High Precision Measurement of the ${}^{19}$Ne Half-life using real-time digital acquisition

Abstract

The half-life of ${}^{19}$Ne has been measured using a real-time digital multiparametric acquisition system providing an accurate time-stamp and relevant information on the detectors signals for each decay event. An exhaustive offline analysis of the data gave unique access to experimental effects potentially biasing the measurement. After establishing the influence factors impacting the measurement such as after-pulses, pile-up, gain and base line fluctuations, their effects were accurately estimated and the event selection optimized. The resulting half-life, $17.2569\pm 0.0019_{(stat)}\pm 0.0009_{(syst)}$~s, is the most precise up to now for ${}^{19}$Ne. It is found in agreement with two recent precise measurements and not consistent with the most recent one [L.J. Broussard {\it et al.}, Phys. Rev. Lett. {\bf112}, 212301 (2014)] by 3.0 standard deviations. The full potential of the technique for nuclei with half-lives of a few seconds is discussed.

arXiv comment11 pages, 16 figures

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Cited by in corpus (4)

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• Precise branching ratio measurements in ${}^{19}$Ne beta decay and fundamental tests of the weak interaction
• Study of radioactivity built-up and decay with singles time-stamped data