Against the problem that amplitude of pre?pulse current is too high and duration is too short in the capillary discharge pumped X?ray laser device, a complete remaking scheme was brought forward.

• 针对目前毛细管放电X光激光装置产生的预脉冲电流幅值过大、持续时间较短的问题,提出了增加预脉冲开关抑制原有预脉冲,再外加由脉冲成形网络组成的预脉冲发生器,产生所需预脉冲的改造方案。