Radiation effect on pellet implosion in LIB ICF

In this paper the radiation transport effect on pellet implosion is studied in a Light-Ion-Beam(LIB) inertial Confinement Fusion(ICF) by numerical simulation and analyses. First we present the nonuniformity-smoothing effect of the radiation transport on an implosion symmetry of the LIB-ICF fuel pellet. Then the radiation effect on the Rayleigh-Taylor instability is studied. The numerical studies present the following results: The 2-dimensional implosion simulation shows that the initial nonuniformity can be smoothed out well in a LIB ICF pellet in which the electron temperature is low, for example several hundreds eV, compared with that in a Laser fusion; For example the initial nonuniformity of 6% is smoothed down to 0.07% during the implosion phase. In addition, the linear analyses for the Rayleigh-Taylor instability shows the damping effect of the radiation transport.