Emission spectra of gadolinium-158.

The photon and electron spectra of 158*Gd as result of the (n, gamma)-reaction on 157Gd were calculated with IMRDEC Monte Carlo computer program. The relaxation probabilities were taken from EADL file of the Lawrence Livermore National Laboratory. Because this file does not consist of data for some N and O transitions, they were additionally determined by Chen applying the DHS j-j scheme. Two schemes are applied to calculate the energies of the transitions: (1) a simple (Z + 1)/Z scheme, and (2) accurate calculation solving the relativistic Dirac equations.