摘要
介绍了利用电子加速器进行内带电地面模拟试验研究的关键部分——弱束流的获取及测量方法研究。电子束在通过微孔板散射后得到了弱束流,并用法拉第筒进行了测量,得到了地面模拟试验需要的pA级的弱束流。
The methode of acquisition and measurement of feeble electron current, which is the key part of deeply dielectric charging simulative, is introduced. The electron beam is scattered onto the target samples by a micropore board. The beam through a Faraday cup is measared.
出处
《真空与低温》
2007年第2期107-110,共4页
Vacuum and Cryogenics
基金
真空低温技术与物理国家级重点实验室基金(51475040304JW2301)资助
关键词
电子加速器
弱束流
微孔板
法拉第筒
内带电
electron accelerator
feeble current
Faraday cup
internal charging
micropore board
