摘要
论述了天光一号电子束泵浦 Kr F准分子激光预放大器电子束产生和传输系统的研制。针对低电压 ( 40 0 k V)和高电流密度 ( 1 4 3 Acm-2 ) ,重点考虑了二极管真空绝缘界面、电极结构、漂移区长度和主膜支撑等问题并介绍了实验结果 :二极管电压在 4 50 k V以上仍能稳定工作 ,电流上升前沿约2 0 ns,电子束总束能 4 .2 k J以上。只要开关导通时间选在 PFL电压峰值附近 ,Marx建立时间抖动小于2 0 ns,对总束能的影响将小于 5%。
This paper describes the design and construction of the production and transmission system of electron beams for “Heaven Ⅰ” preamplifier. To obtain lower voltage (400kV) and higher current density (143A·cm -2 ) for the optical aperture ( φ 12cm) and required laser output energy (40J) the diode separator structure in the vacuum side, electrode form, length of drift space, Hibachi open area, etc. are considered. The experiment results are given and the influence of the Marx voltage start time on electron beams energies is discussed for the fixed switch trigger time.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2000年第1期99-102,共4页
High Power Laser and Particle Beams
基金
国家863惯性约束聚变领域资助课题
