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利用１７１ＭｅＶ(３２)Ｓ束轰击(９２)Ｍｏ靶，熔合蒸发（２ｎ２ｐ）反应合成了(１２０)Ｂａ核．由氦喷嘴反冲快速带传输系统将反应产物送到低本底区．位于带子两侧的两个平面型高纯锗探测器对反应产物进行了符合测量．经离线数据分析，对早先发表的(１２０)Ｂａ衰变γ射线予以确认，并补充了１９条强度较弱、能量较低的γ射线．建议了(１２０)Ｂａ的衰变纲图共包括３５条γ射线和２５条能级．
The (120) Ba core was synthesized by 171MeV (32) S beam bombardment (92) Mo target and fusion evaporation (2n2p) reaction. The reaction product was sent to the low background zone by a helium nozzle recoil rapid belt transfer system. The reaction products were measured in accordance with two planar high-purity germanium detectors on both sides of the tape. Off-line data analysis was performed to confirm the previously published (120) Ba decay gamma rays and to supplement 19 weaker and less energetic gamma rays. It is suggested that (120) Ba’s decay scheme consists of 35 gamma rays and 25 energy levels.