Hawk上不同等离子体源poss负载动态比较

12th International Conference on High-Power Particle Beams. BEAMS'98. Proceedings (Cat. No.98EX103) Pub Date : 1998-06-07 DOI:10.1109/BEAMS.1998.822261

B. Weber, D. Black, B. Moosman, S.J. Stephanakis, D. Hinshelwood, R. Commisso, S. Swanekamp, J. Schumer, P. Ottinger, J. Moschella, C. Vidoli

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引用次数: 6

摘要

氢等离子体打开开关(POS)在Hawk上的实验表明，在DECADE上有可能增加轫致辐射。干涉测量表明，在打开时，POS等离子体的密度在电极间区域的很大一部分(2.2 cm中的1 cm)上大大降低。氢气POS的低密度区域比之前在Hawk(和DECADE)上使用的闪络源POS大得多，并且可能导致更大的有效真空间隙，从而提高与负载的能量耦合效率。物种分离可能是造成单种和多种POSs等离子体动力学差异的原因。

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Comparison of POS-load dynamics using different plasma sources on Hawk

Hydrogen Plasma Opening Switch (POS) experiments on Hawk show potential for increasing bremsstrahlung radiation on DECADE. Interferometry indicates that the density of POS plasma is greatly reduced over a large fraction of the interelectrode region (>1 cm out of 2.2 cm) at the time of opening. This low-density region is much larger for the hydrogen POS than for flashover-source POSs used previously on Hawk (and DECADE), and may result in a significantly larger effective vacuum gap, improving the efficiency of energy coupling to loads. Species separation may be responsible for the difference in plasma dynamics between single- and multispecies POSs.

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12th International Conference on High-Power Particle Beams. BEAMS'98. Proceedings (Cat. No.98EX103)

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