Use of a total absorption gamma-ray spectrometer to measure ground-state β−-branching intensities

Total absorption γ -ray spectroscopy of the β -delayed neutron emitters I137 and Guadilla1, Taín2, Algora3 et al. 2019Phys. Rev. C114110View full textAdd to dashboardCite

“…In the analysis with a 20-ns window, an intensity of 47.4% was obtained, while the analysis of the background subtracted singles spectrum gives a value of 49.9%. This intensity was also calculated by means of a β-γ counting method for TAGS data proposed by Greenwood et al [65], and we obtained a similar value of 51.2(6)%. These two values are larger than the quoted number in ENSDF: 45.2(5)%.…”

Experimental study of Tc100 β decay with total absorption γ -ray spectroscopy

“…[17] gives 93.3(2)%. Furthermore, we have also calculated the ground-state feeding by applying a β−γ counting method for TAGS data proposed by Greenwood et al [56]. Our preliminary calculation with this method gives a value of 92.8(5)%, closer to the value from highresolution measurements.…”

Sensitivity Studies for the Decay Heat Calculation for $^{235}$U

“…Four main contributors are: 145 La (0.9% of total DH), 144 Ba (0.6% of total DH), 103 Nb (0.6% of total DH) and 86 As (0.4% of total DH). It is worth pointing out that there are three papers published in the nineties by Greenwood et al [8][9][10], reporting TAS measurements of β decay of many nuclides important for DH calculations, including 145 La and 144 Ba. However, these measurements were not approved by evaluators of the ENDF database and, therefore, theoretical calculations are used in the decay databases.…”