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ウエダ ヨシオ
Ueda Yoshio
上田 良夫 所属 追手門学院大学 理工学部 電気電子工学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2016/02 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Reflection properties of hydrogen ions at helium irradiated tungsten surfaces |
| 執筆形態 | 共著・編著（代表編著を除く） |
| 掲載誌名 | PHYSICA SCRIPTA |
| 出版社・発行元 | IOP PUBLISHING LTD |
| 巻・号・頁 | T167 |
| 著者・共著者 | K. Doi,Y. Tawada,H. T. Lee,S. Kato,N. Tanaka,M. Sasao,M. Kisaki,M. Nishiura,Y. Matsumoto,T. Kenmotsu,M. Wada,Y. Ueda,H. Yamaoka |
| 概要 | Nanostructured W surfaces prepared by He bombardment exhibit characteristic angular distributions of hydrogen ion reflection upon injection of 1 keV H+ beam. A magnetic momentum analyzer that can move in the vacuum chamber has measured the angular dependence of the intensity and the energy of reflected ions. Broader angular distributions were observed for He-irradiated tungsten samples compared with that of the intrinsic polycrystalline W. Both intensity and energy of reflected ions decreased in the following order: the polycrystalline W, the He-bubble containing W, and the fuzz W. Classical trajectory Monte Carlo simulations based on Atomic Collision in Amorphous Target code suggests that lower atom density near the surface can make the reflection coefficients lower due to increasing number of collisions. |
| DOI | 10.1088/0031-8949/T167/1/014044 |
| ISSN | 0031-8949/1402-4896 |