Abstract
The high-energy photon source (HEPS) is the first fourth-generation synchrotron light source facility in China. The HEPS injector consists of a linear accelerator (Linac) and a full energy booster. The booster captures the electron beam from the Linac and increases its energy to the value required for the storage ring. The full-energy beam could be injected to the storage ring directly or after “high-energy accumulation.” On November 17, 2023, the key booster parameters successfully reached their corresponding target values. These milestone results were achieved based on numerous contributions, including nearly a decade of physical design, years of equipment development and installation, and 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 physical design, equipment development, installation, and commissioning process of the HEPS booster.
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The data that support the findings of this study are openly available in Science Data Bank at https://cstr.cn/31253.11.sciencedb.j00186.00370 and https://doi.org/https://doi.org/10.57760/sciencedb.j00186.00370.
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Acknowledgements
The authors thank all those involved in the design, construction, and commissioning of the HEPS booster.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Y-MP, J-YL, and YJ. The first draft of the manuscript was written by Y-MP, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Yi Jiao is an editorial board member for Nuclear Science and Techniques and was not involved in the editorial review, or the decision to publish this article. All authors declare that there are no competing interests.
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This work was supported by the National Natural Science Foundation of China (No. 12005239).
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Peng, YM., Cao, JS., Chen, JH. et al. Milestone progress of the HEPS booster commissioning. NUCL SCI TECH 35, 16 (2024). https://doi.org/10.1007/s41365-024-01365-w
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DOI: https://doi.org/10.1007/s41365-024-01365-w