中能段电子束离子阱真空控制系统研制  

Development of a Vacuum Control System for Intermediate-Energy Electron Beam Ion Trap

作　　者：曾超 赵宇红[1] 张洪明 杨洋[3] 吕波 符佳 王福地 宾斌[1] 黄世涵 计华健 林子超 毛立宇 范玉 孙波 胡奎 ZENG Chao;ZHAO Yuhong;ZHANG Hongming;YANG Yang;LYU Bo;FU Jia;WANG Fudi;BIN Bin;HUANG Shihan;JI Huajian;LIN Zichao;MAO Liyu;FAN Yu;SUN Bo;HU Kui(School of Electrical Engineering,University of South China,Hengyang 421001,China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China;Institute of Modern Physics,Fudan University,Shanghai 200433,China;Science Island Branch,Graduate School of University of Science and Technology of China,Hefei 230026,China;Institute of Material Science and Information Technology,Anhui University,Hefei 230601,China)

机构地区：[1]南华大学电气工程学院,衡阳421001 [2]中国科学院合肥物质科学研究院等离子体物理研究所,合肥230031 [3]复旦大学现代物理研究所,上海200433 [4]中国科学技术大学研究生院科学岛分院,合肥230026 [5]安徽大学物质科学与信息技术研究院,合肥230601

出　　处：《真空科学与技术学报》2024年第1期20-27,共8页Chinese Journal of Vacuum Science and Technology

基　　金：中国科学院科研仪器设备研制项目(NO.YJKYYO20180013);安徽省重点研究与开发计划项目(No.202104a06020021);国家重点研发计划磁约束聚变能源研究专项项目(2019YFE03030002);国家自然科学基金项目(No.12175278);安徽省自然科学基金项目(No.1908085J01);安徽高校协同创新项目(GXXT-2021-029)。

摘　　要：电子束离子阱(Electron Beam Ion Trap,EBIT)是一种用于研究高电离态离子物理过程的实验装置。中能段紧凑型EBIT实验平台能够产生30 keV的电子束能量,电子束流达到20 mA,对于研究未来聚变堆杂质离子输运行为研究具有重要意义。为了产生单一高电荷态离子,中能段EBIT装置阱区需要工作在超高真空(10−8 Pa)环境下。低温超导磁体需工作在10^(−5)Pa真空环境下以维持超导状态,因此真空度直接影响着中能段EBIT的工作性能,有必要研制一套稳定高效的真空控制系统以提升中能段EBIT装置稳定性与可靠性。文章基于RS485总线结构和Python编程语言开发了一套中能段EBIT真空控制系统,实现了对中能段EBIT真空系统的远程控制、数据采集和系统联锁保护。可为中能段EBIT装置提供稳定可靠的超高真空的实验环境,对中能段EBIT装置的稳态运行具有重要意义。The Electron Beam Ion Trap(EBIT)is an experimental device used to study the physics of highly ionized ions.The intermediate-energy compact EBIT experimental platform can generate an electron beam energy of 30 keV with an electron beam current of up to 20 mA.It is of great importance to study the impurity spectra in future fusion reactors.To produce a single high charge state ion,the trapping area of the intermediate energy EBIT device needs to be kept under an ultra-high vacuum(10−8 Pa)condition.Besides,the low-temperature superconducting magnet also needs to operate under a vacuum environment of 10−5 Pa to maintain a sufficiently high heat resistance.Therefore,the vacuum condition directly affects the performance of the intermediate energy EBIT device.It is necessary to develop a stable and efficient vacuum control system to improve the stability and reliability of the device.In this study,an intermediate energy EBIT vacuum control system is developed on the basis of the RS485 bus structure and the Python programming language,which realizes remote control,data acquisition,and interlock protection for the EBIT vacuum system.Currently,this vacuum control system has been running reliably on the intermediate energy EBIT system for several months.The development of the vacuum control system for the EBIT can meet experimental requirements,providing a reliable ultra-high vacuum experimental environment for the intermediate energy EBIT system.This study is of great significance for the steady-state operation of the intermediate energy EBIT system.

关 键 词：电子束离子阱 真空控制系统 RS485 PYTHON 

分 类 号：TL628[核科学技术—核技术及应用]