Neutron capture cross sections of 148Gd and the decay of 149Gd

The thermal cross section and resonance integral were measured for radiative neutron capture by radioactive 148Gd. The deduced values are σ=9600±900 b and I=28,200±2300. We also deduced upper limits for the n,p and n, α cross sections, respectively, 0.25 b and 13 b. The γ-ray spectrum from the decay of 149Gd was studied in singles mode at high resolution to verify the previously determined energies and intensities. From the latter measurements, new transitions are proposed and upper limits are deduced for previously reported transitions