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Design of CEPC superconducting RF system
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2019
Year
Superconducting MaterialRf SystemEngineeringHigh-energy AcceleratorsAccelerator PhysicCircular AcceleratorsAccelerator PhysicsElectromagnetic CompatibilitySuperconductivityCepc Collider RingSuperconducting DevicesAccelerator TechnologyElectrical EngineeringParticle Beam PhysicsMicrowave EngineeringParticle PhysicsBeam EnergyCollective InstabilitiesParticle AcceleratorBeam Transport SystemRf Subsystem
CEPC is a 100-km double-ring circular electron–positron collider operating at 90–240 GeV center-of-mass energy of Z-pole, WW-pair production threshold and Higgs resonance. The conceptual design report (CDR) of CEPC has been published as an important step to move the project forward. The superconducting RF (SRF) system is one of the most important and challenging accelerator systems due to the wide range of beam energy and current. In this paper, the layout, parameters and configuration of the superconducting RF system for the CEPC collider ring will be introduced. Issues of beam cavity interactions including transient beam loading and coupled-bunch instabilities of accelerating mode are discussed.