Modelling challenges of the high power cyclotrons for the DAEδALUS project

摘要

Design studies, for accelerator modules based on an injector cyclotron and a superconducting ring cyclotron able to accelerate H_2~+ molecules, are presented. H_2~+ molecules are stripped by a foil creating a proton beam, with a maximum energy of 800 MeV and a beam power of 8 MW (CW). This beam would be sent to a beam dump where neutrinos would be produced from pion and muon decays at rest for the Decay At rest Experiment for δ_(CP) At the Laboratory for Underground Science - DAEδALUS. We discuss the advantage of H_2~+ molecules for acceleration and present precise beam dynamics simulations w.r.t. extraction and beam losses. In general, beam losses are one of the most challenging aspects of such a high power cyclotron design and must be addressed very early on in the design. We also address H_2~+ dissociation and the stripping process, two other characteristic challenges of the DAEδALUS design.