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Change in Edge Fluctuations Synchronized with Heat Pulse in the JFT-2M Tokamak
https://repo.qst.go.jp/records/48233
https://repo.qst.go.jp/records/48233969c541a-b5e6-452c-a6d5-23fcd9f17dab
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-07-31 | |||||
タイトル | ||||||
タイトル | Change in Edge Fluctuations Synchronized with Heat Pulse in the JFT-2M Tokamak | |||||
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 |
Nagashima, Yoshihiko
× Nagashima, Yoshihiko× Itoh, Kimitaka× Itoh, Sanae-I× Fujisawa, Akihide× Hoshino, Katsumichi× Hoshino, Katsumichi× Hoshino, Katsumichi× 星野 克道 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The change in edge fluctuations synchronized with a heat pulse during Sawtooth oscillation has been investigated in the JFT-2M tokamak using a reciprocating Langmuir probe. Data window of a heat pulse is segmented into a number of time frames, and time traces of auto-power spectra at each frame are calculated. Conditional averaging over a number of heat pulse events in a single discharge is performed in order to reduce the variance of the fluctuation spectra. At each heat pulse event, a reduction in the geodesic acoustic mode fluctuation power and an increase in the turbulence fluctuation power are observed. The change in the fluctuation powers suggests that the edge heat pulse during Sawtooth instability could affect the edge turbulence structure. |
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書誌情報 |
J. Phys. Soc. Jpn 巻 85, 号 6, p. 06350-1-063501-3, 発行日 2016-04 |
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出版者 | ||||||
出版者 | 日本物理学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.7566/jpsj.85.063501 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.7566/JPSJ.85.063501 | |||||
関連名称 | http://doi.org/10.7566/JPSJ.85.063501 |