NUMERICAL ANALYSIS OF PULSED NEUTRON GENERATION FROM 12 TW 50 fs LASER WITH DEUTERIUM CLUSTER

It has been recognized that irradiation of intense laser on atomic cluster leads to a number of novel phenomena, including efficient heating of electron, rapid and efficient subsequent heating of ions, and efficient emission of X-ray. Recently, it has been shown that the high energy ions can yield fusion reaction and neutron generation. We present 2-dimensional Particle–In-Cell simulations of atomic cluster explosions by interaction with a high-intensity femtosecond laser pulse. We investigate the dynamics of deuterium cluster explosion providing information about time-resolved ion energy spectra for various laser intensities and cluster sizes. Our present simulation is done for single cluster-laser interaction.