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Design and development of strip electrode power supply for HEPS wiggler

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Abstract

Purpose

The high-energy photon source (HEPS) is the first fourth-generation synchrotron photon source in China (Jiang et al. in Sci Sin Phys Mech Astron 44:1075–1094, 2014). The strip electrode and its power supply provide necessary hardware support for correcting the magnetic field of the wiggler as reported by Zhao and Yin (Particle accelerator technology, Higher Education Press, Bei**g, 2006). The design of the conventional power supply for accelerators, with a large output current and high output voltage, making it easy to achieve high stability of the output current. The strip electrode power supply poses difficulties in achieving high stability due to its small output current and voltage. Because of size limitations, as well as the requirements of the power architecture, there are currently no commercial products for this type of power supply.

Methods

Designed and developed 32 strip electrode power supplies. Considering the large number of power supplies and limited space, a rack structure design was adopted, placing all power supplies in one rack. The main circuit of the power supply adopts a full bridge transformation structure (Chao et al. in Radiat Detect Technol Methods 6:470–478, 2022), and the control scheme adopts full digital control based on FPGA (Long and Cheng in At Energy Sci Technol 43:780–784, 2009). The power supply has two control modes: local operation and remote operation as reported by Lu (Particle accelerator technology, Hunan University, Changsha, 2010).

Results

The test shows that all power supplies meet the indicator requirements, with a stability of less than 100 ppm.

Conclusions

The strip electrode power supply can effectively correct the multipole integral field error and improve the integral field performance of the wiggler.

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Author information

Authors and Affiliations

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Bei**g, 100049, China

    Yuting Liu, Yang Li, Yunze Du, Fengli Long, **aoling Guo, Pengfei Wei, Chao Han & Yao Gao

  2. University of Chinese Academy of Sciences, Bei**g, 100049, China

    Fengli Long

Authors
  1. Yuting Liu
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  2. Yang Li
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  3. Yunze Du
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  4. Fengli Long
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  5. **aoling Guo
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  6. Pengfei Wei
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  7. Chao Han
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  8. Yao Gao
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Corresponding author

Correspondence to Yang Li.

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Cite this article

Liu, Y., Li, Y., Du, Y. et al. Design and development of strip electrode power supply for HEPS wiggler. Radiat Detect Technol Methods (2023). https://doi.org/10.1007/s41605-023-00432-x

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  • DOI: https://doi.org/10.1007/s41605-023-00432-x

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