This paper presentsthethermalanalyses for steady state, depressurizationand total loss of flow in the tokamakheliumcooling slab fuelelementfusion-fissionhybridreactor.
Fusion is the process of forcing the nuclei of atoms so close together that they fuse into a nucleus of a new element. (Fission, of course, is the opposite: energy produced by splitting nuclei.) The new, fused nucleus weighs less than the original two.