Ignition conditions for magnetically insulated tamped ICF targets in cylindrical geometry

The ignition conditions of cylindrical ICF targets, magnetically insulated and inertially confined by a tamper, are investigated by means of one dimen sional hydrodynamic simulations. The central point of interest is the effec t of the tamper on the minimum fuel rhoR value required for igniting pre-as sembled fuel configurations. These configurations are studied for complete suppression of heat conduction losses and full re-deposition of alpha parti cles in the fuel due to the magnetic field. It is found that the value of r hoR required for ignition depends significantly on the tamper volume and th e tamper entropy at stagnation, and that it scales with the fuel mass m per unit length as (rhoR) ign proportional to m(-k), where 0.65 less than or e qual to kappa less than or equal to 1.0.