Design and first commissioning of a new mode with lower emittance in the SSRF storage ring

ZHANG Wen-Zhi; TIAN Shun-Qiang; ZHANG Man-Zhou; HOU Jie; LI Hao-Hu; LIU Gui-Min; ZHAO Zhen-Tang

doi:10.1088/1674-1137/33/5/016

Chinese Physics C> 2009, Vol. 33> Issue(5) : 397-400 DOI: 10.1088/1674-1137/33/5/016

Design and first commissioning of a new mode with lower emittance in the SSRF storage ring

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Abstract：
A new mode is designed with an emittance of 2.47 nm﹒rad at 3.0 GeV beam energy, lower than the nominal mode of the Shanghai Synchrotron Radiation Facility (SSRF) storage ring. Details of the linear optics design and the nonlinear optimization are presented in this paper. During Phase I commissioning of the storage ring we tested the new optics mode and some expected results were obtained. After restoring the linear optics by means of the linear optics with closed orbit technique, the main parameters of the real machine agree well with the designed values and the injection efficiency and beam lifetime are acceptable.

References

[1]

. XU Hong-Jie, ZHAO Zhen-Tang. Nuclear Science andTechniques, 2008, 19: 12. LIU Gui-Min, DAI Zhi-Min, LI Hao-Hu et al. HEP NP,2006, 30(Supp.I): 144 (in Chinese)3. LIU G M, LI H H, ZHANG W Z et al. Commissioning ofthe SSRF Storage Ring. In: Proceedings of EPAC. Genoa,Italy: 2008. 2079-20814. TIAN Shun-Qiang, HOU Jie, CHEN Guang-Ling et al. Chi-nese Physics C, 2008, 32(8): 6615. TIAN Shun-Qiang, LIU Gui-Min, HOU Jie, CHEN Sen-Yu.Chinese Physics C, 33(1): 65-736. TIAN Shun-Qiang, LIU Gui-Min, LI Hao-Hu et al. Chinese Physics C, 33(2): 127-1347. Terebilo A. Accelerator Toolbox for MATLAB, In: SLAC-PUB-87328. ZHANG Man-Zhou, LI Hao-Hu, JIANG Bo-Cheng et al.Chinese Physics C, 33(4): 301-3059. HOU Jie, TIAN Shun-Qiang, ZHANG Man-Zhou et al.Chinese Physics C, 33(2): 145-15010. Safranek J. Nucl. Instrum. Methods A, 1997, 388: 27

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ZHANG Wen-Zhi, TIAN Shun-Qiang, ZHANG Man-Zhou, HOU Jie, LI Hao-Hu, LIU Gui-Min and ZHAO Zhen-Tang. Design and first commissioning of a new mode with lower emittance in the SSRF storage ring[J]. Chinese Physics C, 2009, 33(5): 397-400. doi: 10.1088/1674-1137/33/5/016

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Received: 2008-06-17
Revised: 2008-07-22

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Design and first commissioning of a new mode with lower emittance in the SSRF storage ring

Corresponding author: ZHANG Wen-Zhi,

Received Date: 2008-06-17

Accepted Date: 2008-07-22

Available Online: 2009-05-05

Abstract:

A new mode is designed with an emittance of 2.47 nm﹒rad at 3.0 GeV beam energy, lower than the nominal mode of the Shanghai Synchrotron Radiation Facility (SSRF) storage ring. Details of the linear optics design and the nonlinear optimization are presented in this paper. During Phase I commissioning of the storage ring we tested the new optics mode and some expected results were obtained. After restoring the linear optics by means of the linear optics with closed orbit technique, the main parameters of the real machine agree well with the designed values and the injection efficiency and beam lifetime are acceptable.

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Design and first commissioning of a new mode with lower emittance in the SSRF storage ring

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通讯作者: 陈斌, bchen63@163.com

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