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A high sensitivity tune measurement system for BEPCII

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Abstract

Background

The tune is one of the most important parameters of the storage ring which play a crucial role in the brightness optimization. The synchrotron radiation will suppress the oscillation and make the detection unusual difficulty without any kicker excitation.

Purpose

A new high sensitivity tune measurement system is developed to show the real-time tune during the colliding.

Method

Peak diode detectors are used to convert short beam pulses from a button BPM into slowly varying signals. Their DC components, constituting a large background related to beam offsets, are suppressed by series capacitors, while the small signals related to beam oscillations are passed to the subsequent stages for amplification and filtering.

Conclusion

A direct diode detection technique based on the diode peak hold circuit could increase the sensitivity by hundreds time which gets a clearly tune peak even with synchrotron radiation and bunch-by-bunch feedback damping.

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Acknowledgements

Authors would like to thank to Dr Marek. Gasior for the design of the 3D circuit board and helpful discussion.

Funding

This work was funded by the Youth Innovation Promotion Association CAS (No. 2019013 and Y202005) and the National Natural Science Foundation of China (No. 11975254).

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Authors and Affiliations

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China

    Jun He, Yan-feng Sui, Yan-hua Lu, Yao-yao Du, Lin Wang, Hui-zhou Ma, Yong Li, Ying Zhao, Ling-da Yu, Tao-guang Xu, Jun-hui Yue & Jian-she Cao

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Yan-feng Sui

Authors
  1. Jun He
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  2. Yan-feng Sui
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  3. Yan-hua Lu
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  4. Yao-yao Du
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  5. Lin Wang
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  6. Hui-zhou Ma
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  7. Yong Li
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  8. Ying Zhao
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  9. Ling-da Yu
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  10. Tao-guang Xu
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  11. Jun-hui Yue
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  12. Jian-she Cao
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Corresponding author

Correspondence to Yan-feng Sui.

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Cite this article

He, J., Sui, Yf., Lu, Yh. et al. A high sensitivity tune measurement system for BEPCII. Radiat Detect Technol Methods 6, 88–96 (2022). https://doi.org/10.1007/s41605-021-00300-6

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  • DOI: https://doi.org/10.1007/s41605-021-00300-6

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