12C(n, n), (n, n') and (n, n') 3a reactions at 14.1 MeV

The 12C(n, n), (n, n') and (n, n') 3 α reactions have been studied at 14.1 MeV by a time-of-flight method, with a scintillating scatterer. The angular distributions and integrated cross sections were obtained for the following channels: Q = 0 (0+) and -4.43 MeV (2+) for angles greater than 50°; Q = -7,66 MeV (0+) (8.5 ±2 mb), - 9.63 MeV (3-) (62.5 ±5 mb), - 10.1 MeV (0+ or 2+) (maximum 55 mb) and - 10.84 MeV (1-) (13-17 mb) over the whole angular range; -11.82 MeV (2-) (3-7 mb) for angles smaller than 60°. At low scattered neutron energies a continuum was observed for which the cross section ( ≈ 100 mb, including the scattering to the broad level at 10,1 MeV) and the angular distribution were determined.