β DECAYS OF 92Rb, 96gsY, AND 142Cs MEASURED WITH THE MODULAR TOTAL ABSORPTION SPECTROMETER AND THE INFLUENCE OF γ MULTIPLICITY ON TOTAL ABSORPTION SPECTROMETRY MEASUREMENTS.

Total absorption spectroscopy is a technique that helps obtain reliable β-feeding patterns of complex decays important for nuclear structure and astrophysics modeling as well as decay heat analysis in nuclear reactors. The need for improved measurements of β-feeding patterns from fission decay products has come to the forefront of experiments that use nuclear reactors as a source of antineutrinos. Here we present more detailed results, in particular the β-decay measurements of 96gsY, and demonstrate the impact of the β-delayed γ multiplicity on the overall efficiency of Modular Total Absorption Spectrometer used at Oak Ridge National Laboratory to study the decays of fission products abundant during a nuclear fuel cycle. [ABSTRACT FROM AUTHOR]