Study of the double beta decays of 96Ru and 104Ru

Erica Andreotti; Mikael Hult; Gerd Marissens; Raquel González de Orduña; Peter Vermaercke

doi:10.1016/j.apradiso.2012.02.042

Study of the double beta decays of 96Ru and 104Ru

Appl Radiat Isot. 2012 Sep;70(9):1985-9. doi: 10.1016/j.apradiso.2012.02.042. Epub 2012 Feb 25.

Authors

Erica Andreotti¹, Mikael Hult, Gerd Marissens, Raquel González de Orduña, Peter Vermaercke

Affiliation

¹ European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel, Belgium. [email protected]

PMID: 22387022
DOI: 10.1016/j.apradiso.2012.02.042

Abstract

In this work we present new improved experimental limits for the partial half-lives of the double beta processes of (96)Ru and (104)Ru, obtained by means of a γ-ray spectrometry measurement. A disc of metallic Ru of natural isotopic abundance was sandwiched between two HPGe-detectors in the 225 m deep underground laboratory HADES. After 108 days of measurement, the lower bounds for the partial half-lives were up to 6.9×10(19) yr for (96)Ru and 1.9×10(20) yr for (104)Ru.

MeSH terms

Beta Particles
Equipment Design
Equipment Failure Analysis
Half-Life
Isotopes / analysis
Isotopes / chemistry
Radiation Dosage
Radiometry / instrumentation*
Ruthenium / analysis*
Ruthenium / chemistry*
Semiconductors*
Spectrometry, Gamma / instrumentation*
Spectrometry, Gamma / methods

Substances

Isotopes
Ruthenium