Abstract

The 1.8 h 149Nd was produced when Nd 2O 3, isotopically concentrated in 148Nd, was irradiated for 2 h in Kansas State University's Triga Mark II reactor. The gamma ray spectrum was observed with a Ge(Li) detector. Gamma rays decaying with the 1.8 h half life were measured at energies of 60, 76, 97, 114, 154, 187, 197, 210, 226, 240, 267, 309, 324, 348, 423, 443, 542, 556 and 655 keV. These data, along with gamma-gamma and beta-gamma coincidence studies of earlier investigations, have been employed to prepare a level diagram for 149Pm.

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