Towards a re-determination of the 42Ar half-life

We report on a new measurement of the half-life of 42 Ar by following its decay over a time period of more than 13 years using γ-ray spectrometry. The obtained value of (39.5 ± 3.6) y confirms the only other, previously measured value of (33 ± 2) y. However, since partial outgassing of the accumulat...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2024-07, Vol.333 (7), p.3615-3620
Main Authors: Schumann, D., Maugeri, E., Dai, Y., Dressler, R., Köster, U.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Half-life
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Outgassing
Physical Chemistry
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Summary:We report on a new measurement of the half-life of 42 Ar by following its decay over a time period of more than 13 years using γ-ray spectrometry. The obtained value of (39.5 ± 3.6) y confirms the only other, previously measured value of (33 ± 2) y. However, since partial outgassing of the accumulated Ar from the sample cannot be excluded, this value should be understood as a lower limit. The sample has now been stored in a gas-tight quartz ampoule to enable further measurements excluding the outgas effect in order to confirm our finding.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09308-2