Tuning method for nonuniform traveling-wave accelerating structures

GONG Cun-Kui; ZHENG Shu-Xin; SHAO Jia-Hang; JIA Xiao-Yu; CHEN Huai-Bi

doi:10.1088/1674-1137/37/1/017003

Chinese Physics C> 2013, Vol. 37> Issue(1) : 017003 DOI: 10.1088/1674-1137/37/1/017003

Tuning method for nonuniform traveling-wave accelerating structures

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Abstract：
The tuning method of uniform traveling-wave structures based on the non-resonant perturbation field distribution measurement has been widely used in tuning both constant-impedance and constant-gradient structures. In this paper, the method of tuning nonuniform structures is proposed on the basis of the above theory. The internal reflection coefficient of each cell is obtained from analyzing the normalized voltage distribution. A numerical simulation of tuning process according to the coupled cavity chain theory has been done and the result shows each cell is in right phase advance after tuning. The method will be used in the tuning of a disk-loaded traveling-wave structure which is being developed at the Accelerator Laboratory, Tsinghua University.

References

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Khabiboulline T, Dohlus M, Holtkamp M. Internal Report, DESY M-95-02, 1995[2] Khabiboulline T et al. A New Tuning Method for Traveling Wave Stuctures. Proc. of PAC95. 1996. 1666[3] SHI Jia-Ru et al. Tuning of CLIC Accelerating Structure Prototypes at CERN. Proc. of LINAC10, 2010. 97[4] Steele C W. IEEE Trans. on Microwave Theory and Techniques, 1966, MIT-14(2): 70[5] ZHANG Ke-Qian, LI De-Jie. Electromagnetic Theory for Microwaves and Optoelectronics. second edition. Berlin: Springer, 2008. 146-155[6] ZHENG Shu-Xin. Research on Backward Traveling Wave Accelerating Structures (Ph.D. Thesis). Beijing: Tsinghua University, 2000 (in Chinese)[7] YAO Chong-Guo. Atomic Energy Science and Technology, 1986, 20(2): 13 (in Chinese)

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GONG Cun-Kui, ZHENG Shu-Xin, SHAO Jia-Hang, JIA Xiao-Yu and CHEN Huai-Bi. Tuning method for nonuniform traveling-wave accelerating structures[J]. Chinese Physics C, 2013, 37(1): 017003. doi: 10.1088/1674-1137/37/1/017003

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Received: 2012-03-09
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

Tuning method for nonuniform traveling-wave accelerating structures

Corresponding author: ZHENG Shu-Xin,

Received Date: 2012-03-09
Accepted Date: 1900-01-01
Available Online: 2013-01-05

Abstract: The tuning method of uniform traveling-wave structures based on the non-resonant perturbation field distribution measurement has been widely used in tuning both constant-impedance and constant-gradient structures. In this paper, the method of tuning nonuniform structures is proposed on the basis of the above theory. The internal reflection coefficient of each cell is obtained from analyzing the normalized voltage distribution. A numerical simulation of tuning process according to the coupled cavity chain theory has been done and the result shows each cell is in right phase advance after tuning. The method will be used in the tuning of a disk-loaded traveling-wave structure which is being developed at the Accelerator Laboratory, Tsinghua University.