Measurement of the 23Na(n,2n)22Na Cross Section at En = 19.45 MeV and Model Calculations of Cross Sections for Neutron Induced Reactions on 23Na

The 23Na(n,2n)22Na cross section was measured at an incident energy of 19.45 MeV using the activation method. In addition, model calculations were performed aiming at reproduction of the new experimental value together with existing cross-section data for the (n,2n) reaction in the first 2.5 MeV above threshold as well as for other neutron-induced reactions on 23Na.