Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring

JIANG Bo-Cheng; LIU Gui-Min; Dai Zhi-Min; ZHAO Zhen-Tang

Chinese Physics C> 2006, Vol. 30> Issue(S1) : 22-24

Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring

Shanghai Institute of Applied Physics, CAS, Shanghai 201800, China2 Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
The longitudinal coupling impedance of the injection section for the SSRF is analyzed in this paper. The main contributions are coated ceramic chambers and the injection tapers. They are treated with the analysis method and numerical method,respectively. The broad band impedance as well as the narrow band impedance of the cavity like structure, which is formed by the two adjacent tapers is calculated. No trapped mode has been found.The broad band impedance is expressed in terms of effective broad band impedance, which is more convenient for microwave instability analysis.

References

[1]	. Danilov V. An Improved Impedance Model of MetallicCoatings, EPAC 2002, 1464—14662. Shaposhnikova E. Signatures of Microwave Instability,CERN-SL-99-008 HRF3. Zisman M S. ZAP User’s Manual. LBL University of Cali-fornia Berkeley. LBL-21270. 1986

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JIANG Bo-Cheng, LIU Gui-Min, Dai Zhi-Min and ZHAO Zhen-Tang. Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring[J]. Chinese Physics C, 2006, 30(S1): 22-24.

JIANG Bo-Cheng, LIU Gui-Min, Dai Zhi-Min and ZHAO Zhen-Tang. Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring[J]. Chinese Physics C, 2006, 30(S1): 22-24. shu

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Received: 2005-12-06
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

Calculation of Coupling Impedance of the Injection Section for the SSRF Storage Ring

Corresponding author: JIANG Bo-Cheng,

Shanghai Institute of Applied Physics, CAS, Shanghai 201800, China2 Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2005-12-06
Accepted Date: 1900-01-01
Available Online: 2006-01-04

Abstract: The longitudinal coupling impedance of the injection section for the SSRF is analyzed in this paper. The main contributions are coated ceramic chambers and the injection tapers. They are treated with the analysis method and numerical method,respectively. The broad band impedance as well as the narrow band impedance of the cavity like structure, which is formed by the two adjacent tapers is calculated. No trapped mode has been found.The broad band impedance is expressed in terms of effective broad band impedance, which is more convenient for microwave instability analysis.