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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/10.15047/00012500
251134d5-919f-47a5-bcf5-47662b9563c4
名前 / ファイル ライセンス アクション
Narushima2016NF_Rev2.pdf Narushima2016NF_Rev2 (4.8 MB)
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Item type 学術雑誌論文 / Journal Article(1)
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.

Narushima, Y.

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Sakakibara, S.

× Sakakibara, S.

Sakakibara, S.

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SUZUKI, Y.

× SUZUKI, Y.

SUZUKI, Y.

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Watanabe, K.Y.

× Watanabe, K.Y.

Watanabe, K.Y.

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Ohdachi, S.

× Ohdachi, S.

Ohdachi, S.

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Takemura, Y.

× Takemura, Y.

Takemura, Y.

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YOSHIMURA, M.

× YOSHIMURA, M.

YOSHIMURA, M.

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Ida, K.

× Ida, K.

Ida, K.

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Castejón, F

× Castejón, F

Castejón, F

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López-Bruna, D

× López-Bruna, D

López-Bruna, D

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Hegna, C.C.

× Hegna, C.C.

Hegna, C.C.

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Kobayashi, M.

× Kobayashi, M.

Kobayashi, M.

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TANAKA, H.

× TANAKA, H.

TANAKA, H.

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AKIYAMA, T.

× AKIYAMA, T.

AKIYAMA, T.

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Ohno, N

× Ohno, N

Ohno, N

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LHD Experiment Group,

× LHD Experiment Group,

LHD Experiment Group,
The 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
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
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Cite as

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, The LHD Experiment Group, , 2017, Observations of sustained phase shifted magnetic islands from externally imposed m/n = 1/1 RMP in LHD: IOP Science, 076024–076030 p.

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