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

Abstract

A laboratory measurement of the $\alpha$-decay half-life of ${}^{190}$Pt 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 $(4.97\pm 0.16)\times 10^{11}$ years, with a total uncertainty of 3.2%. This number is in good agreement with the half-life obtained using the geological comparison method.

Cited by in corpus (4)

• Nucleosynthesis and observation of the heaviest elements
• Experimental searches for rare alpha and beta decays
• Radiogenic power and geoneutrino luminosity of the Earth and other terrestrial bodies through time
• Search for rare alpha and double beta decays of Yb isotopes to excited levels of daughter nuclei