Cross section measurements for 141Pr(n,γ)142Pr reaction at neutron energies from 13.5 to 14.8 MeV

Activation cross-sections were measured for the Pr-141(n,gamma)Pr-142 reaction at three different neutron energies from 13.5 to 14.8 MeV. The fast neutrons were produced via the H-3(d,n)He-4 reaction on Pd-300 neutron generator. The natural high-purity Pr2O3 powder was used as target material. Induced gamma activities were measured by a high-resolution gamma-ray spectrometer with high-purity germanium detector. Measurements were corrected for gamma-ray attenuations, random coincidence (pile-up), dead time and fluctuation of neutron flux. The neutron fluences were determined by the cross section of Al-27(n,alpha)Na-24 reaction. The neutron energy in the measurement were by the cross section ratios of Zr-90(n,2n)Zr89m+g and Nb-93(n,2n)Nb-92m reactions. The data for Pr-141(n,gamma)Pr-142 reaction cross sections are reported to be 3.3 +/- A 0.2, 2.7 +/- A 0.2 and 2.2 +/- A 0.2 mb at 13.5 +/- A 0.2, 14.1 +/- A 0.2, and 14.8 +/- A 0.2 MeV incident neutron energies, respectively. Results were discussed and compared with some corresponding values found in the literature.