MEDSI2023 - List of Authors (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 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
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

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 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
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

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 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

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

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 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

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)