Study of closed orbit response to magnet vibrations at the SSRF storage ring

CHEN Jian-Hui; ZHAO Zhen-Tang; DAI Zhi-Min; LIU Gui-Min

doi:10.1088/1674-1137/32/7/016

Chinese Physics C> 2008, Vol. 32> Issue(7) : 589-592 DOI: 10.1088/1674-1137/32/7/016

Study of closed orbit response to magnet vibrations at the SSRF storage ring

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Abstract：
This paper presents the analytical and simulation responses of the closed orbit distortion in the SSRF storage ring to random and plane wave like magnet vibrations respectively. It is shown that the use of girder is very beneficial in the view of suppressing this response function. Effect of the independently supported gradient bending magnets to the closed orbit response is given. An analytic formula is written to give a rough estimate of the closed orbit distortion due to ground motion, taking into account the closed orbit response function and girder transfer function. As an example, the result of SSRF case is given.

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CHEN Jian-Hui, ZHAO Zhen-Tang, DAI Zhi-Min and LIU Gui-Min. Study of closed orbit response to magnet vibrations at the SSRF storage ring[J]. Chinese Physics C, 2008, 32(7): 589-592. doi: 10.1088/1674-1137/32/7/016

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Received: 2007-09-17
Revised: 2007-10-26

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of closed orbit response to magnet vibrations at the SSRF storage ring

Corresponding author: ZHAO Zhen-Tang,

Received Date: 2007-09-17
Accepted Date: 2007-10-26
Available Online: 2008-07-05

Abstract:

This paper presents the analytical and simulation responses of the closed orbit distortion in the SSRF storage ring to random and plane wave like magnet vibrations respectively. It is shown that the use of girder is very beneficial in the view of suppressing this response function. Effect of the independently supported gradient bending magnets to the closed orbit response is given. An analytic formula is written to give a rough estimate of the closed orbit distortion due to ground motion, taking into account the closed orbit response function and girder transfer function. As an example, the result of SSRF case is given.