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Computer tomography on divertor impurity monitor for ITER with Minimizing Errors in a Logarithmic Scale
https://repo.qst.go.jp/records/82313
https://repo.qst.go.jp/records/82313ecd7136f-6ce3-4082-a0a5-b368a1721b42
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-03-19 | |||||
| タイトル | ||||||
| タイトル | Computer tomography on divertor impurity monitor for ITER with Minimizing Errors in a Logarithmic Scale | |||||
| 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_5794 | |||||
| 資源タイプ | conference paper | |||||
| 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 |
夏目祥揮
× 夏目祥揮× Kajita, Shin× S. NEVEROV, Vladislav× I. KHUSNUTDINOV, Radmir× VESHCHEV, Evgeny× DE BOCK, Maarten× R. POLEVOI, Alexei× 田中宏彦× OHNO, Noriyasu× Hiroaki, Ogawa× Shinichi, Kitazawa× Kajita, Shin× Hiroaki, Ogawa× Kitazawa, Sin-iti |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The computer tomography for divertor impurity monitor, which measures plasma emissions in the divertor region, for ITER has been conducted using a ray-tracing technique. We have attempted four different solution methods for the inversion problem and compared the results. The solution methods which minimize errors in logarithmic scale had better performance than the methods which minimize errors in linear scale. This is likely due to the fact that the values in the emission profile vary in a wide range of orders of magnitude. The accuracy of the reconstruction has been investigated by changing discharge conditions and the number of field-of-views used. The deterioration in accuracy was most noticeable when the emission profile was reconstructed using only two field-of-views. In addition, the accuracy deteriorated, making the estimation more challenging, under discharge conditions with low emission intensity because of the wider range of emission intensity under such conditions. | |||||
| 書誌情報 |
Plasma and Fusion Research 巻 16, p. 2405019, 発行日 2021-03 |
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| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1585/pfr.16.2405019 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.jspf.or.jp/PFR/PFR_articles/pfr2021/pfr2021_16-2405019.html | |||||
