A new precision measurement of the α-decay half-life of 190Pt

Mihály Braun; Yordan M. Georgiev; Tommy Schönherr; Heinrich Wilsenach; Kai Zuber

doi:10.1016/j.physletb.2017.02.052

Physics Letters B (May 2017)

A new precision measurement of the α-decay half-life of 190Pt

Mihály Braun,
Yordan M. Georgiev,
Tommy Schönherr,
Heinrich Wilsenach,
Kai Zuber

Affiliations

Mihály Braun: Institute for Nuclear Research of the Hungarian Academy of Sciences, Bem tér 18, Debrecen, 4026 Hungary
Yordan M. Georgiev: Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
Tommy Schönherr: Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
Heinrich Wilsenach: Institut für Kern- und Teilchenphysik, Technische Universität Dresden, 01069 Dresden, Germany
Kai Zuber: Institut für Kern- und Teilchenphysik, Technische Universität Dresden, 01069 Dresden, Germany

DOI: https://doi.org/10.1016/j.physletb.2017.02.052
Journal volume & issue: Vol. 768, no. C
pp. 317 – 320

Abstract

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A laboratory measurement of the α-decay half-life of 190Pt has been performed using a low background Frisch grid ionisation chamber. A total amount of 216.60(17) mg of natural platinum has been measured for 75.9 days. The resulting half-life is (4.97±0.16)×1011 years, with a total uncertainty of 3.2%. This number is in good agreement with the half-life obtained using the geological comparison method.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: https://www.sciencedirect.com/journal/physics-letters-b

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