Abstract: NEW GAMMA RAYS FROM THE ~(189)W DECAYYANG WEIFAN;ZHAO ZHIZHENG;MOU WANTONG;LI ZONGWEI;ZHU SHAOFEI;XIE XIUJUN（Institute of Modern Physics,the Chinese Academy of Sciences,Lanzhou 730000）ABSTRACT Radioactivities of~(189)W are produced through an ~(192)Os（n，α）~（189)W reaction. The ~(nat)Os targetsare irradiated with 14MeV neutrons. Gamma ray spectroscopy from the chemically separatedtungsten sources using an HPGe detector has revealed the presence of twenty-two gamma rayswhich can be assigned to the decay of~(189)W. Eighteen of them are new gamma rays which havenever been reported before.Key words~(189)W Gamma rays Decay curve Chemical separation