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利用６０ＭｅＶ／ｕ的(１８)Ｏ离子束轰击天然铀靶，通过多核子转移反应生成重丰中子新核素(２３８)Ｔｈ．观测到了(２３８)Ｔｈ的子体(２３８)Ｐａγ活性的生长、衰变行为，鉴别了(２３８)Ｔｈ的存在，并测得它的半衰期为（９．４±２．０）ｍｉｎ．同时，发现了一条能量为（８９．０±０．３）ｋｅＶ、半衰期为（８．９±１．５）ｍｉｎ的新γ射线，指定为(２３８)Ｔｈ的衰变γ射线．
The natural uranium target was bombarded with a (18) O ion beam of 60 MeV / u to generate a heavy heavy neutron neutron (238) Th through a multi-nuclear transfer reaction. The growth and decay behavior of Pay activity of (238) Th progeny (238) was observed and the presence of (238) Th was identified and its half-life was measured as (9.4 ± 2.0) min. At the same time, a new gamma ray with a energy of (89.0 ± 0.3) keV and a half-life of (8.9 ± 1.5) min was found, which was designated as the decay γ-ray of (238) Th.