b'specimens were ~284 ppm, withactinide materials, where specific negligible amounts of hydrogen andheat capacities are intrinsically low. nitrogen present. Nevertheless, there are feasible Preliminary thermophysicalengineering solutions that will be characterization of MiniFuel samplesexplored to improve the reliability has highlighted the challengesof DSC measurements on MiniFuel associated with measuring specificspecimens. Inherent difficulties are heat capacity and thermal diffusivitiesalso encountered in thermal diffusivity at the miniature scale. Heat capacitymeasurements that stem from the measurements on MiniFuel U 3 Si 2 ,instrumental limit of a ~3 ms laser copper, 304 and Inconel 600 samplespulse in the LFA system at LANL. show deviations from referenceHowever, a new LFA apparatus is being data and is attributed to low sampleacquired that will be capable of pulses masses that result in a reduced DSCfaster than the diffusion of heat in a signal to noise ratio. This challengethin MiniFuel specimen.becomes more acute for heavier 2019|AFC ACCOMPLISHMENTS 73'