Energy property of the impact region due to pure deuterium cluster and heavy-water cluster impacts on a TiD target

Computer simulation by the time-evolution Monte Carlo code DYACAT has been performed in order to investigate the energy property of the cluster impact region due to pure deuterium cluster impacts and heavy-water cluster impacts on a TiD target. It is found that the pure deuterium cluster impacts cannot produce the well-defined, long-lived quasi-equilibrium state and that the energy property of the impact region by heavy-water cluster impacts is mainly determined by the target deuterium atom, not by the cluster deuterium atom. The temperature of the impact region is represented by kT=Et/14.8 exp[-t/τ] with the definition of τ=85(nD)1/3/Et0.15, where Et is the cluster energy per molecule, τ is the cooling time constant and nD is the number of cluster deuterium atoms. Estimated fusion yields lie 6 to 10 orders of magnitude below those reported experimentally. ((orig.))