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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 | 2012/01 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Beryllium erosion induced by transient heat loads and subsequent reactions in a deuterium plasma |
| 執筆形態 | 共著・編著（代表編著を除く） |
| 掲載誌名 | JOURNAL OF NUCLEAR MATERIALS |
| 掲載区分 | 国外 |
| 出版社・発行元 | ELSEVIER SCIENCE BV |
| 巻・号・頁 | 420(1-3),pp.252-257 |
| 国際共著 | 国際共著 |
| 著者・共著者 | Shin Kajita,Daisuke Nishijima,Russ Doerner,Karl Umstadter,Jonathan Yu,Noriyasu Ohno,Yoshio Ueda |
| 概要 | Pulsed laser irradiation (similar to 0.1-4 MJ/m(2) at 1-10 ms) to a beryllium (Be) target has been performed under steady-state deuterium (D) plasma exposure in the linear divertor plasma simulator PISCES-B to investigate the response of Be to transient heat loads such as edge localized modes. Emission intensities from Be atoms and beryllium deuteride (BeD) molecules are observed in front of the Be target by using two fast framing cameras simultaneously; those exhibit similar time evolution to each other, but spatial profiles are different. While the Be I light emission peaks just in front of the target, the BeD emission peaks away from the target. This indicates that Be atoms are directly ejected from the surface, and BeD molecules are volumetrically formed in the plasma |
| DOI | 10.1016/j.jnucmat.2011.09.033 |
| ISSN | 0022-3115/1873-4820 |