激光惯性约束聚变装置内复合环境的线缆耦合效应  

Cable Coupling Effect of Compound Chamber Environment in Laser Inertial Confinement Fusion Driver

作　　者：张茂兴 孟萃[1,2] 徐志谦 吴平 钟媚青 Zhang Maoxing;Meng Cui;Xu Zhiqian;Wu Ping;Zhong Meiqing(Department of Engineering Physics,Tsinghua University,Beijing 100084,China;Key Laboratory of Particle and Radiation Imaging of Ministry of Education,Beijing 100084,China)

机构地区：[1]清华大学工程物理系,北京100084 [2]粒子技术与辐射成像教育部重点实验室,北京100084

出　　处：《光学学报》2022年第23期136-145,共10页Acta Optica Sinica

摘　　要：激光惯性约束聚变(ICF)装置靶室内环境复杂,激光打靶产生的电离辐射和电磁辐射都会在靶室内线缆上产生耦合电流,从而对信号产生干扰。使用自主编写的仿真代码和CST软件对两种屏蔽线缆的辐射响应进行计算,并在神光-Ⅲ靶室内进行辐照实验,对实验结果进行初步分析比较,发现RG142线缆的电磁辐射响应小,电离辐射响应大,CERN SPA6线缆正好相反。最后,根据耦合规律提出了一种线缆的复合屏蔽结构。The chamber environment of a laser inertial confinement fusion(ICF)driver is usually complex.Specifically,signals will be affected by the coupling currents induced by ionizing radiation and electromagnetic radiation during the laser shots.In this paper,radiation responses of two kinds of shielded cables are calculated by using the self-written code and CST software,respectively,and the irradiation experiment is carried out based on SG-Ⅲlaser driver,with the results compared and analyzed.It is found that the electromagnetic radiation response of the RG142 cable is slight,but its ionizing radiation is strong,which is the opposite of the CERN SPA6 cable.Finally,according to the coupling law,a composite shielding structure of cable is proposed.

关 键 词：激光光学 激光惯性约束聚变 复合环境 线缆耦合 复合屏蔽 

分 类 号：TN202[电子电信—物理电子学] O434.14[机械工程—光学工程]