Abstract

Abstract A LEPS-type Ge detector was used for precision energy measurements of the 68 and 78 keV γ rays from the decay of 44 Ti, with 133 Ba and 182 Ta as reference sources. The values obtained were 67.8679(14) keV and 78.3234(10) keV. The latter value is 13.6 eV lower than a previous report and suggests that systematic effects were present in the earlier determination of the 78 keV energy. The 133 Ba 81 keV line was measured to be 80.9964(21) keV and we adopt 80.991(14) keV from the weighted average of all reported results.

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