0 6 0 3 - - Pulsed Power Fusion Program Update

RECEIVED R. B. Spielman, W. A Stygar, M. A Sweeney, and R. A. Vesey Sandia National Laboratories JUW 0 8 1998 Albuquerque, AM87185-1191 Q S T I The U. S . Department of Energy has supported a substantial research program in Inertial Confinement Fusion (ICF) since the early 1970's. Over the course of the ensuing 25 years, pulsed power approaches to inertial fbsion have remained of interest primarily because of the high energy, efficiency, and relatively low cost of the technology when compared to the mainline ICF approach involving large glass lasers. These compelling advantages of pulsed power, however, have been tempered with the difficulty that has been encountered in concentrating the energy in space and time to create the high energy and power density required to achieve temperatures usefbl in indirect drive ICF. Since the Beams '96 meeting two years ago, the situation has changed dramatically and extremely high x-ray power (-290 TW) and energy (-1.8 MJ) have been produced in fast z-pinch implosions on the Z accelerator. These sources have been utilized to heat hohlraums to > 150 eV and have opened the door to important ICF capsule experiments.