Computer modeling of beam space charge effects in cyclotron injector into JINR phasotron

Charge particle beam dynamics including space charge by direct Coulomb particle-to-particle method was simulated. For this purpose in MATLAB a new code KASKADS was developed. Numerical simulations of the particle motion confirm that it is possible to achieve separated orbits in a 5 MeV, 30 mA separated sector cyclotron (accelerating voltage varies depending on radius from 150 kV in the centre to 240 kV in the extraction region). The aperture of the accelerator must be greater than 3 cm.