Magnetized cylindrical targets for heavy ion fusion

Ignition conditions for magnetized cylindrical fusion targets are investigated by means of one-dimensional hydrodynamic calculations. Of particular interest is the effect of a tamper surrounding the fuel at the time of stagnation. The key assumption in this paper is that the targets are magnetically insulated, i.e. electronic and ionic heat conduction as well as the diffusion of 3.5 MeV alpha particles are suppressed. It is found that magnetically insulated targets can be ignited at significantly reduced values of the fuel ρR, but, in contrast to conventional fusion targets, the value of the fuel ρR at ignition depends on the fuel mass as well as on the tamper entropy.