Radiochemical separation of thorium from ¹⁸O induced reaction with natural uranium

Radiochemical separation of thorium from 18 O induced reaction with natural uranium 1 first-author 1 1 1 1 1 1 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 A radiochemical procedure used to separate and purify trace concentration thorium produced in heavy ion reaction with uranium targets is presented. The procedure can rapidly yield thorium fraction suitable for gamma-ray spectroscopy studies. The resultant gamma-ray spectra showed that Th was isolated from a large number of elements produced in the reaction, and there were only a few contaminating activities of isotopes of Sc, Cd, In, etc. The decontamination factors for the main reaction products are given. Radiochemical separation Gamma-ray spectra Decontamination factors References McGaughey P L , Loveland W et al . Phys Rev C , 1985 , 31 ( 3 ): 896 ~ 909 Phys Rev C Klapdor H V et al . At Data Nucl Data Tables , 1984 , 31 : 81 At Data Nucl Data Tables Yang W F , Mou W T et al . Chin J Nucl Sci Engin (in Chinese) , 1998 , 18 ( 3 ): 269 ~ 274 Chin J Nucl Sci Engin (in Chinese) Zhang T M , Li Z W et al . J Nucl Radiochem , 1997 , 19 ( 3 ): 40 ~ 43 J Nucl Radiochem Du Y F , IMP Annual Report , 1990 , 123 IMP Annual Report O674.233 + , O571.41 + 3 Supported by the National Natural Science Foundation of China (No.199750055), and by the Chinese Academy of Sciences 2000-10-03 2001-05-01 2021-02-05 2001 Nuclear Science and Techniques 2 12