6Li fast neutron spectrometer with account for resolution function

A possibility has been studied of applying a mathematical consideration of the resolution function of a fast neutron spectrometer on the basis of the Li6(n, α)H3 reaction with the use of semiconductor detectors, so as to obtain a satisfactory resolution without decreasing the spectrometer efficiency. It is shown that the use of the least directed discrepancy permitted to account for the spectrometer resolution function and to obtain the neutron spectra sufficiently close to the real ones. In particular, one managed to resolve two closely located groups of neutrons blending in the apparatus spectrum, to determine in the apparatus spectrum, to determine rather a weak peak (3%) against the background of the intense main group of neutrons, and also to thoroughly analyze the nature of the scattered neutron background. It is noticed, that in all the spectra processed the scattered neutron background is of a wave-like nature expecially well exhibited in the vicinity of the main peak