振荡直流微放电辐射的时空分布
Spatiotemporal profile of emission from oscillating dc micro discharges
摘要：
平行板氩气直流微放电中的轴向光分布表现出与大尺度放电相似的行为。在小电流Townsend模式和大电流辉光模式之间存在一个大的电流区域，在该区域中出现不同的振荡，并且动态伏安特性表现出滞后行为。在振荡期间，最大峰值强度移动到更靠近阴极，这是异常辉光区的特征，即使平均电流相当小。
英文摘要：
The axial light distributions in parallel-plate dc microdischarges in argon show similar behavior to large scale discharges. Between the low-current Townsend mode and the high current glow mode exists a large region of currents where different oscillations appear and the dynamic Volt-Ampere characteristic shows hysteresis behavior. During the oscillations the maximum peak intensity moves closer to the cathode, which is characteristic for the abnormal glow regime even though the average current is considerably smaller.
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