MICROWAVE IMAGING IN LARGE HELICAL DEVICE
Microwave imaging reflectometry (MIR) system and electron cyclotron emission imaging (ECEI) system are under development for the simultaneous reconstruction of the electron density and temperature fluctuation structures in the Large Helical Device (LHD). The MIR observes three-dimensional structure of disturbed cutoff surfaces by using the two-dimensionally distributed horn-antenna mixer array (HMA) of 5 X 7 channels in combination with the simultaneous projection of microwaves with four different frequency components (60.410, 61.808, 63.008 and 64.610 GHz). The ECEI is designed to observe two-dimensional structure of electron temperature by detecting second-harmonic ECE at 97?07 GHz with the one-dimensional HMA (7 channels) in the common optics with MIR system. Both the MIR and the ECEI are realized by the HMA and the band-pass filter (BPF) arrays, which are fabricated by micro-strip-line technique at low-cost.
T.YOSHINAGA Z.B.SHI H.HOJO Y.NAGAYAMA H.TSUCHIYA D.KUWAHARA S.TSUJI-IIO K.AKAKI A.MASE Y.KOGI S.YAMAGUCHI
National Institute for Fusion Science, 322-6 Oroshi, Toki 509-5292, Japan Southwestern Institute of Physics, Box 432 Chengdu, Sichuan 610041, China University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro 152-8550, Japan Kyushu University, 6-1 Kasuga-Koen, Kasuga 816-8580, Japan Fukuoka Institute of Technology, 3-30-1 Wajiro-higashi, Fukuoka 811-0295, Japan Kansai University, 3-3-35 Yamate, Suita 564-8680, Japan
国际会议
三亚
英文
190-195
2010-04-12（万方平台首次上网日期，不代表论文的发表时间）