TRITON AND ALPHA-PARTICLE PRODUCTION IN NEUTRON-INDUCED REACTIONS ON CARBON AT E(N)=42.5-MEV, 62.7-MEV, AND 72.8-MEV

Double-differential cross sections for fast neutron-induced triton and alpha-particle production on carbon are reported at three incident ne utron energies: 42.5, 62.7, and 72.8 MeV, complementing our previous r esults for proton and deuteron emissions. Angular distributions were m easured at laboratory angles between 20 degrees and 160 degrees in ste ps of 10 degrees. Procedures for data taking and data reduction are de scribed. Results for double-differential, energy-differential, and tot al cross sections are presented. The measurements are compared to exis ting data and to nuclear model calculations which include preequilibri um and equilibrium decay mechanisms.