Recovery characteristics of hydrogen spare gap switches
Recovery characteristics of hydrogen spare gap switches
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DOI：
10.1109/ppc.1993.513377
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发表时间：
1993-06
期刊：
影响因子：
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通讯作者：
M. Grothaus;S. Moran;L. W. Hardesty
中科院分区：
文献类型：
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作者：
M. Grothaus;S. Moran;L. W. Hardesty
摘要：许多应用和实验室规模的实验都使用气体火花隙开关，因为它们具有高功率处理能力和简单性。然而，当需要高于几百赫兹的重复率时，高重复率的同时要求传统上排除了它们的使用。使用氢气以及在欠压模式下操作触发气体开关可以使恢复时间短至 100 微秒。作为开发用于再循环加速器的高重复频率开关计划的一部分，进行了一系列实验以确定高压氢开关在各种脉冲条件下的恢复特性。研究发现，在低放电能量和小间隙间距下获得的氢气恢复曲线可以合理地预测能量高达 12 kJ、电流达到 170 kA、电压达到 500 kV 以及间隙间距达到 3 cm 时的预期恢复。突发模式测量表明，抖动可以限制在几纳秒内，并且突发中的多个脉冲不会显着降低恢复能力。将介绍这些实验的细节。
Abstract : Many applications and laboratory-scale experiments make use of gas spark-gap switches because of their high power handling capability and simplicity. A simultaneous requirement of high repetition-rate, however, has traditionally excluded their use when repetition-rates above a few hundred hertz are necessary. The use of hydrogen, as well as operating a triggered gas switch in an undervolted mode, can result in recovery times as short as 100 microsecond. As part of a program to develop high repetitionrate switches for recirculating accelerators, a series of experiments have been performed to determine the recovery characteristics of high-pressure hydrogen switches under a variety of pulse conditions. The recovery curve for hydrogen obtained at low discharge energies and small gap spacings was found to be reasonably predictive of the recovery one could expect for energies up to 12 kJ, for currents to 170 kA, for voltages to 500 kV, and for gap spacings to 3 cm. Burst-mode measurements indicate that jitter can be limited to a few nanoseconds and that multiple pulses in a burst do not significantly degrade recovery. Details of these experiments will be presented.