TAGS measurements of ¹⁰⁰Nb ground and isomeric states and ¹⁴⁰Cs for neutrino physics with the new DTAS detector

Abstract

Abstract. In this work we report on total absorption γ -ray spectroscopy measurements of the β decay of fission products that are important contributors to the antineutrino spectrum. The experiment was performed at IGISOL as a part of a campaign of measurements with the new DTAS spectrometer. Preliminary results of the analysis of the β decay of 100 Nb, 100m Nb and 140 Cs are presented.