Neutron-diffraction determination of the microscopic structure of liquid deuterium

The structure factor of liquid deuterium has been measured at five points close to the triple point using time-of-flight neutron diffraction. The experiment was performed partially on the 20.7-K isotherm and partially on the 25.44-${\mathrm{nm}}^{\mathrm{-}3}$ isochore so that both the density derivative at constant temperature and the temperature derivative at constant density of the structure factor could be evaluated.