Neutron yields and energy spectra from the thick target Li(p,n) source

Angle-dependent spectra of neutrons, emitted by a thick lithium target when bombarded with protons in the energy range 1.881 to 3 MeV, have been evaluated from experimental and theoretical values of the angular distribution of neutrons emitted in the 7Li(p, n)7Be reaction. The variation of d2N/dEsub(n)dΩ with proton energy at different angles of emission, and with angle of emission for different neutron energies, is presented for the ground and excited state reactions. The angle-integrated neutron spectrum is given for different incidence proton energies. (author)