Review of Linear Accelerators for Heavy Ions

During the past 5 years there has been a considerable increased interest in ions heavier than were available from existing accelerators (M ¿ 40, Argon). The requirements for this new generation of accelerators are: ions of all masses through uranium at maximum energies of 8-10 MeV/A with completely variable energies above 2 MeV/A and with energy resolution better than l/2%. Intensities of up to 1012 ions per second are required. There are presently three heavy ion accelerators in various stages of planning, design and construction, all of which use linear accelerators as a portion of the system. These are the Unilac at Darmstadt, the Helac at Heidelberg, and the SuperHilac in Berkeley. A brief discussion of these proposed accelerators is presented as well as the present status of these projects.