High precision half-life measurement of 95Ru, 95Tc and 95mTc with γ-spectroscopy

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 92 Mo ( α ,n) 95 Ru reaction was measured recently using this experimental approach. The prelim...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2020, Vol.56 (7)
Main Authors: Szegedi, T. N., Tóth, Á., Kiss, G. G., Gyürky, Gy
Format: Article
Language:English
Subjects:
Activation
Cross-sections
Hadrons
Half-life
Heavy Ions
Nuclear Fusion
Nuclear Physics
Nuclear reactions
Particle and Nuclear Physics
Physics
Physics and Astronomy
Reaction products
Regular Article - Experimental Physics
Spectrum analysis
Technetium isotopes
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Summary: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 92 Mo ( α ,n) 95 Ru reaction was measured recently using this experimental approach. The preliminary results indicated that the literature half-life of 95 Ru , derived about half a century ago, is overestimated. Therefore, the half-lives of 95 Ru and its daughter isotope 95 Tc and 95 m Tc have been measured with high precision using γ -spectroscopy. The results are t 1 / 2 = 1.6033 ± 0.0044  h for 95 Ru , t 1 / 2 = 19.258 ± 0.026  h for 95 Tc and t 1 / 2 = 61.96 ± 0.24  d for 95 m Tc . The precision of the half-life values has been increased, consequently the recently measured 92 Mo ( α ,n) 95 Ru activation cross section will become more precise.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/s10050-020-00188-8