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Effect of High Ion Temperature on the Polytropic Coefficient in the End Region of GAMMA 10/PDX
http://hdl.handle.net/2241/00157946
f5dbd1c0-cef2-43c8-9f30-68836048c591
名前 / ファイル | ライセンス | Actions | |
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item type | Journal Article(1) | |||||
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公開日 | 2019-10-25 | |||||
タイトル | ||||||
タイトル | Effect of High Ion Temperature on the Polytropic Coefficient in the End Region of GAMMA 10/PDX | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
タイプ | journal article | |||||
著者 |
坂本, 瑞樹
× 坂本, 瑞樹× 江角, 直道× 中嶋, 洋輔× NOJIRI, Kunpei× TOGO, Satoshi× IIJIMA, Takaaki× JANG, Seowon× TERAKADO, Akihiro× KINOSHITA, Yosuke× HARA, Toshiki× TAKIZUKA, Tomonori× OGAWA, Yuichi |
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抄録 | ||||||
内容記述 | The effect of high ion temperature on the ion polytropic coefficient (γ) was experimentally investigated in the end region of the GAMMA 10/PDX tandem mirror. The ion temperature parallel to the magnetic field (Ti||) was varied using the ion cyclotron range of frequencies (ICRF) waves, which heat the plasma in the central cell, and by applying an additional gas puff in the central cell. Assuming the ion sound speed, γTi|| was evaluated by a Langmuir probe, and Ti|| was evaluated in an ion energy analyzer. These parameters were combined to evaluate γ. The time evolutions of γTi|| obtained from the probe and Ti|| obtained from the energy analyzer were similar. The plasma in the end region can be regarded as collisionless, but γ was lower with ICRF heating than without the heating. A high Ti|| component was identified in the heated case. As mentioned in a previous numerical study [B. Lin et al., Phys. Plasmas 23, 083508 (2016)], it is experimentally suggested that γ can be reduced by the high Ti|| component resulting from the ICRF heating. | |||||
書誌情報 |
Plasma and Fusion Research 巻 14, p. 2401086, 発行日 2019-06 |
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ISSN | ||||||
収録物識別子 | 1880-6821 | |||||
書誌レコードID | ||||||
収録物識別子 | AA12346675 | |||||
DOI | ||||||
関連識別子 | ||||||
関連識別子 | 10.1585/pfr.14.2401086 | |||||
権利 | ||||||
権利情報 | © 2019 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research |