HIGH-FREQUENCY ION BERNSTEIN WAVE HEATING EXPERIMENT IN THE JIPP T-IIU TOKAMAK

被引:29
作者
SEKI, T
KUMAZAWA, R
WATARI, T
ONO, M
YASAKA, Y
SHIMPO, F
ANDO, A
KANEKO, O
OKA, Y
ADATI, K
AKIYAMA, R
HAMADA, Y
HIDEKUMA, S
HIROKURA, S
IDA, K
KARITA, A
KAWAHATA, K
KAWAMOTO, T
KAWASUMI, Y
KITOH, Y
KOJIMA, M
MASAI, K
MORITA, S
NARIHARA, K
OGAWA, Y
OHKUBO, K
OKAJIMA, S
OZAKI, T
SAKAMOTO, M
SASAO, M
SATO, K
SATO, KN
TAKAHASHI, H
TANIGUCHI, Y
TOI, K
TSUZUKI, T
机构
[1] PRINCETON PLASMA PHYS LAB, PRINCETON, NJ 08543 USA
[2] CHUBU UNIV, COLL ENGN, KASUGAI 487, JAPAN
[3] KYOTO UNIV, FAC ENGN, KYOTO 606, JAPAN
[4] UNIV TOKYO, FAC ENGN, TOKYO 113, JAPAN
关键词
D O I
10.1088/0029-5515/32/12/I09
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
An experiment in a new regime of ion Bernstein wave (IBW) heating was carried out using 130 MHz high power transmitters in the JIPP T-IIU tokamak. The heating regime utilized the IBW branch between the 3rd and 4th harmonics of the hydrogen ion cyclotron frequencies. This harmonic number is the highest one used in IBW experiments conducted previously. The net radiofrequency (RF) power injected into the plasma is around 400 kW and is limited by the transmitter output power. Core heating of ions and electrons was confirmed in the experiment and density profile peaking was found to be a special feature of IBW heating. Peaking of the density profile was also found when IBWs were injected into neutral beam heated discharges. An analysis, using a transport code with these experimental data, indicates thal particle and energy confinement should be improved in the plasma core region upon application of IBW heating. It is also found that the ion energy distribution function observed during IBW heating has a smaller high energy tail than those observed in conventional fast magnetosonic wave ICRF heating regimes. The ion energy distribution function obtained during IBW heating is in reasonable agreement with that calculated using the quasi-linear RF diffusion/Fokker-Planck model.
引用
收藏
页码:2189 / 2201
页数:13
相关论文
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