| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2021-12-23 |
| タイトル |
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タイトル |
Moderation of neoclassical impurity accumulation in high temperature plasmas of helical devices |
| 言語 |
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言語 |
eng |
| キーワード |
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主題Scheme |
Other |
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主題 |
impurities |
| キーワード |
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主題Scheme |
Other |
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主題 |
neoclassical transport |
| キーワード |
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主題Scheme |
Other |
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主題 |
stellarators |
| キーワード |
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主題Scheme |
Other |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Velasco, J.L.
CALVO, I.
SATAKE, Shinsuke
ALONSO, A.
NUNAMI, Masanori
YOKOYAMA, Masayuki
SATO, Masahiko
Estrada, T.
FONTDECABA, J.M.
LINIERS, M.
McCarthy, K.J.
MEDINA, F.
Milligen, B.Ph. van
Ochando, M.A.
PARRA, F.
SUGAMA, Hideo
Zhezhera, A.
LHD Experimental Group,
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LHD Experimental Group,
LHD Experimental Groups,
the LHD Experimental Groups,
the LHD Experimental Group,
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Search repository
Team, JT-II
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Achieving impurity and helium ash control is a crucial issue in the path towards fusion-grade magnetic confinement devices, and this is particularly the case of helical reactors, whose low-collisionality ion-root operation scenarios usually display a negative radial electric field which is expected to cause inwards impurity pinch. In this work we discuss, based on experimental measurements and standard predictions of neoclassical theory, how plasmas of very low ion collisionality, similar to those observed in the impurity hole of the large helical device (Yoshinuma et al and The LHD Experimental Group 2009 Nucl. Fusion 49 062002, Ida et al and The LHD Experimental Group 2009 Phys. Plasmas 16 056111 and Yokoyama et al and LHD Experimental Group 2002 Nucl. Fusion 42 143), can be an exception to this general rule, and how a negative radial electric field can coexist with an outward impurity flux. This interpretation is supported by comparison with documented discharges available in the International Stellarator-Heliotron Profile Database, and it can be extrapolated to show that achievement of high ion temperature in the core of helical devices is not fundamentally incompatible with low core impurity content. |
| 書誌情報 |
Nuclear Fusion
巻 57,
号 1,
p. 016016,
発行日 2016-10-27
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| 出版者 |
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出版者 |
IOP Publishing |
| 出版者 |
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出版者 |
International Atomic Energy Agency |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0029-5515 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00759871 |
| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/0029-5515/57/1/016016 |
| 権利 |
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権利情報 |
‘This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at ‘This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0029-5515/55/12/123019.. |
| 情報源 |
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関連名称 |
Paper Moderation of neoclassical impurity accumulation in high temperature plasmas of helical devices J.L. Velasco1, I. Calvo1, S. Satake2,3, A. Alonso1, M. Nunami2,3, M. Yokoyama2,3, M. Sato2, T. Estrada1, J.M. Fontdecaba1, M. Liniers1, K.J. McCarthy1, F. Medina1, B. Ph Van Milligen1, M. Ochando1, F. Parra4,5, H. Sugama2, A. Zhezhera6, The LHD Experimental Team2 and The TJ-II Team1Hide full author list Published 27 October 2016 • © 2016 EURATOM Nuclear Fusion, Volume 57, Number 1 Citation J.L. Velasco et al 2017 Nucl. Fusion 57 016016 |
| 関連サイト |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1088/0029-5515/57/1/016016 |
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関連名称 |
Publisher version |
| 著者版フラグ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| NAIS |
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Nucl.Fusion_57_pp016016 (1.4 MB)
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