  We present a new neutron-scattering approach to access the van Hove
distribution function directly in the time domain, I(t), which reflects the
system dynamics. Currently, I(t) is essentially determined from neutron
energy-exchange. Our method consists of the straightforward measurement of the
running time-integral of I(t), by computing the portion of scattered neutrons
corresponding to species at rest within a time t, (conceptually elastic
scattering). Previous attempts failed to recognise this connection. Starting
from a theoretical standpoint, a practical realisation is assessed via
numerical methods and an instrument simulation.
