Author: He, P.
Paper Title Page
WEKAM01
 The Progress of HEPS Project  
 
  • P. He
    IHEP, Beijing, People’s Republic of China
  
  HEPS(High Energy Photon Source) is 1st high energy synchrotron radiation facility in China, it will be located at Huairou Science City(80km away from Beijing). This 7BA, 6GeV, 200mA machine which has horizontal emittance ¿h around 60pm.rad to gain the high brilliance photon beam, this compact lattice design bring so many engineering challenges for accelerator systems. Here we will present the novel lattice and sub-system design, and show you the project main progresses since Jan. 2020.  
slides icon Slides WEKAM01 [16.462 MB]  
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THPPP047 NEG Film Development and Massive Coating production for HEPS 343
 
  • Y.S. Ma, H. Dong, D.Z. Guo, P. He, F. Sun, Y.C. Yang
    IHEP, People’s Republic of China
  • T. Huang
    IHEP CSNS, Guangdong Province, People’s Republic of China
  
  Massive production facilities of NEG coated vacuum chambers have been developed for HEPS in Huairou, Beijing, which based on the NEG coating prototypes of HEPS-TF. The facilities can achieve simultaneous coating of 16~20 vacuum chambers of HEPS including irregular shaped vacuum chambers. The pumping per-formance of the NEG coated vacuum chambers has been measured by test facilities. After heating at 200°C for 24 hours, the highest pumping speed of H₂ is about 0.65 l/scm2, and the highest capacity of CO is about 1.89×10-5 mbar·L/cm2. The lifetime is more than 20 cycles of air exposure and re-activation. The pumping performance meets the design requirements of HEPS. Currently the NEG coated vacuum chambers are applied to the storage ring of HEPS.  
DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-THPPP047  
About • Received ※ 02 November 2023 — Revised ※ 09 November 2023 — Accepted ※ 22 November 2023 — Issued ※ 18 July 2024
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FROAM04 Stability and Vibration Control for High Energy Photon Source in China 368
 
  • F. Yan, Z. Duan, P. He, X.Y. Huang, D. Ji, Y. Jiao, G.P. Lin, W.M. Pan, X.Y. Tan, Z.H. Wang, Y. Wei, G. Xu, Y. Yang
    IHEP, Beijing, People’s Republic of China
  
  TThe High Energy Photon Source (HEPS) is the first high-energy diffraction-limited storage ring (DLSR) light source to be built in China with natural emittance of few tens of picometer radian. Beam stability is critical for such an ultralow-emittance facility. Controlling and minimizing the sources and transmission of vibrations internally and externally of HEPS is an important issue for achieving the stability needed to generate and operate the high brightest beams. In this presentation, we report that the vibration levels on bare HEPS ground, the ground motion analytical model related with frequency, the designed site vibration specifications together with the careful consideration and basis. Also, the stable building design concepts, passive and active ways to minimize effects on the stability of the photon beam and critical accelerator and beamline components caused by ambient ground motion sources and the actual control effect will be introduced in detail.  
slides icon Slides FROAM04 [4.238 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-FROAM04  
About • Received ※ 02 November 2023 — Revised ※ 07 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 18 November 2023
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FRCLM01
 MEDSI2023 Closing Remarks  
 
  • L. Bian, P. He
    IHEP, Beijing, People’s Republic of China
  
  MEDSI2023 Closing Remarks.  
slides icon Slides FRCLM01 [4.529 MB]  
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