环形截面氙灯的放电特性与泵浦效率实验研究  

Experiment study of discharge characteristics and pumping efficiency of air bubble flash lamp

作　　者：杨泽锋[1] 李兴文[1] 莫永鹏 贾申利[1] 刘建军[2] 李海兵[2] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,西安710049 [2]中国科学院上海光学精密机械研究所,上海201800

出　　处：《强激光与粒子束》2015年第9期111-115,共5页High Power Laser and Particle Beams

基　　金：国防重大专项基金项目

摘　　要：针对脉冲氙灯的结构，探索了一种新型的环形截面氙灯以获得更高的泵浦效率。环形截面氙灯内嵌空气玻璃管，拥有中空的新结构，对脉冲氙灯放电特性产生了新的影响，进一步影响了泵浦效率。实验对比了传统氙灯和环形截面氙灯的放电特性、辐射以及钕玻璃的荧光输出。实验结果表明：新型的环形截面氙灯拥有较高的电阻，较低的放电电流与进灯能量，辐射效率和钕玻璃荧光输出分别提高了3％～4％和2％～3％。The improvement of the amplifier gain and amplifier efficiency is quite attractive in inertia confined fusion(ICF).As an important component of the amplifier,the flash lamp pumping efficiency directly affects the amplifier efficiency.In this paper,a new structure of flash lamp is designed and constructed,going for a higher pumping efficiency.Comparison between the new and the traditional structures are made,in terms of electrical characteristics,radiation and fluorescence behaviors of Nd:glass.Experimental results indicate that the resistance increases in the new structure,corresponding to a lower current and energy feeding.As a result,the intensities of radiation and fluorescence are improved by 3% ~4% and 2% ~3% respectively.The mechanisms of the improvement,the evolution of the discharge plasma channel,and the scheme of further optimization for the new structure are discussed.

关 键 词：环形截面氙灯 电流面密度 能量 辐射 荧光输出 

分 类 号：TN245[电子电信—物理电子学]