Multi-megajoule heavy-ion induction linacs

One of the most promising Inertial Confinement Fusion (ICF) igniter concepts is the heavy-ion induction linac system. A driver providing a beam of heavy ions has the potential advantages of a short ion range in the target material, a very large power transport capability, and the ability to produce high power densities at distances of 5-10m from the final lens elements required in a power-producing reactor. Many driver configurations are possible, and it has been generally found that the driver would be the dominant cost item in a power plant. Some preliminary results obtained from a design and cost optimization computer program for an ion induction linac accelerator are presented. An estimate of the effect of ICF system cost on the cost of generated electricity is made. (author)