Simulation and Analysis of Cryogenic System for FFAG Superconducting Magnets

GeV-class proton beam with an average power of several megawatts have many important applications in particle physics towards the intensity frontier, as well as in the advanced energy, and material science. In 2019, China Institute of Atomic Energy (CIAE) proposed an isochronous FFAG conceptual design with capability of producing 2GeV/6MW CW proton beam. The high temperature superconducting magnets are adopted in the 2GeV/6MW FFAG design and are briefly introduced in this paper. The heat loads of superconducting magnets are analyzed by theoretical analysis method. Then, the centralized refrigeration scheme and distributed refrigeration scheme are analyzed and compared by numerical simulation method. Based on that, suggestions for further engineering design are outlined.