Observation of Potential Increase in the Central Cell due to ICRF Heating in the Non-Axisymmetric Anchor Cell on GAMMA 10/PDX
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- TANAKA Atsuto
- Plasma Research Center, University of Tsukuba
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- ICHIMURA Makoto
- Plasma Research Center, University of Tsukuba
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- HIRATA Mafumi
- Plasma Research Center, University of Tsukuba
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- IKEZOE Ryuya
- Research Institute for Applied Mechanics, Kyushu University
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- SUMIDA Shuhei
- Plasma Research Center, University of Tsukuba
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- JANG Seowon
- Plasma Research Center, University of Tsukuba
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- IZUMI Koki
- Plasma Research Center, University of Tsukuba
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- KUBOTA Yushi
- Plasma Research Center, University of Tsukuba
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- SEKINE Ryo
- Plasma Research Center, University of Tsukuba
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- KAYANO Hiroki
- Plasma Research Center, University of Tsukuba
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- SAKAMOTO Mizuki
- Plasma Research Center, University of Tsukuba
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- NAKASHIMA Yousuke
- Plasma Research Center, University of Tsukuba
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説明
<p>We used the additional Ion Cyclotron Range of Frequency (ICRF) heating in the anchor cell for the high density plasma production. When the ICRF waves are excited with antennas installed in the anchor cell, it is observed that the plasma potential increases significantly and forms non-axisymmetric potential distribution in the periphery of the central cell. Experiments with different frequencies were carried out to understand the physical mechanism of this potential change due to the ICRF waves. It is confirmed that the ion heating does not play an important role to the potential increase. The floating potentials on some tips set outside of the plasma in the anchor cell remarkably decrease during the additional heating and non-axisymmetric distribution of the floating potential in the central cell depends on the antenna location in the anchor cell. It is suggested that the radial transport of electrons near the antennas in the non-axisymmetric anchor cells with the ICRF antennas is a possible candidate of the potential increase in the central cell.</p>
収録刊行物
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- Plasma and Fusion Research
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Plasma and Fusion Research 14 (0), 2401028-2401028, 2019-02-12
一般社団法人 プラズマ・核融合学会
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詳細情報 詳細情報について
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- CRID
- 1390564238083904768
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- NII論文ID
- 130007633100
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- NII書誌ID
- AA12346675
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- ISSN
- 18806821
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- HANDLE
- 2241/00157937
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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