Measurement of End-Loss Ions Originated from Spontaneously Excited High Frequency Waves by Using an MCP Detector on GAMMA 10/PDX
-
- IZUMI Koki
- Plasma Research Center, University of Tsukuba
-
- IKEZOE Ryuya
- Research Institute for Applied Mechanics, Kyushu University
-
- ICHIMURA Makoto
- Plasma Research Center, University of Tsukuba
-
- HIRATA Mafumi
- Plasma Research Center, University of Tsukuba
-
- SAKAMOTO Mizuki
- Plasma Research Center, University of Tsukuba
-
- SUMIDA Shuhei
- Plasma Research Center, University of Tsukuba
-
- JANG Seowon
- Plasma Research Center, University of Tsukuba
-
- TANAKA Atsuto
- Plasma Research Center, University of Tsukuba
-
- KUBOTA Yushi
- Plasma Research Center, University of Tsukuba
-
- SEKINE Ryo
- Plasma Research Center, University of Tsukuba
-
- KAYANO Hiroki
- Plasma Research Center, University of Tsukuba
-
- NAKASHIMA Yousuke
- Plasma Research Center, University of Tsukuba
この論文をさがす
説明
<p>Effective ICRF heating creates a high ion-temperature plasma with strong ion-temperature anisotropy in the GAMMA 10/PDX central cell, where several Alfvén-ion-cyclotron (AIC) waves are spontaneously excited. It is clearly measured with a microwave reflectometer installed in the central cell that waves with the difference frequencies of the AIC waves are excited in a core region. In addition, it has been observed with an end-loss high-energy ion detector that high-energy ions of over 6 keV are axially transported along the magnetic field lines with the same frequencies as the difference frequencies of the AIC waves. In this study, in order to understand the related wave-particle interaction, another end-loss high-energy ion detector using a micro-channel plate has been developed. By changing the ion retarding grid voltage, which the new detector equips, it is found that an energy dependence exists in the loss mechanism; some frequencies that the axial transport includes disappear for high-energy ions of over 6 keV while they are significant for low-energy ions. In addition, by changing the radial position of the new detector, a radial localization of the axial transport to a core region, which is consistent with the profile of the difference frequencies waves, is indicated.</p>
収録刊行物
-
- Plasma and Fusion Research
-
Plasma and Fusion Research 14 (0), 2402033-2402033, 2019-02-12
一般社団法人 プラズマ・核融合学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390845713061101056
-
- NII論文ID
- 130007633131
-
- NII書誌ID
- AA12346675
-
- ISSN
- 18806821
-
- HANDLE
- 2241/00157940
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可