Li⁶(n,t)He⁴ REACTION AT INTERMEDIATE ENERGIES

The Li/sup 6/(n,t)He4 reaction cross section was measured in a neutron energy interval extending from 9 to 340 kev. The cross section descends from 1.77 barns at 9 kev to a minimum of 0.74 barns at 100 kev before rising to a peak resonance value of 2.75 barns at 258 kev. The cross section from 9 to 90 kev is not proportional to E -1/2, can be represented by sigma = 3.96E/sup -0.367/ with sigma in barns and the neutron energy E in kev. Angular distribution of the tritons are presented for neutron energies of 150. 200. 258. 300. 350. and 565 kev. These distributions, measured in a relative manner, are placed on an absolute scale by normalizing to the cross section data of this experiment. extended to 565 kev by use of previously measured cross sections. (auth)