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多级串联磁绝缘感应电压叠加器次级阻抗优化
  • 摘要

    基于Thevenin原理,建立了一种多级串联磁绝缘感应电压叠加器(magneticallyinsulated induction voltage adder,MIVA)等效电路模型.依据磁绝缘限定条件,给出了MIVA次级磁绝缘传输线(magnetically-insulated transmission line,MITL)最小磁绝缘电流估计方法.仿真分析了12级串联MIVA电压和电流输出特性,结合X射线剂量率计算式,给出了X射线剂量率随次级MITL运行阻抗变化的分布规律.结果表明,多级串联MIVA输出X射线剂量率随次级运行阻抗的增大呈先增大后减小的趋势,MITL存在一个最佳运行阻抗,可使输出的X射线剂量率最大.基于Mendel和Creedon磁绝缘模型,对比给出了次级MITL几何阻抗的两种估计模型,结果表明,除第1级外,其余各级用两种模型估计的几何阻抗偏差系数均小于2%.

  • 作者

    呼义翔  孙凤举  曾江涛  丛培天  HU Yi-xiang  SUN Feng-ju  ZENG Jiang-tao  CONG Pei-tian 

  • 作者单位

    西北核技术研究所,西安,710024/强脉冲辐射环境模拟与效应国家重点实验室,西安,710024

  • 刊期

    2015年3期

  • 关键词

    感应电压叠加器  磁绝缘传输线  运行阻抗  几何阻抗  X射线剂量率 

参考文献
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