Simulation of operation modes of isochronous cyclotron by a new interative method

The operation mode of a multipurpose isochronous cyclotron designed for acceleration of particles with different A/Z ratio comprises a set of currents in the main coil and trim coils and calculated value of the RF oscillator frequency and dee potential. The operation mode is simulated for a particular particle acceleration task and allows the desired magnetic field to be formed with a given accuracy within the range of working acceleration radii from the injection system to the ion beam extraction system. The initial data include the type of particles to be accelerated, the extraction radius, the kinetic energy of particles at the extraction radius, the harmonic number, the magnetic structure periodicity, the working point selection radius and the measured or simulated magnetic field maps (for the flutter accounting). The working point is the cross point of the isochronous magnetic field and the mean magnetic field from the main coil current. The isochronous magnetic field at the working point selection radius is used for the main coil current calculation. The operation mode Simulation of operation modes of isochronous cyclotron by a new interative method Ryszard Taraszkiewicz, Marek Talach, Jacek Sulikowski, Henryk Doruch, Tadeusz Norys, Artur Sroka, Igor N. Kiyan