A model for nonlocal α particle transport is implemented
in a one-dimensional radiation hydrodynamics code and applied for
typical directly and indirectly driven ICF target simulations.
Ignition criteria are compared for four configurations; spherical,
cylindrical, planar with a central hot spot, and another planar
configuration with a hot spot on one side. This last planar configuration
is then used for fast ignitor studies, since it is able to simulate
hot spot formation by direct laser heating and free expansion
towards the incoming beam. Ignition requirements as a function
of laser intensity and pulse length, taking into account the
relationship between intensity, hot electron temperature, and
range, are then determined.