Cross section measurements for(n,2n) reactions on neodymium isotopes at the neutron energies of 13.5, 14.1 and 14.6 MeV

The cross sections for (n,2n) reaction are measured on Neodymium isotopes at the neutron energies of 13.5-14.6 MeV using activation technique. The cross section data for the reactions of Nd-150(n,2n)Nd-149,Nd-148(n,2n)Nd-147 and Nd-142(n, 2n) Nd-141 are reported. The cross sections of Nd-150(n,2n)Nd-149 reaction are 2037 +/- 85,1737 +/- 68 and 1657 +/- 65mb at 13.5 +/- 0.2,14.1 +/- 0.1 and 14.6 +/- 0.2MeV respectively. The cross sections of Nd-148(n,2n)147Nd reaction are 1394 58,1416 54 and 1956 +/- 76mb at 13.5 +/- 0.2,14.1 +/- 0.1 and 14.6 +/- 0.2 MeV respectively. The cross sections of Nd-142(n,2n) Nd-141 reaction are 1501 +/- 59,1623 +/- 62 and 1764 +/- 111 mb at 13.5 +/- 0.2, 14.1 +/- 0.1 and 14.6 +/- 0.2 MeV respectively. The neutron fluences are determined by the cross sections of Nb-93(n,2n)Nb-92m reaction. The comparison between the present results and the previously published data is made.