ABSTRACT

With thermal neutrons, the 7Li nucleus is left in an excited state about 96% of the time. In that case, the Q value of the reaction is 2.30 MeV and the 7Li nucleus goes to the ground state by emitting a gamma with energy equal to 2.78 – 2.30 = 0.480 MeV. is photon may also be used for the detection of the neutron.