Milestone progress of the HEPS booster commissioning

分类： 物理学 >> 核物理学 提交时间： 2023-12-28

Yuemei Peng Jianshe Cao Jinhui Chen Haiyi Dong Ping He Yi Jiao Ling Kang WenKang Jian Li Jingyi Li Guoping Lin Fang Liu Fengli Long Cai Meng Xin Qi Huamin Qu Yanfeng Sui Sheng Wang Gang Xu Qiang Ye

摘要： The High Energy Photon Source (HEPS) is the first fourth-generation synchrotron light source building in China. Its injector consists of a Linac and a full energy booster. The booster captures the electron beam from the Linac and further increases its energy to the same as that required by the storage ring. The full-energy beam could be injected to the storage ring directly or after high-energy accumulation. On November 17, 2023, it was demonstrated that key parameters of the booster successfully reached corresponding target values. These milestone results were accomplished based on many contributions, including nearly a decade of physics design, years of development and installation of equipment, as well as months of beam commissioning. As measured at the extraction energy of 6 GeV, the averaged beam current and emittance reached 8.57 mA with 5 bunches and 30.37 nm.rad with a single-bunch charge of 5.58 nC, compared with the corresponding target values of 6.6 mA and 35 nm.rad, respectively. This paper presents the physics design, equipment development and installation, and commissioning process of the HEPS booster.

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