西安200MeV质子应用装置负氢离子源及低能束流传输线实验研究  

Experimental Study on H-Ion Source and Low Energy Beam Transport Line of Xi’an 200MeV Proton Application Facility

作　　者：王百川 王忠明 刘卧龙 邢庆子 唐若[2,3,4] 李岩 马鹏飞[2,3,4] 杜畅通[2,3,4] 杨业 王敏文 王迪[1] 赵铭彤 赵晨 魏崇阳[1] 王茂成 张辉 闫逸花 吕伟 WANG Bai-chuan;WANG Zhong-ming;LIU Wo-long;XING Qing-zi;TANG Ruo;LI Yan;MA Peng-fei;DU Chang-tong;YANG Ye;WANG Min-wen;WANG Di;ZHAO Ming-tong;ZHAO Chen;WEI Chong-yang;WANG Mao-cheng;ZHANG Hui;YAN Yi-hua;LYU Wei(State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Xi’an 710024,China;Key Laboratory of Particle&Radiation Imaging,Ministry of Education,Beijing 100084,China;Laboratory for Advanced Radiation Sources and Application,Tsinghua University,Beijing 100084,China;Department of Engineering Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]强脉冲辐射环境模拟与效应国家重点实验室,西安710024 [2]粒子技术与辐射成像教育部重点实验室,北京100084 [3]清华大学先进辐射源及应用实验室,北京100084 [4]清华大学工程物理系,北京100084

出　　处：《现代应用物理》2021年第3期25-32,共8页Modern Applied Physics

基　　金：国家科技重大专项资助项目(2014ZX01022-301)。

摘　　要：对西安200 MeV质子应用装置的负氢离子源及低能束流传输线(LEBT)进行束流实验测量,实验中通过测量不同螺线管电流下的束流发射度相图分布,得到了离子源出口的Twiss参数;根据Twiss参数设计了尺寸紧凑的单螺线管LEBT进行实验,得到了离子源出口的负氢离子束流强度。提出了一种在没有Q/A分析磁铁条件下混合束中负氢离子束流强度的测量方法,该方法通过测定纯电子束和混合束在不同螺线管电流条件下的传输效率,求解得到混合束中的负氢离子束流强度。The H-ion source and the low energy beam transport line(LEBT)of Xi’an 200 MeV Proton Application Facility(XiPAF)are measured.The Twiss parameters at the outlet of the ion source are obtained by measuring the downstream phase space distributions with different solenoid current.A compact single-solenoid LEBT is designed and built according to the Twiss parameters.In this paper,a method of measuring H-ion beam current in mixed beam without Q/A selector is proposed.In this method,the H-ion beam current in mixed beam is obtained by measuring the transmission efficiencies of electron beam and mixed beam under different solenoid currents.

关 键 词：负氢离子源 低能束流传输线 XiPAF Twiss参数 传输效率 

分 类 号：TL53[核科学技术—核技术及应用]