Towards high-precision calculation of electron capture decays

Xavier Mougeot (1)

1 LNHB - Laboratoire National Henri Becquerel

Based on previous study, the calculation of electron capture decays has been improved by considering a more accurate atomic model with precise atomic energies, and different radiative corrections have been tested. The computer code has been revised in order to greatly speed-up the calculation and has then been coupled with the BetaShape code. The influence of the nuclear component has also been explored using a simple nuclear model. All the calculations are compared with precise measurements available in the literature.

Keywords: Electron capture; Theoretical calculations; Nuclear decay data; Radionuclide metrology; metrology; ionizing radiations; atomic model

Domains: Physics [physics]; Nuclear Theory [nucl-th]; Physics [physics]; Physics [physics]; Computational Physics [physics.comp-ph]; Statistics [stat]; Methodology [stat.ME]; Statistics [stat]; Applications [stat.AP]

Xavier Mougeot. Towards high-precision calculation of electron capture decays. Applied Radiation and Isotopes, 2019, 154, pp.108884. ⟨10.1016/j.apradiso.2019.108884⟩. ⟨cea-02475843⟩