The multi-phased beam dump scheme in BRing at the HIAF

Purpose The machine protection system (MPS) is an essential part of the BRing (Booster Ring) at the HIAF (High Intensity heavy ion Accelerator Facility) to protect the accelerator from possible accidents. The high accumulation intensity and the complex operation mode of the BRing require MPS to respond quickly and operate stably. So, the detailed physical scheme of beam dump is proposed, and the corresponding simulation results are discussed in this paper.
Method For this purpose, a multi-phased beam dump scheme based on the bipolar operation of fast extraction kicker magnets is proposed. The basic physical dimensions of the stoppers and energy deposited analysis have been calculated.
Results and conclusion The multi-phased beam dump scheme is able to meet the engineering requirements, and the stopping efficiency can reach 100% for bunched beam.