摘要
The beam lifetime is an important parameter and it can affect the operation of the storage ring.By using the beam loss monitoring system,it can provide some explanation for the beam loss,to Optimize the machine parameters and to further increase the beam lifetime.In this article,a beam loss detecting system for BEPCⅡis introduced.The system is composed of the front-end electronics,the CAN bus and DAQ.Finally,the first application of the beam loss detection system for BEPCⅡis presented too.
束流寿命是衡量储存环性能的重要参数,它直接影响到储存环能否正常运行.采用束流损失探测系统通过探测束流损失的地点,可以为分析束损原因、优化机器参数和提高束流寿命提供依据.介绍了北京正负电子对撞机重大改造工程(BEPCⅡ)束流损失探测系统的基本情况:前端束流损失探测器输出的脉冲信号送到下位机进行处理,通过CAN总线将所有的下位机连接到位于本地站的前端PC机,此PC机再通过以太网与中控室的PC机或工作站进行数据通讯,最终实现对束流损失的实时监测、数据存储,并能对历史数据进行处理,达到实时显示全环束损分布的目的.文章最后还简要介绍了整个系统在BEPCⅡ调束过程中的初步应用.
