BRISOL铝同位素放射性核束的产生  

Production of Ion Beams of Radioactive Aluminum Isotopes at BRISOL Facility

作　　者：马燮[1] 崔保群[1] 唐兵[1] 马瑞刚[1] 陈立华[1] 马鹰俊[1] 黄青华[1] 张一帆 王云峰 燕冲 于荣凯 MA Xie;CUI Baoqun;TANG Bing;MA Ruigang;CHEN Lihua;MA Yingjun;HUANG Qinghua;ZHANG Yifan;WANG Yunfeng;YAN Chong;YU Rongkai(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《原子核物理评论》2022年第2期201-205,共5页Nuclear Physics Review

基　　金：中核集团集中研发项目(FA 18000201);中核集团公司领创科研项目资助。

摘　　要：北京放射性核束装置在线同位素分离器(BRISOL)采用100 MeV回旋加速器提供的最大200μA的质子束打靶在线产生放射性核束。在BRISOL上已经使用氧化钙靶、氧化镁靶产生了Na^(+)、K^(+)等放射性核束。为了产生铝同位素放射性核束,研发了碳化硅靶材,开展了碳化硅靶产生铝放射性核束的实验研究。在BRISOL装置上首次产生了铝同位素放射性核束,其中^(26g)Al^(+)的束流强度为8.7×10^(7) pps,^(23)Al^(+)的束流强度为2.2×10^(2) pps,同时将BRISOL靶能承受的质子束流强提升至15。Isotope separator on-line of Beijing radioactive ion-beam facility(BRISOL) produces medium and short-lived radioactive isotope beams by irradiating targets with a maxium 200 μA proton beam from a 100 MeV cyclotron.Na and K radioactive ion beams(RIBs) have been generated with CaO and MgO targets at BRISOL.Recentely Al RIB is produced with a SiC target,the beam intensity of ^(26g)Al^(+) and ^(23)Al^(+) is 8.7×10~7 pps and 2.2×10~2 pps respectively.The SiC target can endure 15μA proton beam.In this paper,the development of SiC targets and the results of AL RIB on-line production are presented.

关 键 词：放射性核束 碳化硅靶 在线同位素分离器 铝放射性核束 

分 类 号：TL503.6[核科学技术—核技术及应用]