Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ

WANG Dou; QIN Qing; GAO Jie

doi:10.1088/1674-1137/34/11/019

Chinese Physics C> 2010, Vol. 34> Issue(11) : 1762-1767 DOI: 10.1088/1674-1137/34/11/019

Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ

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Abstract：
In this paper, a dedicated synchrotron radiation (SR) mode for the BEPCⅡ with an emittance of 85 nm has been designed, including the linear lattice, chromaticity correction and dynamic aperture optimization. The emittance of the new mode is about 60% of the previous mode used for routine operation of the BEPCⅡ. The effect of wigglers on the linear lattice was
compensated and the total dynamic aperture including the wigglers' nonlinear effect was estimated. The preliminary commissioning at the end of 2008 and the formal operation with the new mode confirmed its merits.

References

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Verdier A.Chromaticity.CERN 95-06,1995[2] Wiedemann H.Particle Accelerator Physics.Springer,2007.314[3] ZHOU D M.BEPCⅡ Hard-edge Wiggler Modal Based on Magnetic Measurement.IHEP-AC-BEPCⅡ-MD/2007-34 (in Chinese)[4] WANG D,QIN Q.BEPCⅡ SR Mode Study with Wigglers.IHEP-AC-BEPCⅡ-MD/2008-06 (in Chinese)[5] GAO J.Nucl.Instrum.Methods A,2000,451:545-557[6] GAO J.Nuel.Instrum.Methods A,2004,516:243-248[7] Chinese Academy of Sciences.Design Report for the Upgrade of BEPC.IHEP-BEPCⅡ-SB-03-3,2003.11 (in Chinese)

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WANG Dou, QIN Qing and GAO Jie. Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ[J]. Chinese Physics C, 2010, 34(11): 1762-1767. doi: 10.1088/1674-1137/34/11/019

WANG Dou, QIN Qing and GAO Jie. Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ[J]. Chinese Physics C, 2010, 34(11): 1762-1767. doi: 10.1088/1674-1137/34/11/019 shu

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Received: 2009-10-23
Revised: 2010-07-06

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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

Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ

Corresponding author: GAO Jie,

Received Date: 2009-10-23

Accepted Date: 2010-07-06

Available Online: 2010-11-05

Abstract:

In this paper, a dedicated synchrotron radiation (SR) mode for the BEPCⅡ with an emittance of 85 nm has been designed, including the linear lattice, chromaticity correction and dynamic aperture optimization. The emittance of the new mode is about 60% of the previous mode used for routine operation of the BEPCⅡ. The effect of wigglers on the linear lattice was
compensated and the total dynamic aperture including the wigglers' nonlinear effect was estimated. The preliminary commissioning at the end of 2008 and the formal operation with the new mode confirmed its merits.

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Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ

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通讯作者: 陈斌, bchen63@163.com

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