Magnet characteristic study for klystron of 3.7GHz lower hybrid wave

doi:10.16568/j.0254-6086.201601006

NUCLEAR FUSION AND PLASMA PHYSICS ›› 2016, Vol. 36 ›› Issue (1): 32-36.DOI: 10.16568/j.0254-6086.201601006

• Nuclear Fusion Engineering and Technology • Previous Articles Next Articles

Magnet characteristic study for klystron of 3.7GHz lower hybrid wave

BAI Xing-yu, LIANG Jun, WANG Jie-qiong, CHEN Ya-li

(Southwestern Institute of Physics, Chengdu 610041)

Received:2014-12-30 Revised:2016-01-12 Online:2016-03-15 Published:2016-03-15

HL-2A 3.7GHz速调管磁体磁场特性研究

白兴宇，梁军，王洁琼，陈娅莉

(核工业西南物理研究院，成都 610041)

作者简介:白兴宇(1980-)，男，辽宁新民人，博士，副研究员，从事波与等离子体耦合和加热工程技术研究。
基金资助:
国家磁约束核聚变能发展研究专项(2011GB104001)

Abstract

Abstract:

A new 3.7GHz/2MW/2s LHW system was built on HL-2A tokamak, where TH2103A type klystrons were used as the high power long pulse wave sources. The magnet field distribution in central axis for the klystron was measured via a device for probe fixing. The strongest magnetic field was 176mT at the rough middle of the magnet. Each coil current separately plays the most important role in magnet field distribution at different position. The influence of No.1 power supply was strong nearby the cathode and weaker nearby the resonant cavity. The influence of No.2 power supply was strong nearby the resonant cavity and weaker nearby the output window. The influence of No.3 power supply was strong nearby the output window but much weaker at other places. The data obtained supported for klystron operation optimization.

Key words: LHW, magnet field, klystron, HL-2A tokamak

摘要：

HL-2A装置上建设了1套3.7GHz/2MW/2s的低杂波系统，高功率长脉冲波源使用TH2103型速调管。设计了1套可以固定探针的机构，完成了速调管配套磁体的磁场测量，得到了中心轴线上的磁场分布特性，中心磁场最强达到176mT。在不同的空间位置，3组线圈电流分别对磁场分布起主要影响。1号电源主要影响阴极附近磁场分布，同时对谐振腔也有部分影响；2号电源主要对谐振腔产生影响，同时在功率输出窗口附近有一定影响；3号电源主要在输出窗口附近有影响，其他位置影响不明显。结果为速调管工作状态优化提供了方向。

关键词: 低杂波, 磁场, 速调管, HL-2A装置

CLC Number:

TL62

BAI Xing-yu, LIANG Jun, WANG Jie-qiong, CHEN Ya-li. Magnet characteristic study for klystron of 3.7GHz lower hybrid wave[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2016, 36(1): 32-36.

白兴宇，梁军，王洁琼，陈娅莉. HL-2A 3.7GHz速调管磁体磁场特性研究[J]. 核聚变与等离子体物理, 2016, 36(1): 32-36.

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Magnet characteristic study for klystron of 3.7GHz lower hybrid wave

HL-2A 3.7GHz速调管磁体磁场特性研究

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