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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| j.jnucmat.2020.152018.pdf | 159.59 kB | Adobe PDF | 見る/開く |
| タイトル: | Significant growth of vacancy-type defects by post-irradiation annealing in neon ion-irradiated tungsten probed by a slow positron beam |
| 著者: | Yabuuchi, A. Tanaka, M. Kinomura, A. |
| 著者名の別形: | 籔内, 敦 木野村, 淳 |
| キーワード: | Tungsten Noble gasIon irradiation Vacancy Positron annihilation spectroscopy Slow positron beam |
| 発行日: | 1-Apr-2020 |
| 出版者: | Elsevier BV |
| 誌名: | Journal of Nuclear Materials |
| 巻: | 531 |
| 論文番号: | 152018 |
| 抄録: | Irradiation damage and its evolution in noble gas ion-irradiated tungsten have not been investigated in detail other than in the case of helium ion irradiation. In this study, irradiation-induced vacancy-type defects in helium ion- and neon ion-irradiated tungsten were investigated by using a slow positron beam, and their annealing behavior in the temperature range of 20℃-900℃ was compared by characterizing the Doppler broadening of positron annihilation radiation spectra. In helium ion-irradiated tungsten, slight aggregation of irradiation-induced vacancy-type defects was observed upon annealing, but eventually, a large portion of the vacancy clusters was eliminated after annealing at 900℃. In contrast, in neon ion-irradiated tungsten, irradiation-induced vacancy-type defects were observed to aggregate significantly at 300℃ and 600℃. In addition, the large vacancy clusters formed by the aggregation survived even after annealing at 900℃. |
| 著作権等: | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The full-text file will be made open to the public on 1 April 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
| URI: | http://hdl.handle.net/2433/254703 |
| DOI(出版社版): | 10.1016/j.jnucmat.2020.152018 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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