Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring

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TIAN Shun-Qiang, ZHANG Wen-Zhi, LI Hao-Hu, ZHANG Man-Zhou, HOU Jie, ZHOU Xue-Mei and LIU Gui-Min. Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring[J]. Chinese Physics C, 2009, 33(S2): 83-85. doi: 10.1088/1674-1137/33/S2/021
TIAN Shun-Qiang, ZHANG Wen-Zhi, LI Hao-Hu, ZHANG Man-Zhou, HOU Jie, ZHOU Xue-Mei and LIU Gui-Min. Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring[J]. Chinese Physics C, 2009, 33(S2): 83-85.  doi: 10.1088/1674-1137/33/S2/021 shu
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Received: 2009-01-05
Revised: 1900-01-01
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Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring

    Corresponding author: TIAN Shun-Qiang,

Abstract: Phase I commissioning of the SSRF storage ring on 3.0 GeV beam energy was started at the end of December 2007. A lot of encouraging results have been obtained so far. In this paper, calibrations of the linear optics during the commissioning are discussed, and some measured results about the nonlinearity given. Calibration procedure emphasizes correcting quadrupole magnetic coefficients with the Linear Optics from Closed Orbit (LOCO) technique. After fitting the closed orbit response matrix, the linear optics of the four test modes is substantially corrected, and the measured physical parameters agree well with the designed ones.

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