Dynamical correction of neutron diffraction data for light nuclei liquids

It is necessary to correct the dynamical effect for obtaining the structure factor of liquids by the neutron diffraction method. The dynamical correction is so difficult for light nuclei that the neutron diffraction method has been prevented to be applied to various hydrogeneous liquids. The present paper describes the dynamical correction for light nuclei liquids in the case of the Time-of-Flight neutron diffraction method. The formulae of the correction consist of two separative treatments in the high and low Q regions. The former is based on the Wick's short time approximation, whilst the latter is derived by the Placzek's inverse mass expansion method. (author)