Z箍缩诊断系统的触发和抗干扰技术  

Triggering and anti-interfering technology of diagnostic systems used in Z-pinch experiments

作　　者：周少彤[1] 黄显宾[1] 任晓东[1] 王昆仑[1] 徐强[1] 张思群[1] Zhou Shaotong;Huang Xianbin;Ren Xiaodong;Wang Kunlun;Xu Qiang;Zhang Siqun(Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,P.O.Box 919-108,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院流体物理研究所,脉冲功率科学与技术重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2021年第2期28-33,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11575167)。

摘　　要：通过对时间关联信号的筛选、转换和延时等方法建立了用于8 MA脉冲功率装置上Z箍缩实验中诊断设备的触发网络,其输出触发信号与被测X射线之间的时间抖动小于2 ns,满足了纳秒级的诊断时间同步要求。采用屏蔽、接地等有效措施基本消除了放电产生的强电磁环境以及其它杂散信号对触发线缆和诊断设备的干扰,保证了诊断设备的正常工作和实验数据的质量。The pulse power device will produce a strong electromagnetic environment in the process of discharge, which interferes with diagnostic systems in the experiment, leading to their failure to work properly. By selecting, transforming and delaying the time correlated signals, a trigger network has been established for diagnostic instruments in high energy density experiments on an 8 MA pulsed power device. The jitter of time interval between the trigger signal and the X-ray pulse is less than 2 ns, which meets the requirement to synchronize diagnostics with time resolution of nanosecond. Shielding and grounding techniques are used and effectively eliminate the jamming of strong electromagnetic environment and other stray signals produced by the discharge of the device, which also ensure the normal operation of diagnostic instruments and the quality of the experimental data.

关 键 词：强电磁环境 诊断测量 同步触发 屏蔽 

分 类 号：TN972[电子电信—信号与信息处理]