  Muon beams of low emittance provide the basis for the intense, well
characterised neutrino beams of a neutrino factory and for multi-TeV
lepton-antilepton collisions at a muon collider. The international Muon
Ionization Cooling Experiment (MICE) will demonstrate ionization cooling, the
technique by which it is proposed to reduce the phase-space volume occupied by
the muon beam. MICE was constructed in a series of steps. Data were taken in
2016 and 2017 in the Step~IV configuration which was optimised for studying the
properties of liquid hydrogen and lithium hydride. Preliminary results from
ongoing analyses will be described.
