Energy dependence of the neutron capture cross section on 70Zn near the inelastic scattering threshold
Abstract
The 70Zn(n ,γ ) 71Znm (T1 /2=3.96 h ) cross section has been measured at 0.40 ±0.15 MeV and 0.70 ±0.10 MeV using a 7Li(p,n ) 7Be neutron source. The energy of proton energy of neutron energy spectrum code was used to calculate the neutron energy spectrum, and the 197Au(n,γ ) 198Au reaction was used as monitor reaction. Detailed uncertainty analysis has been performed, and the newly measured cross sections are reported with their uncertainties and correlation coefficients. The energy dependence seen in the cross sections measured in the present work and in the previous work at higher energies has been compared with the theoretical model prediction with various level density models and γ-ray strength functions. Model code dependence of the prediction is also discussed.
- Publication:
-
Physical Review C
- Pub Date:
- June 2018
- DOI:
- 10.1103/PhysRevC.97.064617
- Bibcode:
- 2018PhRvC..97f4617P