Abstract
Circular Electron Positron Collider (CEPC) is a 100-km-ring e+ e− collider for a Higgs factory. The injector is composed of a 10-GeV Linac and a 120-GeV Booster. The CEPC Linac is a normal conducting S-band Linac with frequency of 2860 MHz providing electron and positron beams at an energy up to 10 GeV with 100 Hz repetition frequency. The positron source is the most important part of the CEPC Linac, and the bunch charge of positron beam within some cut-off condition should be larger than 3 nC. The positron source of CEPC is composed of a target, a flux concentrator, a capture section, a pre-accelerating section and a beam separation system. Higher positron yield and capture efficiency are the design goal. Based on simulation, the design will be presented and discussed in detail. The positron yield at the PSPAS exit is larger than 0.55, and the normalized rms emittance is 2370 mm-mrad with a strict cut-off condition. The detailed simulation results will be presented. The design of the positron source including positron production and capture will be presented and can meet the requirements.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
