基于EPICS的CSNS束流位置读出系统  

CSNS Beam Position Readout System Based on EPICS

作　　者：潘薇[1,2] 徐韬光[1] 李鹏[1] 孙纪磊[1] 李芳[1] 曾磊[1] 王标[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院研究生院,北京100049

出　　处：《核电子学与探测技术》2012年第9期999-1002,共4页Nuclear Electronics & Detection Technology

基　　金："973计划"(2007CB209904)支持

摘　　要：从973-RFQ束流传输线上束流位置(BPM)测试需求出发,开发了一套完整的束流位置读出系统,其将移植到CSNS工程的束流位置测量系统中。该系统由信号采集、处理和显示模块组成。BPM读出系统采用EPICS作为软件开发平台,并选用Motorola公司的MVME5100作为IOC;硬件采用Hytec公司的ADC8411U卡实现对束流位置信号100 kHz的同步触发采样。信号处理模块对采集到的信号进行数值平均滤波,并实现到束流位置的转换。信号显示模块选用EPICS客户端软件EDM实现对束流位置信息2种不同方式的显示。经测试,整个系统最终读出的束流位置分辨率远好于0.2 mm,符合设计要求。A complete set of beam position readout system is developed, in the need of 973 - RFQ beam - halo line＇ s beam testing This system will be transplanted to CSNS project. The system is composed of signal acquisition, processing and display module. In the signal acquisition module, EPICS was used as its software development platform, and MVME5100 was selected as an IOC; VME bus architecture was choose as its hardware platform, with Hytee Company＇s ADC8411U card for synchronous trigger sampling, in the frequency of 100 kHz. In the signal processing module, a numerical filtering algorithm was used, and beam position signal was transformed to beam position. EDM software is selected as signal display module to display beam position infor- mation in two different ways. By test, the resolution of the whole BPM readout system exceeds the demand of the BPM.

关 键 词：束流位置信号 实验物理和工业控制系统 同步触发采样 扩展显示管理器 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]