Development of the 3.7 GHz LHCD system on HL-2A

作者：Lu B^*; Huang M; Zeng H; Bai X Y; Mao X H; Lu Z H; Liang J; Kang Z H; Wang M W; Feng K; Wang H; Wang C; Wang J Q; Wei S; Yao T; Bu Y N; Feng J; Cheng G Y; Song S D; Xia D H; Rao J

来源：Journal of the Korean Physical Society, 2014, 65(8): 1243-1246.

DOI：10.3938/jkps.65.1243

• LHCD
• HL-2A
• PAM

A 2 MW-3.7 GHz lower hybrid current drive (LHCD) system is under development for physics experiments on the HL-2A device. The RF Power is generated by four TH2103A klystron amplifiers and propagates in the TE10 mode through WR284 waveguides. The transmission lines with a length of 20 m to 30 m are pressurized with 2 bars of nitrogen to decrease the possibility of arcing. The launcher, based on the passive-active multi-junction (PAM) concept, has been developed and is currently being realized. It was designed for a power spectrum peaked at N-|| = 2.75 with good coupling properties over a wide range of plasma parameters. The four klystrons are fed by a high-voltage power supply (HVPS) based on the pulse step modulation (PSM) concept with a fast switch-off time of less than ten mu s. This system is expected to be in operation within 1 years and will explore many international thermonuclear experimental reactor (ITER) related LH experiments in the following years.

• 出版日期2014-10
• 单位核工业西南物理研究院