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Chinese Physics C> 2016, Vol. 40> Issue(9) : 097001 DOI: 10.1088/1674-1137/40/9/097001

Tuner control system of Spoke012 SRF cavity for C-ADS injector I

  • A new tuner control system for spoke superconducting radio frequency (SRF) cavities has been developed and applied to cryomodule I of the C-ADS injector I at the Institute of High Energy Physics, Chinese Academy of Sciences. We have successfully implemented the tuner controller based on Programmable Logic Controller (PLC) for the first time and achieved a cavity tuning phase error of ± 0.7° (about ± 4 Hz peak to peak) in the presence of electromechanical coupled resonance. This paper presents preliminary experimental results based on the PLC tuner controller under proton beam commissioning.
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  • References

    [1] Jingyu Tang, Zhihui Li, Conceptual Physics Design on the C-ADS Accelerators, IHEP-CADS-Report, 2012
    [2] A. Zachary. Conway, Electro-mechanical interacttions in superconducting spoke-loaded cavities, Ph.D thesis, 2007,p 54-58
    [3] W. Schappert, J. Holzbauer et al. Resonance control for narrow-bandwidth superconducting RF application, Proceedings of SRF2015
    [4] Zheng-Hui Mi et al, A tuning system for BEPCⅡ, CPC, 2013, 0870031-0870035
    [5] Z. Fang et al. Auto-tuning systems for J-PARC LINAC RF cavities, Nuclear Instruments and Methods in Physics Research A, 767:135-145(2014)
    [6] J. R. Delayen, Ponderomotive instabilities and microphonic-a tutorial, Physica C, 441:1-6(2006)
    [7] D. Schulze, Ponderomotive Stability of RF Resonators and Resonator Control Systems, Ph.D. thesis, 1971, p38-40
    [8] J. R. Delayen, Phase and Amplitude Stabilization of Superconducting Resonators, Ph.D. thesis, 1978, p59-60

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Na Liu, Yi Sun, Guang-Wei Wang, Zheng-Hui Mi, Hai-Ying Lin, Qun-Yao Wang, Rong Liu and Xin-Peng Ma. Tuner control system of Spoke012 SRF cavity for C-ADS injector I[J]. Chinese Physics C, 2016, 40(9): 097001. doi: 10.1088/1674-1137/40/9/097001
Na Liu, Yi Sun, Guang-Wei Wang, Zheng-Hui Mi, Hai-Ying Lin, Qun-Yao Wang, Rong Liu and Xin-Peng Ma. Tuner control system of Spoke012 SRF cavity for C-ADS injector I[J]. Chinese Physics C, 2016, 40(9): 097001.  doi: 10.1088/1674-1137/40/9/097001 shu
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Received: 2016-02-10
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    Supported by Proton linac accelerator I of China Accelerator Driven sub-critical System (Y12C32W129)

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Tuner control system of Spoke012 SRF cavity for C-ADS injector I

    Corresponding author: Na Liu,
  • Received Date: 2016-02-10
  • Available Online: 2016-09-05
Fund Project:  Supported by Proton linac accelerator I of China Accelerator Driven sub-critical System (Y12C32W129)

Abstract: A new tuner control system for spoke superconducting radio frequency (SRF) cavities has been developed and applied to cryomodule I of the C-ADS injector I at the Institute of High Energy Physics, Chinese Academy of Sciences. We have successfully implemented the tuner controller based on Programmable Logic Controller (PLC) for the first time and achieved a cavity tuning phase error of ± 0.7° (about ± 4 Hz peak to peak) in the presence of electromechanical coupled resonance. This paper presents preliminary experimental results based on the PLC tuner controller under proton beam commissioning.

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