Experimental study of Tc-100 beta decay with total absorption gamma-ray spectroscopy


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GUADILLA V., Algora A., TAIN J. L. , Agramunt J., JORDAN D., MONTANER-PIZA A., ...Daha Fazla

PHYSICAL REVIEW C, cilt.96, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

The beta decay of Tc-100 has been studied by using the total absorption gamma-ray spectroscopy technique at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla. In this work the new Decay Total Absorption gamma-ray Spectrometer in coincidence with a cylindrical plastic beta detector has been employed. The beta 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 beta decay of Mo-100.

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.