红外与毫米波学报2019，Vol.38Issue(4)：419-425,7.DOI:10.11972/j.issn.1001-9014.2019.04.005
兆瓦级回旋管单级降压收集极横向磁扫描系统的仿真
Simulation of transverse field sweeping system for a MW-class gyrotron with single-stage depressed collector
摘要
Abstract
The simulation of transverse field sweeping system (TFSS) for a 170 GHz,MW-class gyrotron with single-stage depressed collector (SDC) is presented in this paper.The adoption of SDC aims to recover part residual kinetic energy of spent electrons as well as to improve the total efficiency exceeding 55％.Transverse field sweeping system is coming into use to expand the spent electron trajectory length to 1100 mm to keep the specific heat dissipation on the collector surface within technically acceptable limits.Furthermore the modulation depth of sweeping signal and the number of transverse coils are simulated to get an optimal result 38.9％ and 6 leading to an acceptable peak averaged power density 117.1 W/cm2.In order to ensure the safety and feasibility in actual situation,the cooling system with axial groves for collector is also designed and the thermal and fluid analysis are carded out by commercial available software ANSYS.The maximum temperature of inner and outer collector surface are 156.09 ℃ and 140.35 ℃ respectively.The range of water temperature at the inlet and outlet are 20 ～ 26.68 ℃and 38.01 ～ 58.56 ℃ respectively.关键词
回旋管/单级降压收集极/横向磁扫描系统/热和流体分析Key words
gyrotron/single-stage depressed collector/transverse field sweeping system/thermal and fluid analysis分类
信息技术与安全科学引用本文复制引用
王恺,薛谦忠,张珊,赵鼎,张连正..兆瓦级回旋管单级降压收集极横向磁扫描系统的仿真[J].红外与毫米波学报,2019,38(4):419-425,7.基金项目
Supported by National Natural Science Foundation of China (11475182,61671431) （11475182,61671431）
