The resolution function for a pulsed-source TOF neutron spectrometer

The matrix procedure to compute the resolution function for a given experimental configuration is briefly given followed by its application to a particular one, a pulsed source TOF neutron spectrometer. All the corresponding relevant configurations are considered. For crystal and polycrystalline filter as monochromator both the direct and the inverse geometry are considered. As for the matrix procedure a normal 486 PC is quite suited with computing times of 1–2 s in comparison with the Monte Carlo computing technique for which special computer configurations are needed; the matrix procedure should be preferred when the normal approximation is still valid and if a precise description of the line profile is not required.