Rf for cyclotrons

The following paper will give an overview of cyclotron-specific RF design: it will deal with classical RF structures (Dees), which are mostly based on a λ/4 or λ/2 coaxial line design, and extend to cavity concepts deviating from conventional cyclotron resonators. Such cavities usually can only be employed in Separated Sector Cyclotrons (SSCs), because their designs ask for more space for the RF cavities. Modelling methods, mechanical design and some results are also presented. Specific characteristics and requirements for RF power amplifiers are introduced; illustrated by two types of power amplifiers. Finally, basic concepts and prerequisites for control systems are presented.