Abstract: THE PREPARATION OF 188W188Re GENERATOR FOR MEDICAL APPLICATIONSDu Jin Bai Hongsheng Jin Xiaohai Fan Hongqiang(Department of Isotopes, China Institute of Atomic Energy,P.O Box275(58),Beijing 102413)ABSTRACTA 188W188Re generator based on acidtreated alumina is prepared for medical use.188Re can be eluted into a vacuous vial by 9 g/L NaCl solution in the presence or absence of ascorbic acid. The elution yield of 188Re is more than 70% during a period of three months. The 188W breakthrough is less than 10－4%.Both the radionuclide purity and the radiochemical purity of the 188Re product solution are more than 99%.Keywords 188W 188Re Al2O3 188W188Re generator