LIQUID METAL FUEL REACTOR EXPERIMENT--CRITICAL EXPERIMENT. Final Hazards Evaluation
The LMFRE is described briefly. It is a graphite moderated, graphite reflected reactor, using as fuel a circulating solution of U/sup 235/ in liquid bismuth, which transports heat to an external heat rejection system. The critical experiment program is outlined. The basic information to be obtained is the critical size and concentration of a series of assemblies in which the uranium concentration snd reflector thickness are varied. Control rod experiments are planned, as well as test hole effects, and effects of fuel in the reflectors and plenums. The critical sssembly is constructed in two halves, one each on a movablemore »