强激光与粒子束, 2019, 31 (12): 125103, 网络出版: 2020-03-30   

基于EPICS的CSRe束流诊断控制系统升级

Upgrade of CSRe beam diagnostic control system based on EPICS
作者单位
1 中国科学院 近代物理研究所,兰州 730000
2 兰州科近泰基新技术有限责任公司,兰州 730000
3 中国科学院 近代物理研究所,兰州 730000;中国科学院大学,北京 100049
摘要
兰州重离子加速器(HIRFL)冷却存储环的实验环(CSRe)提供高品质的束流用于高精度的质量测量、原子物理等实验研究,实现束流参数的准确测量是进行物理实验的前提保障。目前,CSRe加速器控制系统已升级为EPICS架构。介绍了基于EPICS的束流诊断控制系统现状,并利用升级后的控制系统测量了束流相关参数。其中,束流位置系统能够测量注入束流的逐圈位置信息,测量结果发现束流在注入过程中存在一定程度的震荡,影响注入效率。流强测量系统通过高分辨的数据采集卡实现对DCCT信号的精确测量,同时增加了D事例触发功能。升级后的控制系统,可以实现束流参数的测量,并集成于加速器控制系统的EPICS CSS界面。
Abstract
The experimental Cooling Storage Ring (CSRe) of the Heavy Ion Research Facility in Lanzhou (HIRFL) provides high-quality beam for high-precision mass measurement, atomic physics and other experimental studies. Consequently, accurate measurement of beam parameters is the prerequisite for physical experiments. At present, the control system of CSRe has been upgraded to the EPICS architecture. This paper introduces the current status of the beam diagnostics control system based on EPICS which is affiliated with the accelerator control system. Moreover, some of the beam parameters are measured and analyzed by the upgraded beam diagnostics control system. According to the test results with beam at CSRe, the beam position control system can measure the turn-by-turn position of the injected beam. Furthermore, the calculated turn-by-turn position results show that there is a certain degree of oscillation during the injection process, which affects the injection efficiency directly. The beam current measurement system can achieve precise measurement with DCCT by upgrading a high-resolution data acquisition card, in addition, the D event trigger has been integrated into the beam current control system for receiving the trigger and synchronized information from the virtual accelerator. The upgraded control system is running stably and can measure the beam parameters since the upgrade in 2018 and has been integrated into the graphical user interface (GUI) of the accelerator control system.

李敏, 聂勇敢, 李生鹏, 李维龙, 董金梅, 陈玉聪, 赵铁城, 毛瑞士, 徐治国, 康新才, 冯永春, 赵祖龙, 王延谋, 马维年, 尹炎. 基于EPICS的CSRe束流诊断控制系统升级[J]. 强激光与粒子束, 2019, 31(12): 125103. Min Li, Yonggan Nie, Shengpeng Li, Weilong Li, Jinmei Dong, Yucong Chen, Tiecheng Zhao, Ruishi Mao, Zhiguo Xu, Xincai Kang, Yongchun Feng, Zulong Zhao, Yanmou Wang, Weinian Ma, Yan Yin. Upgrade of CSRe beam diagnostic control system based on EPICS[J]. High Power Laser and Particle Beams, 2019, 31(12): 125103.

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