A New Generation of Heavy Ion Facilities

One area that was not touched on here that is highly relevant to energy boosting of tandem accelerators is that of super-conducting linacs. Although there are not yet major facility proposals based on this technique, a number of laboratories are actively pursuing development studies. A review paper appears in these preceedings as well as several contributions in the session on linear accelerators. Also not discussed was the Bevalac improvement which should provide beams in the upper portion of the region shown in Fig. 1 but with two to three orders of magnitude less intensity than the facilities that have been discussed. Even so, this will be an important member of our heavy ion accelerator arsenal for the next decade. I have tried to summarize the major heavy ion facilities that we should look for through the first of the next decade. I want to end by returning briefly to the subject of the super-tandems. There is an interesting esthetic by-product to these large electrostatic machines. For years we have built horizontal accelerators, often in rather non-descript flat buildings - even tunnels and trenches. But for structural reasons the large tandems are vertical machines and now we have the opportunity to build towers - structures that have always captured mans imagination. Certainly we had a lot of discussion about the form of our tower for Oak Ridge. (Fig. 15) One early suggestion of an architectural style most compatible with our existing buildings is shown in Fig. 16.