A Low Energy Separated Orbit Cyclotron

Acceleration in the SOC is achieved by rf cavities placed at equal angular intervals about a ring of alternating gradient guide field magnets wrapped in a flat spiral. Coaxial cavities with two accelerating gaps and having voltage uniform with radius appear to be more economical than tapered rectangular cavities, for machines up to 100 MeV. Deuterons and alpha particles can also be accelerated in a proton machine by operating it on a harmonic number differing by a factor of two. About 5% adjustment in magnetic field is necessary to correct H¿ when ßp is twice ßd.