The first simulations employing a kinetic treatment of both fuel and shellions to model inertial confinement fusion experiments are presented, includingresults showing the importance of kinetic physics processes in altering fusionburn. A pair of direct drive capsule implosions performed at the OMEGA facilitywith two different gas fills of deuterium, tritium, and helium-3 are analyzed.During implosion shock convergence, highly non-Maxwellian ion velocitydistributions and separations in the density and temperature amongst the ionspecies are observed. Diffusion of fuel into the capsule shell is identified asa principal process that degrades fusion burn performance.
展开▼
