Inertial confinement fusion with magnetized fuel in cylindrical targets

摘要

Basic physical principles underlying the performance of cylindrical targets within the concept of magnetized target fusion (MTF) are discussed. If confirmed feasible, such targets might offer an alternative way to a thermonuclear ignition facility for a heavy ion driver. It is shown that inherent inefficiency of cylindrical implosions can be offset by introduction of initial magnetic field of B(sub 0) (approx) (1-3) x 10(sup 5) G. By inhibiting thermal heat conduction, the magnetic field can lower the fuel (pr) threshold for ignition by about a factor 10. An external fuel preheat of up to 100 eV may be needed. A possible target scheme for high gain in cylindrical geometry is outlined. (author) 14 refs.