Toward ultracompact pseudospark switches
Toward ultracompact pseudospark switches
复制标题
迈向超紧凑赝火花开关
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
M. Gundersen
中科院分区：
文献类型：
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作者：
C. Jiang;A. Kuthi;M. Gundersen
这封信报告了小型伪火花开关的研究，其中体积相对于先前报道的最小版本减少了一个数量级，工作时的峰值电流为bbb1ka。在初步测试中，开关保持>20kV，峰值电流>4ka，脉冲持续时间150ns。该开关在光触发模式（背光闸管）下工作，氦气填充，在13.5 kV和3.3 kA下进行>106放电，每脉冲0.5 mC转移，重复率为10 Hz，开关性能没有明显衰减。初步观察表明，该器件在超发射阴极模式下工作，展示了用于重复脉冲功率应用的超紧凑超发射阴极开关的途径。
This letter reports studies of small pseudospark switches wherein the volume is reduced by one order of magnitude relative to the smallest previously reported versions operating with a peak current >1kA. In preliminary testing, the switch holds off >20kV with a peak current >4kA and a pulse duration of 150 ns. The switch was operated in an optically triggered mode (backlighted thyratron) with helium fill for >106 discharges at 13.5 kV and 3.3 kA, with 0.5 mC transfer per pulse, at a repetition rate of 10 Hz without significant decay of switch performance. Preliminary observations indicate that the device operates in a superemissive cathode mode, demonstrating a pathway towards ultracompact superemissive cathode switches for repetitive pulsed power applications.