Behaviour of ion temperature in electron and ion heating regimes observed with ECH, NBI and ICRF discharges of LHD

被引：11

作者：

Morita, S ^{[1
]}

Goto, M ^{[1
]}

Kubo, S ^{[1
]}

Murakami, S ^{[1
]}

Narihara, K ^{[1
]}

Osakabe, M ^{[1
]}

Seki, T ^{[1
]}

Takeiri, Y ^{[1
]}

Tanaka, K ^{[1
]}

Yamada, H ^{[1
]}

Funaba, H ^{[1
]}

Idei, H ^{[1
]}

Ida, K ^{[1
]}

Ikeda, K ^{[1
]}

Inagaki, S ^{[1
]}

Kaneko, O ^{[1
]}

Kawahata, K ^{[1
]}

Komori, A ^{[1
]}

Kumazawa, R ^{[1
]}

Masuzaki, S ^{[1
]}

Miyazawa, J ^{[1
]}

Morisaki, T ^{[1
]}

Motojima, O ^{[1
]}

Muto, S ^{[1
]}

Mutoh, T ^{[1
]}

Nagayama, Y ^{[1
]}

Nakamura, Y ^{[1
]}

Nishimura, K ^{[1
]}

Ohdachi, S ^{[1
]}

Ohyabu, N ^{[1
]}

Oka, Y ^{[1
]}

Ozaki, T ^{[1
]}

Peterson, BJ ^{[1
]}

Sakakibara, S ^{[1
]}

Sakamoto, R ^{[1
]}

Sasao, M ^{[1
]}

Sato, K ^{[1
]}

Shimozuma, T ^{[1
]}

Shoji, M ^{[1
]}

Suzuki, H ^{[1
]}

Toi, K ^{[1
]}

Tokuzawa, T ^{[1
]}

Tsumori, K ^{[1
]}

Watanabe, KY ^{[1
]}

Watari, T ^{[1
]}

Yamada, I ^{[1
]}

机构：

[1] Natl Inst Fus Sci, Gifu 5095292, Japan

来源：

NUCLEAR FUSION | 2002年 / 42卷 / 10期

关键词：

D O I：

10.1088/0029-5515/42/10/301

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Ion temperature at the plasma centre has been measured from Doppler broadening of Ti XXI (2.61 Angstrom) and Ar XVII (3.95 Angstrom) x-ray lines using a newly installed crystal spectrometer with CCD detector in ECH, NBI and ICRF plasmas of Large Helical Device (LHD). The ion temperature obtained in a range of 0.6 and 3.5 keV was analysed with electron density and compared with electron temperature. A new parameter range of Ti > Te was found in low-density (n(e) < 10(13) cm(-3)) H-minority ICRF discharges operated in the ion-heating regime (P-i greater than or equal to P-e), whereas the ion temperature was roughly equal to the electron temperature in NBI discharges operated in the electron-heating regime (P-i < P-e). The ion temperature in the ICRF and ICRF + NBI discharges was correlated with the input power to bulk ions over the ion density (P-i/n(i)). As a result, a good correlation was obtained between them and it also indicated a clear rise of the ion temperature for the increasing P-i in a range of P-i/n(i) < 5 (MW/10(13) cm(-3)).

引用

页码：1179 / 1183

页数：5

共 18 条

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