PHYSICAL REVIEW C, cilt.96, sa.1, 2017 (SCI-Expanded)
The β decay of 100Tc has been studied by using the total absorption γ -ray spectroscopy technique at the
Ion Guide Isotope Separator On-Line facility in Jyväskylä. In this work the new Decay Total Absorption γ -ray
Spectrometer in coincidence with a cylindrical plastic β detector has been employed. The β intensity to the ground
state obtained from the analysis is in good agreement with previous high-resolution measurements. However,
differences in the feeding to the first-excited state as well as weak feeding to a new level at high excitation energy
have been deduced from this experiment. Theoretical calculations performed in the quasiparticle random-phase
approximation framework are also reported. Comparison of these calculations with our measurement serves as a
benchmark for calculations of the double β decay of 100Mo.