CPHS中强流质子源与低能传输线研制  

Development of Intense Proton Source and LEBT System in Compact Pulsed Hadron Source

作　　者：武启[1] 张文慧[1] 杨尧[1] 马鸿义 曹云[1] 钱程[1] 马保华[1] 王辉[1] 李锡霞[1] 孙良亭[1] 张雪珍[1] 张子民[1] 赵红卫[1] 

机构地区：[1]中国科学院近代物理研究所,甘肃兰州730000

出　　处：《原子能科学技术》2015年第B10期518-522,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10921504;91126004)

摘　　要：清华大学为微型脉冲强子源加速器注入研制了一套2.45GHz ECR强流脉冲质子源和低能传输线(LEBT)系统。质子源采用四电极系统引出能量达50keV/75mA的混合束,经低能传输段实现匹配注入RFQ加速器。在LEBT出口处获得了高达50keV/60mA的质子束,使用Allison发射度探测器在第2诊断室测得均方根归一化发射度小于0.2πmm·mrad。本文介绍强流质子源与低能传输段的调试结果,并对束流品质进行了研究。A 2.45 GHz intense pulsed ECR proton source and low energy beam trans- port （LEBT） system was developed by Tsinghua University for the compact pulsed had- ron source （CPHS）. The proton injector provides proton beam into a 3.2 MeV RFQ accelerator. The 50 keV/75 mA hybrid beam extracted by a 4-electrode extraction sys- tem from the ion source passes through the LEBT to the RFQ entrance and the root- mean-square （RMS） normalized emittance is less than 0.2 πmm·mrad. The commissio- ning results of the intense proton source and low energy beam transport system were described in this paper. The beam quality was also studied.

关 键 词：微型脉冲强子源 质子源 低能传输线 强流脉冲束 归一化发射度 

分 类 号：TL501.5[核科学技术—核技术及应用]