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聚龙一号装置磁绝缘传输线的电流损失特性

DOI: 10.13336/j.1003-6520.hve.2015.06.010, PP. 1844-1851

Keywords: 聚龙一号装置,磁绝缘传输线,电流损失,全电路计算,Z-pinch,磁驱动负载

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Abstract:

聚龙一号装置是我国自主研制的首台多路并联超高功率脉冲装置,可根据物理实验的需要工作在不同的脉冲输出模式,负载上获得的电流脉冲前沿75~600ns、峰值5~10MA可调。4层圆盘锥型磁绝缘传输线是聚龙一号装置实现超高功率脉冲向负载传输的关键部件,磁绝缘传输线中产生的电流损失会对负载电流波形产生影响并使能量传输效率降低。为此,针对聚龙一号装置,通过全电路计算,在长短两种脉冲输出模式下,研究了磁绝缘传输线的电流损失特性。研究表明对于电流前沿较快的Z-pinch实验类型,磁绝缘形成过程中外磁绝缘线的损失电流总和约为940kA,磁绝缘形成后在柱孔汇流区的损失为330~743kA;而对于前沿较慢的准等熵压缩实验类型,对应的损失分别为223kA和77~174kA。

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