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Elsevier, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, (741), p. 18-25, 2014

DOI: 10.1016/j.nima.2013.11.106

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Upgrade of the SPIRAL identification station for high-precision measurements of nuclear β decay

Journal article published in 2014 by G. F. Grinyer, J. C. Thomas, B. Blank, H. Bouzomita, R. A. E. Austin, G. C. Ball, F. Bucaille, P. Delahaye, P. Finlay, G. Frémont, J. Gibelin ORCID, J. Giovinazzo, J. Grinyer, T. Kurtukian-Nieto, A. T. Laffoley and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The low-energy identification station at SPIRAL (Système de Production d'Ions Radioactifs Accélérés en Ligne) has been upgraded for studying the β decays of short-lived radioactive isotopes and to perform high-precision half-life and branching-ratio measurements for superallowed Fermi and isospin T=1/2 mirror β decays. These new capabilities, combined with an existing Paul trap setup for measurements of β-ν angular-correlation coefficients, provide a powerful facility for investigating fundamental properties of the electroweak interaction through nuclear β decays. A detailed description of the design study, construction, and first results obtained from an in-beam commissioning experiment on the β+ decays 14 O and 17F is presented.