L20_ANuclear Resource UtilizationReprocessing and FabricationF=Ffiss+Ffertα=Rfiss/Ffissβ=Ffert/Fγ=Wfiss/Dfiss=Wfert/Dfert L20_BSafeguard4.7 Isotope separationEnrichmentMaterial Balance & Separative Work"SWU"