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Design and manufacturability demonstration of retro-reflectors of ITER poloidal polarimeter that are mounted in first wall panels
https://repo.qst.go.jp/records/79212
https://repo.qst.go.jp/records/79212bd3cb673-9140-4785-b609-c31313c52919
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-05 | |||||
| タイトル | ||||||
| タイトル | Design and manufacturability demonstration of retro-reflectors of ITER poloidal polarimeter that are mounted in first wall panels | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Imazawa, Ryota
× Imazawa, Ryota× Ono, Takehiro× Watts, Christopher× Ishikawa, Masao× Shimada, Takahiko× Itami, Kiyoshi× Hatae, Takaki× Ryota, Imazawa× Ono, Takehiro× Masao, Ishikawa× Takahiko, Shimada× Kiyoshi, Itami× Takaki, Hatae |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The ITER poloidal polarimeter will install optical components, corner cube retro-reflectors, into the slot of the first wall (FW) panels. The issues of designing the retro-reflector were (i) to achieve good thermal contact between the retro-reflector assembly and the FW and (ii) to accommodate the different thermal expansion of the retro-reflector made of tungsten and the FW made of stainless steel. In order to solve the issues, the CuCrZr filler was employed. A coupled mechanical-thermal analysis was carried out to confirm that the required contact pressure of 60 MPa persists during plasma operation. The highest predicted temperature of the retro-reflector was 673 °C, which is acceptable for tungsten. Electromagnetic analysis was carried out to confirm that the retro-reflector assembly will not move during plasma disruption. A maximum force of 3.06 kN is predicted on the retro-reflector during disruption and is much less than the static friction of 136 kN. In addition, the manufacturability of the retro-reflector assembly was successfully demonstrated. The roughness (Ra) and the flatness (root mean square) achieved for the mirror surface were 0.43 nm and 0.068 μm, respectively. The angle between the assembled mirrors was 90 ± 0.03°, better than the requirement of 90 ± 0.05°. | |||||
| 書誌情報 |
Fusion Engineering and Design 巻 155, p. 111570, 発行日 2020-02 |
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| 出版者 | ||||||
| 出版者 | Science Direct | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2020.111570 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.fusengdes.2020.111570 | |||||
