Coupler conditioning and high power testing of ADS Spoke cavity

CHEN Xu; MENG Fan-Bo; MA Qiang; HUANG Tong-Ming; LIN Hai-Ying; PAN Wei-Min

doi:10.1088/1674-1137/38/2/027001

Chinese Physics C> 2014, Vol. 38> Issue(2) : 027001 DOI: 10.1088/1674-1137/38/2/027001

Coupler conditioning and high power testing of ADS Spoke cavity

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Abstract：
Power couplers, used in China-ADS proton linac injector Ⅰ, are required to transfer 6 kW RF power to the superconducting Spoke cavities. At present, first the two couplers of a coaxial design have been fabricated, which accomplished a high power test at IHEP. The test results indicated that couplers of this design are qualified to deliver 10 kW RF power in continuous travelling wave mode. This paper describes the coupler's room temperature test procedures and results and discusses the original high power test, which was terminated due to serious out-gassing and after some modifications. In the final test, the couplers smoothly exceeded the design power level.

References

[1]

Rusnak B, WANG F et al. High Power Coupler Componet Test Stand Status and Results. Proceedings of PAC07. AI-buquerque, New Mexico, USA[2] PAN Wei-Min, HUANG Tong-Ming, MA Qiang. High Power Conditioning of the Input Coupler for BEPCⅡ Superconducting Cavity. Chinese Physics C (HEP NP), 2008, 32(9): 766-767[3] HUANG Tong-Ming. Study of High Power Input Coupler for Superconducting Cavity (Ph. D. Thesis). Beijing: Institute of High Energy Physics, CAS, 2009, 88-89[4] Hasan Padamsee, Jens Knobloch, Tom Hays. RF Superconductivity for Accelerator. New York: John Wiley Sons, INC, 1998. 418-419

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CHEN Xu, MENG Fan-Bo, MA Qiang, HUANG Tong-Ming, LIN Hai-Ying and PAN Wei-Min. Coupler conditioning and high power testing of ADS Spoke cavity[J]. Chinese Physics C, 2014, 38(2): 027001. doi: 10.1088/1674-1137/38/2/027001

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Received: 2013-04-15
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

Coupler conditioning and high power testing of ADS Spoke cavity

Received Date: 2013-04-15
Accepted Date: 1900-01-01
Available Online: 2014-02-05

Abstract: Power couplers, used in China-ADS proton linac injector Ⅰ, are required to transfer 6 kW RF power to the superconducting Spoke cavities. At present, first the two couplers of a coaxial design have been fabricated, which accomplished a high power test at IHEP. The test results indicated that couplers of this design are qualified to deliver 10 kW RF power in continuous travelling wave mode. This paper describes the coupler's room temperature test procedures and results and discusses the original high power test, which was terminated due to serious out-gassing and after some modifications. In the final test, the couplers smoothly exceeded the design power level.