新重丰中子核素^(237)Th的合成与鉴别  

STUDY OF NEW HEAVY NEUTRON RICH NUCLIDE 237 Th

作　　者：张天梅[1] 李宗伟[1] 袁双贵[1] 徐树威[1] 潘强岩[1] 张学谦[1] 王以好 

机构地区：[1]中国科学院近代物理研究所

出　　处：《核化学与放射化学》1997年第3期40-43,共4页Journal of Nuclear and Radiochemistry

摘　　要：用（ｎ，２ｐ）反应和快速化学分离方法以及根据母子体衰变关系首次合成和鉴别了新重丰中子核素２３７Ｔｈ，测定其半衰期为（５．０±０．９）ｍｉｎ。提出了一个从大量铀及干扰裂变产物中分离痕量钍的快速化学分离程序，并成功地用于新重丰中子核素２３７Ｔｈ的合成和鉴别。A new heavy neutron rich isotope, 237 Th,has been synthesized and identified for the first time by the (n,2p) reaction and rapid chemical separation method according to the relation of motherdaughter decay;its half live is (5 0±0 9) min.A rapid chemical separation procedure of trace thorium has been finished from a great deal of uranium and interfere fission products,and is successfully used to the synthesis and identification of a new heavy neutron rich nuclide, 237 Th.

关 键 词：新重丰中子核素 钍237 溶剂萃取 

分 类 号：O614.42[理学—无机化学]