Reviews in Physics (Jun 2023)
Evolution of induction synchrotrons
Abstract
The inevitable progress from betatron to high energy circular induction accelerators is described. On the basis of an example of induction synchrotrons that has been put to practical use, characteristics and figures of benefit of circular induction accelerators are explained in detail. Details of the slow cycling induction synchrotron and the fast-cycling induction synchrotron which have been proven at KEK since 2004 are described. The existing RF acceleration systems in the KEK 12 GeV proton synchrotron and the 500 MeV Booster ring have been fully replaced by induction acceleration systems. A series of studies performed after the demonstration of induction synchrotron strongly indicated that existing circular RF accelerators such as cyclotron, microtron, and FFAG can be replaced by circular induction accelerators with increased flexibility and performance. Attractive applications such as the next generation of hadron therapy, the high energy cluster ion generator, or heavy ion inertial fusion are introduced.
