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Abstract
Experimental and theoretical studies have been performed to characterize the behavior of airborne particulates (aerosols) expected to be produced by hypothetical core disruptive accidents (HCDAs) in liquid-metal fast breeder reactors (LMFBRs). These aerosol studies include work on aerosol transport in a 20-m-high, 850-m3 closed vessel at moderate concentrations; aerosol transport in a small vessel under conditions of high concentration (~1 kg/m3), high turbulence, and high temperature (~2000°C); and aerosol transport through various leak paths. These studies have shown that little, if any, airborne debris from LMFBR HCDAs would reach the atmosphere exterior to an intact reactor containment building.