Stimulated Brillouin backscattering in long-scale-length plasmas

Stimulated Brillouin backscattering in long-scale-length plasmas is calculated using a wave kinetic model. In these calculations use is made of computed hydrodynamic profiles for these plasmas. Results are presented for the parameters of the joint Naval Research Laboratory–Lawrence Livermore National Laboratory experiments and for reactor size pellets of 5 mm characteristic length. Means of reducing high levels of backscattering for the latter case are investigated.