紧凑高重复频率加速器的初级能源

介绍了一种输出脉冲峰值功率在GW量级，脉宽约6 ns，重复频率1~300 Hz可调的加速器的初级能源系统的设计与实验研究。它的初级能源由商用三相电源供能，利用硅堆整流，并通过固体开关及继电器等装置控制来实现对Tesla变压器初级线圈的重复谐振充电。实验表明该装置运行稳定，通过变压器升压之后可在120 W负载端得到300 kV的重复高电压脉冲。同时，该回路还利用了晶闸管拥有的自关断特性实现了能量的回收，提高了装置的能量利用率。

Experimental investigation on parameter matching of high compression-ratio two-stage gas ejector system

A single-module two-stage ejector test facility was established to investigate the supersonic ejector performance, and hot gases with various were used as parameters first-stage and second-stage driving fluids. The investigation indicates that there is a lower limit of flux when second-stage ejector start alone, and the parameter matching range is relatively wide for the system itself, but the parameter matching range will reduce greatly for the system with load. Pressure matching is a all-important question for multi-stage ejector.