Coupling Compensation Scheme in BEPCⅡ

YU Cheng-Hui; WU Ying-Zhi; XU Gang

Chinese Physics C> 2005, Vol. 29> Issue(4) : 418-423

Coupling Compensation Scheme in BEPCⅡ

Institute of High Energy Physics,CAS,Beijing 100049,China

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Abstract：
A new idea to compensate the coupling of bePcⅡ will be introduced in this paper. the detector solenoid field in the interaction region will be compensated by six anti–solenoids which are located nearby the interaction point. skew quadrupoles are adopted for the global coupling compensation. the coupling compensation scheme and the method to measure and tune the x–y coupling will be discussed in detail.

References

[1]	. Edwards D A, Teng L C. IEEE Trans. Nucl . Sci. , 1973, 20: 32. Sagan D,Rubin D. Phy. Rev. ST Accel. Beams, 1999, 2: 0740013. Ohnishi Y. EPAC 2000.. Austria, 20004. http: / / www..acc..theory. kek. jp/ SAD/ sad. html

[1] Xu Jianming . Matching Problem of Lattice with Transverse Coupling. Chinese Physics C, 1995, 19(1): 73-81.
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YU Cheng-Hui, WU Ying-Zhi and XU Gang. Coupling Compensation Scheme in BEPCⅡ[J]. Chinese Physics C, 2005, 29(4): 418-423.

YU Cheng-Hui, WU Ying-Zhi and XU Gang. Coupling Compensation Scheme in BEPCⅡ[J]. Chinese Physics C, 2005, 29(4): 418-423. shu

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Received: 2004-07-09
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Coupling Compensation Scheme in BEPCⅡ

Corresponding author: YU Cheng-Hui,

Institute of High Energy Physics,CAS,Beijing 100049,China

Received Date: 2004-07-09
Accepted Date: 1900-01-01
Available Online: 2005-04-05

Abstract: A new idea to compensate the coupling of bePcⅡ will be introduced in this paper. the detector solenoid field in the interaction region will be compensated by six anti–solenoids which are located nearby the interaction point. skew quadrupoles are adopted for the global coupling compensation. the coupling compensation scheme and the method to measure and tune the x–y coupling will be discussed in detail.