Determination of ¹⁴N(n, 2n)¹³N Reaction Cross Section for 14.7 MeV Neutrons

抄録

The cross section for the ¹⁴N(n, 2n)¹³N reaction in respect of 14.7 MeV neutrons has been determined. In this experiment, the ²⁷Al(n, p)²⁷Mg reaction was selected as reference standard, for its generation of the nuclide 27Mg which has a half-life very close to that of ¹³N. The full-energy peaks of the γ-ray spectrum obtained by multi-channel pulse height spectrometer was analyzed with γ-ray energy resolution determined by means of normal probability plots.
The resulting value for the cross section is 8.2±1.1 mb, which is in remarkably good agree-ment with the value reported in literature.