Author: Yan, F.
Paper Title Page
TUPYP015 Investigation of Vibrations Attenuation with Different Frequency Along HEPS Ground 48
 
  • Y. Yang, X.Y. Tan, Z.H. Wang, F. Yan
    IHEP, Beijing, People’s Republic of China
  • X.R. Fu, W. Wu, L. Yan
    CAU, Haidian District, Beijing, People’s Republic of China
  • J. Lei
    Peking University, Beijing, Haidian District, People’s Republic of China
 
  High Energy Photon Source (HEPS) has a strict restriction on vibration instabilities. To fulfill the stability specification, vibration levels on HEPS site must be controlled. The control standards are highly related with the vibration amplitude of the sources and the distance between sources and the critical positions. To establish reasonable regulations for new-built vibration sources, the decay patterns on ground are investigated on HEPS site for different frequency noises. A series of experiments were conducted using shaker to generate vibrations with frequency from 1Hz up to 100Hz. The vibration attenuation on ground and slab were measured using seismometers and the attenuation law were analyzed. Details will be presented in this paper.  
poster icon Poster TUPYP015 [0.525 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-TUPYP015  
About • Received ※ 08 November 2023 — Revised ※ 08 November 2023 — Accepted ※ 10 November 2023 — Issued ※ 12 April 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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