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Study of multiple impurity seeding effect using SONIC integrated divertor code for JT‐60SA plasma prediction
https://repo.qst.go.jp/records/79619
https://repo.qst.go.jp/records/79619a71726fc-6160-4f05-8501-77722a86dd10
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-23 | |||||
| タイトル | ||||||
| タイトル | Study of multiple impurity seeding effect using SONIC integrated divertor code for JT‐60SA plasma prediction | |||||
| 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 |
Yamoto, Shohei
× Yamoto, Shohei× Hoshino, Kazuo× Homma, Yuki× Nakano, Tomohide× Hayashi, Nobuhiko× Yamoto, Shohei× Hoshino, Kazuo× Homma, Yuuki× Nakano, Tomohide× Hayashi, Nobuhiko |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In order to study the potential impurity seeding operation regime of the future fusion devices, the first application of the integrated divertor code SONIC to the Ar + Ne mixed‐impurity seeding operation of JT‐60SA steady‐state high‐β plasma has been carried out. In the case, Ne is added to Ar‐only seeding, the separatrix electron density has fell into the desired low separatrix electron density of the scenario. This is mainly because the D+ flow velocity towards the inner divertor has been increased by the Ne seeding. The resultant friction force transports Ar impurities towards the inner divertor region, while impurities are stagnated in the top of scrape‐off layer (SOL) in the Ar‐only seeding case. The higher impurity radiation power in the divertor regions and lower one in the SOL region above the X point have been obtained in mixed‐impurity seeding cases, which show similar tendency as the Ar + Ne mixed‐impurity seeding experiment in JT‐60 U. At the core edge, Zeff has been slightly increased and the radiation power has been decreased as the Ne seeding rate increases. The core plasma/impurity transport has been also evaluated by the TOPICS code using the impurity density at the core edge computed by the SONIC as a boundary parameter. The results show lower Zeff and radiation power, and higher electron temperature in the core in the mixed‐impurity seeding cases. Above possible contributors to the better energy confinement indicate that the mixed‐impurity seeding operation might be more effective than Ar‐only seeding operation. | |||||
| 書誌情報 |
Contributions to Plasma Physics 巻 60, 号 5-6, 発行日 2019-12 |
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| 出版者 | ||||||
| 出版者 | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1521-3986 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1002/ctpp.201900146 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://onlinelibrary.wiley.com/doi/full/10.1002/ctpp.201900146 | |||||
