Symmetry of illumination and implosion of hotraum targets for heavy ion inertial fusion

M.M Basko
1993 Nuclear Fusion  
The symmetry of implosion of the hotraum target that has been proposed by J. Meyer-ter-Vehn and the author is analysed in the case when the target is driven by a non-spherical ensemble of heavy ion beams. The ion beams, each with a final focus radius rbf L R (R is the target radius), are all assumed to irradiate the target at the same angle CY" and symmetrically with respect to the equatorial plane. Separate one dimensional (1-D) simulations for the pole and equator target sectors indicate that
more » ... the t = 2 mode in the asymmetry of fuel implosion vanishes for a" = 36". The P = 4 mode can also be eliminated by adjusting the ion current profile across each beam. It is conjectured that the higher asymmetry modes with h ' E 6 will be smoothed out by radiative symmetrization to 5 1 %. A 1-D average (over the target latitude) energy gain of G = 57 is calculated.
doi:10.1088/0029-5515/33/4/i08 fatcat:kpcq53ox65fxfjq3al2gzkw4jm