Polarity effect for exploding wires in a vacuum.
Polarity effect for exploding wires in a vacuum.
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DOI：
10.1103/physreve.66.046413
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发表时间：
2002-10
期刊：
影响因子：
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通讯作者：
G. Sarkisov;P. Sasorov;K. Struve;D. Mcdaniel;A. Gribov;G. M. Oleinik
中科院分区：
文献类型：
--
作者：
G. Sarkisov;P. Sasorov;K. Struve;D. Mcdaniel;A. Gribov;G. M. Oleinik
实验证明了径向电场对真空电爆炸过程中能量沉积的强烈影响。当径向电场“推动”电子进入金属线时，具有正极性的金属线爆炸产生的沉积能量是径向电场“驱逐”电子时具有负极性的金属线的两倍。此外，沉积能量的轴向结构也发生了变化。这种效应可以用径向电场对金属丝表面电子发射和蒸气击穿的影响来解释。
Experimental evidence for a strong influence of the radial electric field on energy deposition into thin metal wires during their electrical explosion in vacuum is presented. Explosion of the metal wire with a positive polarity when the radial electric field "pushes" electrons into the wire results in twice as much deposited energy than with the negative polarity when the radial field "expels" electrons from the wires. Moreover, the axial structure of the deposited energy changes. This effect can be explained by the influence of radial electric field on electronic emission and on vapor breakdown along the wire surface.