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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 | 2011/08 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Effects of carbon impurity on deuterium retention in VPS-tungsten coatings exposed to JT-60U divertor plasmas |
| 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 | 415(1),pp.S705-S708 |
| 著者・共著者 | M. Fukumoto,T. Nakano,K. Itami,T. Wada,Y. Ueda,T. Tanabe |
| 概要 | Carbon eroded from carbon armor tiles during plasma discharge was implanted into and accumulated in tungsten coating exposed to JT-60U divertor plasmas. The D/C ratio of 0.06 +/- 0.02 evaluated in the tungsten coating was half to one-quarter that in carbon codeposits formed at similar temperature of the tungsten coating. These results suggest that simultaneous use of carbon and tungsten coating would enhance tritium retention in the tungsten coating in future deuterium-tritium fusion devices. To investigate the carbon diffusion mechanism in the tungsten coating exposed to JT-60U divertor plasmas, the carbon diffusion coefficient in tungsten coating was measured by tracer methods. |
| DOI | 10.1016/j.jnucmat.2010.12.310 |
| ISSN | 0022-3115 |