Beam dynamics simulation for the high intensity cyclotrons

In the DAE δ ALUS (Decay-At-rest Experiment for δ CP studies At the Laboratory for Underground Science) project, high power H 2 + cyclotron chains are proposed to efficiently provide proton beams with a kinetic energy of 800 MeV and an average power in the MW range. Space charge plays a pivotal role in both the injector and the ring cyclotrons. Large-scale particle simulations show that the injector cyclotron is a space charge dominated cyclotron and that a 5 mA beam current can be extracted with tolerable beam losses on the septum. In contrast, in the ring cyclotron, no space charge induced beam loss is observed during acceleration and extraction.