基于LTD技术900kA的Z箍缩驱动器设计  

Design of a 900kA LTD accelerator for wire-array Z-pinch experiments

作　　者：周林[1] 李正宏[1] 梁川[1] 李名加[1] 王真[1] 朱成银[1] 蔡易平[1] 杨军[1] ZHOU Lin;LI Zhenghong;LIANG Chuan;LI Mingjia;WANG Zhen;ZHU Chengyin;CAI Yiping;YANG Jun(Institution of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang Sichuan 621999,China)

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621999

出　　处：《太赫兹科学与电子信息学报》2017年第3期513-517,共5页Journal of Terahertz Science and Electronic Information Technology

摘　　要：介绍了一种用于丝阵Z箍缩(Z-pinch)内爆实验研究的脉冲放电模块的设计。模块基于直线型变压器驱动器(LTD)技术,包含34个放电支路,通过4个铁基非晶磁芯耦合。每支路由2个40nF电容器和1只4间隙串联气体开关组成,回路电感为220nH。设计了水电阻负载检验模块输出性能,在匹配状态下,负载上的输出电流峰值916 k A,上升时间99.8 ns。设计了磁绝缘传输线将输出脉冲传输至Z-pinch丝阵负载,并利用"零维模型"对LTD模块和负载的耦合放电进行了模拟计算。结果显示,丝阵负载上的放电电流峰值可达960 k A,上升时间为114 ns。A design of a pulsed discharge cavity for Z-pinch wire-array implosion experiments on basis of the Linear Transformer Driver(LTD)technology is presented.The cavity is consisted of 34 bricks,which are coupled through 4 Matglas toroidal cores.Each brick has two 40 nF capacitors and a gas switch with 4 gaps in series,and the loop inductance is 220 nH.The cavity can generate a 916 kA,99.8 ns pulse to the matched resistance making of water resistors.A magnetically insulated transmission line is designed to transmit the pulse from the LTD cavity to a wire array Z-pinch load.Simulation using the“zero dimension model”is conducted,showing that the pulsed current on the wire array is 960 kA at peak value and 114 ns at rising time.

关 键 词：直线型变压器驱动器(LTD) 磁绝缘传输线(MITL) Z箍缩(Z-pinch) 

分 类 号：TL632[核科学技术—核技术及应用]