Discrete Conversion of Gamma Rays in ~(229)Th and in Highly Ionized ~(125)Te~Q Ions

摘要

The complex of problems associated with the discrete conversion of gamma rays is considered. The analogue of the internal conversion coefficient is determined for the case of discrete conversion, and specific computations are made. The calculated values of the half-life of the nuclear level E_γ = 35.492 keV in ~(125)Te~Q ions (Q = 45-48) are in good agreement with the measured quantities. Computations for the spectrum of optical photons accompanying the de-excitation of the nuclear level E_γ = 3.5 ± 1 eV in ~(229)Th, carried out using the Dirac-Fock multiple configuration method, show that the highest-intensity spectral lines are situated in the region of 2.3-2.4 eV, which is in accord with the experimental data.