低时间晃动的重复脉冲单次化门电路

LOW TIME JITTERS GATE USED FOR SINGLING OUT ONE PULSE FROM REPETITIVE PULSES

一、前言在有些物理实验中,需要从一重复脉冲序列中取出一个脉冲以作分析、测试之用。在利用微微秒高速扫描相机(即ps相机)测量北京正负电子对撞机(BEPC)贮存环上同步辐射光脉冲的时间结构时,便遇到了这一问题。在贮存环中单束团电子作周期运动,产生周期的同步辐射光脉冲。ps相机的斜坡电压扫描速度约为1kV/ns的量级,因此相机的光输入端与扫描部分必须有很好的同步以使得每当扫描电路被触发开启时,正好有一光脉冲进入相机。

The paper describes a gate which is used for singling out one pulse from repe-titive pulses. The main features of the gate are: the height of input pulse withwidth 10ns can be as low as 0.2 V, the rising time and the height of theoutput pulse are 10ns and 20V (on a 50Ω load)respectively; the jitters of the de-lay time of output with respect to input is about 16 ps. The gate can also beused as a synchronizer when it is made to have more than one output