Cluster impact fusion
A computer simulation by the time-evolution Monte Carlo code DYACAT has been performed in order to investigate the possibility of heavy-ion cluster impact fusion due to heavy-ion cluster impacts on a TiD2 target. As a heavy-ion cluster, (Al)N, (Ti)N and (Ag)N clusters are considered. These three cluster impacts can produce a well-defined, long-lived quasi-equilibrium state. It is found that Al clusters can transfer their energy to target deuterium atoms most efficiently among these three clusters. For the (Al)N cluster impacts, the temperature of target deuterium atoms in the impact region is well represented by kT = E01.13/79.6 exp[-t/tau], where E0is the cluster energy per atom in eV, and is the cooling time constant which is given as tau = 2.1 × 102N0.10/E00.12 fs. The total fusion yield per cluster impact is of the order of 10^-11 for 50 keV/atom (Al)200 cluster impacts.
