3-DIMENSIONAL MAGNETIC-FIELD ENHANCEMENT IN A LINER IMPLOSION SYSTEM

The magnetic field enhancement is calculated for a magnetically implod ed liner system that has flux excluding radial vanes. For the thinnest vane tested the field is found to concentrate at the vanes to a maxim um value of almost three times its ambient value with a corresponding temperature increase well above the melting point. These values are ca lculated using the three-dimensional magnetohydrodynamic code, MACH3, which is described in the appendix. Calculations are performed for thr ee vane thicknesses, and the vane movement is estimated. A bound is es tablished on the design specification of the vanes based the disruptio n of current delivery to the liner due to the movement of the vanes.