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Volume 7 Issue 2
Jun.  2023
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Electro-mechanical offset measurements of beam position monitors

  • 1. Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China;

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

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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). The authors would like to thank Ouzheng Xiao for helpful discussions.

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  • Received Date: September 07, 2022
  • Revised Date: January 27, 2023
  • Accepted Date: February 21, 2023
  • Available Online: October 18, 2023
  • Published Date: April 11, 2023
    Abstract
  • Purpose The absolute beam position measurement in the booster and storage ring of the high energy photon source (HEPS) requires the offset between the electrical and mechanical centers of the beam position monitor (BPM).Method Traditionally, an RF signal is sent to an antenna or stretched wire aligned with the vacuum chamber, and the signal at each electrode is measured. Conversely, a replacement method using a vector network analyzer, which was proposed by Lambertson, does not involve mechanical alignment and can be used for electrical offset determination.Results and conclusions The electro-mechanical offsets of booster BPMs of the HEPS were measured using the Lambertson method. The result shows good agreement with the stretched wire method within a 30 μm error.
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    • References (21)
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    • Jun He, Yanfeng Sui, Yong Li, et al. Electro-mechanical offset measurements of beam position monitors[J]. Radiation Detection Technology and Methods, 2023, 7(2): 288-296. DOI: 10.1007/s41605-023-00389-x
    Citation: Jun He, Yanfeng Sui, Yong Li, et al. Electro-mechanical offset measurements of beam position monitors[J]. Radiation Detection Technology and Methods, 2023, 7(2): 288-296. DOI: 10.1007/s41605-023-00389-x
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    2. Jun He, Yanfeng Sui, Chongyang Liang, et al. Preliminary Analysis of Beam Position Monitor Accuracy. Symmetry, 2024, 16(5): 566. DOI:10.3390/sym16050566

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