The ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(n,${\gamma }_0$${)\mathrm{}}^{13}$C excitation function at 90° has been measured for neutron energies from 6.5 to 18.5 MeV. Whereas previous measurements disagreed at the lower energies with a direct-semidirect capture calculation based on ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(p,${\gamma }_0$${)\mathrm{}}^{13}$N data, the present results, especially when the uncertainty in absolute cross section is considered, indicate reasonable qualitative agreement with the calculation.

• Received 4 September 1986

DOI:https://doi.org/10.1103/PhysRevC.35.393