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Observations of sustained phase shifted magnetic islands from externally imposed m/n = 1/1 RMP in LHD
https://doi.org/10.15047/00012500
https://doi.org/10.15047/00012500251134d5-919f-47a5-bcf5-47662b9563c4
名前 / ファイル | ライセンス | アクション |
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Narushima2016NF_Rev2 (4.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-05-25 | |||||
タイトル | ||||||
タイトル | Observations of sustained phase shifted magnetic islands from externally imposed m/n = 1/1 RMP in LHD | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15047/00012500 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Narushima, Y.
× Narushima, Y.× Sakakibara, S.× SUZUKI, Y.× Watanabe, K.Y.× Ohdachi, S.× Takemura, Y.× YOSHIMURA, M.× Ida, K.× Castejón, F× López-Bruna, D× Hegna, C.C.× Kobayashi, M.× TANAKA, H.× Akiyama, T.× Ohno, N× LHD, Experiment Group |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | New observations in the Large Helical Device (LHD) show that the magnetic islands externally imposed by m/n = 1/1 resonant magnetic perturbation (RMP) can be maintained in an intermediate state with a finite phase shift away from the value present in vacuum. Given the previous experimental observation that the saturated magnetic islands show either growth or healing, the intermediate states are realized in the “healing region” in the beta and collisionality space, which implies that a parameter other than beta and collisionality should exist in order to determine the island state. Theories based on the competition between electromagnetic torques and poloidal flow-induced viscous torques provide a prediction for the intermediate state. These two types of torques might be balanced to realize the steadily maintained intermediate state whereas the islands are placed in the growth state or healing state in the case in which the balance is broken. The experimental observation shows that there is a possibility for the magnetic island phase to deviate from its designed position. If the parameters are controlled properly, it is possible to control the phase of the magnetic island, which may permit continued utilization of the island divertor concept. | |||||
書誌情報 |
Nuclear Fusion 巻 57, 号 7, p. 076024-076030, 発行日 2017-05-24 |
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出版者 | ||||||
出版者 | IOP Science | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1741-4326 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1741-4326/aa6dce | |||||
権利 | ||||||
権利情報 | @2017 IAEA, Vienna | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | 10.1088/1741-4326/aa6dce | |||||
関連名称 | Publisher version | |||||
NAIS | ||||||
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