He—jet带传输及X—γ（t）符合测量装置和^153Er（EC＋β^＋）衰变新γ的测定  

A He-jet recoil tape-transport and X-γ(t) coincidence measurement system and new γ-rays from(EC+ β￣+)decay of￣(153)Er

作　　者：徐树威[1] 王以好 罗亦孝[1] 张学谦[1] 谢元祥[1] 祁文魁 潘强岩[1] 张菊萍 袁双贵[1] 徐联联 胡志强[1] 郭光辉[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《核技术》1995年第12期717-721,共5页Nuclear Techniques

基　　金：中国科学院八五重大项目资助

摘　　要：介绍了Ｈｅ—ｊｅｔ带传输及Ｘ—Υ（ｔ）符合测量装置分离鉴别重缺中于远离核的原理、速度和效率；离线测试了其最佳工作条件；利用该装置在线测量了１９５，１９６Ｂｉ、１５２，１５４Ｅｒ和１５３Ｅｒ的（ＥＣ＋β＋）衰变。６条新Υ射线被确定属于１５３Ｅｒ。A He-jet recoil tape-transport and X-Υ(t)coincidence system for separating and identifying the heavy neutyon-deficient nuclei far from the stability is described including its fundamentals, speed and efficiency.Its optimal working condition has been tested off-line.The Υ-rays from 195,196Bi and 152,153,154Er(EC+β+)decay have been measured on-line by using the system. Six new Υ-rays have been assigned to 153Er.

关 键 词：氦喷嘴带传输 X-γ符合测量 EC/β衰变 

分 类 号：TL816[核科学技术—核技术及应用]