Conservational model for formation process of magnetic insulation
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摘要: 理论分析了平行板、同轴、共心同轴圆锥3种典型传输线，运用磁通量守恒求解了初始电流的解析表达式，利用电荷守恒求解了初始电压的解析表达式，在此基础上定量计算了一定初始电流、初始电压下形成的稳态磁绝缘电流、阴极电流与电压，并采用粒子模拟软件对其进行2维数值模拟，模拟结果与理论值吻合较好。Abstract: For the plane magnetically insulated transmission line(MITL), coaxial MITL, and cone MITL, the analytical expression of initial current is derived according to the conservation of magnetic flux, and the analytical expression of initial voltage is derived according to the conservation of charge. Then, the relations of the initial current and voltage with the final steady state current and voltage are numerically calculated. The results of simulation agree well with the results of two-dimensional particle-in-cell(PIC) simulation.
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