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Elsevier, Nuclear Physics A, 1-2(828), p. 1-8

DOI: 10.1016/j.nuclphysa.2009.06.023

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

Journal article published in 2009 by G.-Y. Gyürky, G. Rastrepina, Z. Elekes ORCID, J. Farkas, Z.-S. Fülöp, G. G. Kiss, E. Somorjai, T. Szücs
This paper is available in a repository.
This paper is available in a repository.

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Abstract

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. Comment: Accepted for publication in Nuclear Physics A