合肥光源逐圈束流位置监测系统中的定时系统

Timing system for turn-by-turn BPM system

定时系统是合肥光源逐圈束流位置监测和相空间测量系统中的重要组成部分,其主要目的是为数据采集卡提供与环内电子束团同步的时钟信号。该系统包含高速ECL时钟成形、分频电路、程控延时电路、控制模块等部分。可实现延时范围0～220ns,最小延时步距0.5ns,调整精度0.1ns,时钟抖动小于200ps。系统控制软件基于客户/服务器结构,操作灵活、方便。

During the PhaseII project of NSRL, in order to monitor the injecting effectiveness, damping rate and Beta oscillation after update of injection and RF system, a turnbyturn system of HLS has been produced for storage ring diagnostics. Timing system is an important component of turnbyturn system. It provides synchronous clock signal with certain bunch in storage ring for data acquisition system. Programmable timedelay and remote control are available in this system. Total timedelay range of this system is 220ns, step 0.5ns. Time jitter of clock signals is less than 200ps.