R&D Status of SFRFQ Accelerating System  

分离作用RFQ加速系统研究进展

作　　者：陈佳洱[1] 郭之虞[1] 陆元荣[1] 高淑丽[1] 朱昆[1] 王智[1] 颜学庆[1] 彭士香[1] 赵捷[1] 郭菊芳[1] 李纬国[1] 于茂林[1] 袁忠喜[1] 方家驯[1] 

机构地区：[1]北京大学重离子物理研究所,核物理与核技术国家重点实验室,北京100871

出　　处：《Chinese Physics C》2008年第z1期231-233,共3页中国物理C（英文版）

基　　金：国家自然科学基金(10455001;10605003)资助~~

摘　　要：A new linear accelerating structure SFRFQ was proposed to transfer the RFQ inter-vane voltage to the inter-longitudinal accelerating gap voltage so as to improve the acceleration efficiency.A SFRFQ prototype is being constructed to explore its feasibilities,which will be installed behind the 1MeV ISR RFQ and accelerates the O^+ beam from 1MeV to 1.6MeV.A high power SFRFQ model cavity was designed and tested,which has proved that an accelerating voltaire higher than 70kV could be applied.A magnetic triplet matching section was designed to realize the beam matching between 1MeV ISR RFQ and SFRFQ.The upgrading of 1MeV ISR RFQ has been carried out smoothly, and its output beam current has reached 2mA.介绍了SFRFQ加速系统的最新研究进展.为验证SFRFQ结构的抗打火性能,设计了一个高功率模型腔,进行了高功率打火实验,并最终证明了该结构的可行性.为验证SFRFQ加速器的载束性能,设计了一台长度仅为1m的600keV O^+ SFRFQ加速器,它将把从1MeV ISR RFQ引出的O^+离子加速到1.6MeV.为解决1MeV ISR RFQ引出束流与SFRFQ加速器的横向匹配问题,在其间插入了一个三单元磁四极透镜.SFRFQ加速器加工和1MeV ISR RFQ改造的进展顺利.

关 键 词：SFRFQ ISR RFQ sparking MATCHING 

分 类 号：TL506[核科学技术—核技术及应用]