%0 Book Section %T TAGS measurements of ¹⁰⁰Nb ground and isomeric states and 140¹⁴⁰Cs for neutrino physics with the new DTAS detector publisher E D P Sciencs %D 2017 %U 978-2-7598-9020-0 %@ https://hdl.handle.net/20.500.14352/19508 %X 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 ¹⁰⁰Nb, ¹⁰⁰Nb and ¹⁴⁰Cs are presented. %~