Precise half-life measurement of the 10 h isomer in 154Tb

Details Precise half-life measurement of the 10 h isomer in 154Tb Precise half-life measurement of the 10 h isomer in 154Tb

2009-06-19

arxiv.org/abs/0906.3618v1

Nucl.Phys.A828:1-8,2009

Physics

Nuclear Physics

Nuclear Experiment

Accepted for publication in Nuclear Physics A

Scientific paper

10.1016/j.nuclphysa.2009.06.023

The precise knowledge of the half-life of the reaction product is of crucial importance for a nuclear reaction cross section measurement carried out with the activation technique. The cross section of the 151Eu(alpha,n)154Tb reaction has been measured recently using the activation method, however, the half-life of the 10 h isomer in 154Tb has a relatively high uncertainty and ambiguous values can be found in the literature. Therefore, the precise half-life of the isomeric state has been measured and found to be 9.994 h +- 0.039 h. With careful analysis of the systematic errors, the uncertainty of this half-life value has been significantly reduced.

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