status of heps booster lattice design and physics studies

• DOI: 10.18429/jacow-ipac2018-tupmf062
• Publication Date: 2018-01-01
• Authors: Daheng Ji; Yuemei Peng; Zhe Duan; Haisheng Xu; Cai Meng; Yi Jiao; Saike Tian; Yuan Guo; Jingyi Li
• Keywords: 0103 physical sciences; A24 Accelerators and Storage Rings, Other; 02 Photon Sources and Electron Accelerators; 01 natural sciences; 7. Clean energy; Accelerator Physics

The High Energy Photon Source (HEPS) with an ul-tralow emittance is proposed to be built in Beijing, Chi-na. It will utilize a booster as its full energy injector. On-axis swap-out injection is chosen as the baseline injec-tion scheme for the storage ring. As required by the stor-age ring, a beam with a bunch charge up to 2.5 nC is needed to be injected in the booster. However, limited by the transverse mode coupling instability (TMCI), such a high bunch charge is challenging. To overcome this problem, a lattice with a considerable large momentum compaction factor is designed. This paper reports the lattice design and physics studies of the HEPS booster, including injection and extraction design, error studies, eddy current effects, collective effects, and so on.<br/>Proceedings of the 9th Int. Particle Accelerator Conf., IPAC2018, Vancouver, BC, Canada<br/>