Recoil Coincidence-Absorption Measurement of Neutron Spectra from the ReactionsA40(d,n)andN15(d,n)

A counter method offering a more convenient and flexible measurement of neutron energy in the medium to high energy range is further described. Experimental results obtained by the application of this method to the reactions ${\mathrm{A}}^{40}\mathrm{}(d,n)\mathrm{}$ and ${\mathrm{N}}^{15}\mathrm{}(d,n)\mathrm{}$ are given.