, TakahiroHyakutake, ToruNishida, Michio
- Author Heading
- Publication, Distribution, etc.
- Publication Date
- 2010-02-26
- Publication Date (W3CDTF)
- 2010-02-26
- Alternative Title
- MD Simulation of Carbon Sputtering under Low-energy Xe Ion Bombardment
- Periodical title
- 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
- No. or year of volume/issue
- JAXA-RR-09-004
- Volume
- JAXA-RR-09-004
- ISSN (Periodical Title)
- ISSN : 1349-1113
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- Workshop on research and development of JIEDI (JAXA Ion Engine Development Initiatives) tool for numerical evaluation of ion engine grid lifetimeIn order to develop the sputtering database to estimate the erosion of accelerator grids of an ion engine, the low-energy sputtering of carbon material with Xe ion is studied through molecular dynamics (MD) simulations. For the normal incidence, the MD result of sputtering yield almost agrees with the experimental result by Williams et al. (AIAA-2004-3788). However, the experimental result shows less incident angle dependence than the MD result. Because it seems that Xe ions in the experiment feel randomized surface normal vectors when the low-energy Xe ion caused many-body collisions to local surface atoms in rough surface. Thus, it is proper that the MD simulation in a smooth surface overestimates the incident angle dependence of sputtering yield. Hence, it is necessary to include the effect of surface roughness using Monte-Carlo simulation with the sputtering database for plane surface.形態: カラー図版ありPhysical characteristics: Original contains color illustrations資料番号: AA0064642003レポート番号: JAXA-RR-09-004
- Access Restrictions
- インターネット公開
- Periodical Title (NCID)
- AA1192675X
- Data Provider (Database)
- 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）
- Original Data Provider (Database)
- 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