强流电子加速器中气体开关与真空二极管的光学特性  

Optical characteristics of gas switch and vacuum diode of high power pulse modulator

作　　者：殷毅 钟辉煌 杨志龙 杨杰 刘金亮 张军 

机构地区：[1] College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

出　　处：《强激光与粒子束》2010年第12期2969-2972,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(10975186,11075209)

摘　　要：利用光纤传感器与光电二极管相结合的方法,对强流电子加速器中气体火花开关以及真空二极管的发光特性进行了研究,对影响光电二极管测量的因素进行了理论计算与模拟研究。在气体开关导通电压1.7 MV,二极管电压1.07 MV,电流18 kA时,进行了多次实验,得到了发光特性与击穿电压、电流的关系。同时,对利用光学检测方法测量主开关或真空二极管电压、电流大小得可行性进行了分析。Gas switch and vacuum diode are important parts of high power pulse modulator; the measurements of their characteristic parameters are focused on voltage and current. In this paper, using the photodiode and optic fiber, the optical characteristic parameters of the gas discharge switch and vacuum diode are obtained. Factors that influence the measurement have been theoretically analyzed and simulatively studied. Experiments were done at the charging voltage of the pulse forming line of 1.7 MV, the vacuum diode voltage is 1.07 MV, and vacuum current is 18 kA. The relations between the breakdown voltage, current and the optical characteristics are obtained from experiments; the feasibility of using the optical method to measure the voltage and current of the high power pulse modulator are also analyzed.

关 键 词：强流 电子加速器 气体开关 真空二极管 光学特性 high power 光电二极管 发光特性 气体火花开关 管电压 电流 光纤传感器 模拟研究 理论计算 检测方法 击穿电压 导通电压 测量 主开关 实验 

分 类 号：O4[理学—物理]