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High Power Laser and Particle Beams, Volume. 35, Issue 7, 074002(2023)

Design and implementation of data transmission of fast orbit feedback system for HEPS

Daoyuan Wang1,2,3, Dapeng Jin1,2,3、*, Peng Zhu1,2,3, Zhexin Xie1,2,3, Lei Zeng1,2, Yuliang Zhang1,2,3, and Yongcheng He1,2,3
Author Affiliations
  • 1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 2Spallation Neutron Source Science Center, Dongguan 523803, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    Figures & Tables(11)
    FOFB architecture of HEPS

    Fig. 1. FOFB architecture of HEPS

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    Globally encoded BPM data format

    Fig. 2. Globally encoded BPM data format

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    Logic architecture of data encoding and transmission of FOFB

    Fig. 3. Logic architecture of data encoding and transmission of FOFB

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    Flow chart of HEPS’s FOFB

    Fig. 4. Flow chart of HEPS’s FOFB

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    Latency of data transmission of FOFB

    Fig. 5. Latency of data transmission of FOFB

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    Test station architecture of FOFB

    Fig. 6. Test station architecture of FOFB

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    Test diagram of data transmission of FOFB

    Fig. 7. Test diagram of data transmission of FOFB

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    Latency of local BPM data transmission

    Fig. 8. Latency of local BPM data transmission

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    Latency of local BPM data encoding

    Fig. 9. Latency of local BPM data encoding

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    Latency of global BPM data transmission

    Fig. 10. Latency of global BPM data transmission

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    • Table 1. Results of data transmission latency

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      Table 1. Results of data transmission latency

      T1a/ns T2b/ns T3c/ns (T1+T2+8T3)/ns
      a The latency of local BPM data transmission, estimated with the length of optical fibers between BI stations and FOFB sub-station b The latency of local BPM data encoding, tested by ILA c The latency of global BPM data transmission, estimated with the length of optical fibers between two adjacent FOFB sub-stations
      8217059509 126
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    Daoyuan Wang, Dapeng Jin, Peng Zhu, Zhexin Xie, Lei Zeng, Yuliang Zhang, Yongcheng He. Design and implementation of data transmission of fast orbit feedback system for HEPS[J]. High Power Laser and Particle Beams, 2023, 35(7): 074002

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    Paper Information

    Category: Particle Beams and Accelerator Technology

    Received: Dec. 30, 2022

    Accepted: Feb. 17, 2023

    Published Online: Jul. 24, 2023

    The Author Email: Jin Dapeng (jindp@ihep.ac.cn)

    DOI:10.11884/HPLPB202335.220379

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology