Abstract
Preliminary results from beta decay studies of nuclei that are important for reactor applications are presented. The beta decays have been studied using the total absorption technique (TAS) and the pure beams provided by the JYFLTRAP system at the IGISOL facility of the University of Jyvaskyla.
Highlights
Beta decay is an important source of nuclear structure information and can be used as a tool to study fundamental interactions
The study of beta decays, is very relevant for practical and fundamental physics applications, such as the prediction of the decay heat from nuclear fuel and the prediction of the antineutrino spectrum from a working reactor [1, 2]. For these two applications it is crucial to obtain experimental data that do not suffer from the Pandemonium effect [3], a systematic error associated with the use of conventional high-resolution spectroscopy techniques
From the preliminary feeding distribution obtained in the analysis we have calculated the mean energies, which are compared in Table 1 with the valued deduced from ENSDF and with the value from a recent publication by Fijałkowska et al [23] who used the TAS technique
Summary
Beta decay is an important source of nuclear structure information and can be used as a tool to study fundamental interactions. The study of beta decays, is very relevant for practical and fundamental physics applications, such as the prediction of the decay heat from nuclear fuel and the prediction of the antineutrino spectrum from a working reactor [1, 2] For these two applications it is crucial to obtain experimental data that do not suffer from the Pandemonium effect [3], a systematic error associated with the use of conventional high-resolution spectroscopy techniques. F where d represents the measured spectrum free of contaminants, R is the response matrix of the detector, and f is the feeding distribution of the decay we wish to determine In this contribution we present preliminary results of the beta decay study of 86Br and 91Rb using the total absorption technique
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