A Monte Carlo technique was developed for predicting the mode of energy transfer from fission fragments liberated within spherical solids to the fluid or neighboring particles in a slurry. Random location energy liberation for a large number of fissions within the solids and subsequent absorption was followed by means of a high-speed digital computer program. The fraction of recoil fragments and energy spectrum deposited in the fluid was characterized as a function of concentration and particle size of the solids.From ftom these results, a useful correlation equation was developed.