摘要
Purpose To protect accelerator devices from being damaged by high-power beam,a new beam dump system is under design for HIAF-BRing.Method Based on the optical characteristics,unwanted particles are safely deflected to a specific internal absorber through a local bump orbit generated by active-discharging magnets,which is achieved by paralleling a bleeder resistor of 600 m�to two of dipole magnet power supplies.Results Taking alignment and multipolefield errors into account,discarded beam can be dumped within 5 ms with an efficiency of more than 99.8%at any operation stage.Conclusion The proposed beam dump solution satisfies the machine protection requirements for BRing and can provide a new idea for similar facilities.
基金
support from The National Key R&D Program of China(Grant No.2019YFA0405400)
China National Funds for Distinguished Young Scientists(No.11825505)
Guangdong Innovative and Entrepreneurial Research Team Program(Grant No.2016ZT06G373).
