摘要
正在兰州建设的低温高密度核物质测量谱仪(CSR External-target Experiment,CEE)系统进行物理实验时,需利用触发判选系统提供物理实验和各类测试条件下多种模式下的触发信号。CEE触发系统的产生时刻与同步加速器束流慢引出事例密切相关,研制的基于NI(National Instruments)sbRIO(Single-Board Reconfigurable I/O)的事例解析系统可根据粒子物理实验需求实现加速器事例解析以及输出延时可调的触发信号。上位机通过以太网监控设备并将信息下行发送到CEE触发分系统,实现基于EPICS(Experimental Physics and Industrial Control System)的参数配置与监测,并以TTL信号发送给触发系统。经过测试,系统设计满足CEE工程应用需求,该系统集成EPICS以及兼容TTL信号,可以方便地集成到大型物理控制系统中,适应更多测量环境。
During physics experiments with the Cryogenic High-density Nuclear Matter Measurement Spectrometer(CSR External-target Experiment,CEE)currently under construction in Lanzhou,a trigger selection system is required to provide multimode trigger signals under diverse experimental and testing conditions.The timing of trigger generation in the CEE system is critically dependent on events from the slow extraction of the synchrotron beam.To address this,an event parsing system based on the National Instruments(NI)Single-Board Reconfigurable I/O(sbRIO)platform has been developed.This system parses accelerator events and generates trigger signals with adjustable delays according to particle physics experiment requirements.An upper-level computer monitors the equipment via Ethernet and transmits configuration data downstream to the CEE trigger subsystem.This enables EPICS(Experimental Physics and Industrial Control System)-based parameter configuration and monitoring,with final trigger signals delivered via TTL logic.System testing verifies that the design fulfills all engineering requirements for the CEE project.The integrated EPICS compatibility and TTL signal support enable straightforward integration into large-scale physics control systems,ensuring adaptability across extensive measurement environments.
作者
李维龙
李敏
周凯
董金梅
张雨樵
毛瑞士
余玉洪
LI Weilong;LI Min;ZHOU Kai;DONG Jinmei;ZHANG Yuqiao;MAO Ruishi;YU Yuhong(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China;College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China)
出处
《原子核物理评论》
北大核心
2025年第2期265-272,共8页
Nuclear Physics Review
基金
国家自然科学基金重大仪器专项项目(11927901)。
