• NUCLEAR TECHNIQUES
  • Vol. 47, Issue 2, 020101 (2024)
Zhidi LEI1, Rongbing DENG1、*, Haixiao DENG1, Tingting ZHEN1, Fei GAO1, Lixin YIN1, Yawei HUANG2, and Yiyong LIU1
Author Affiliations
  • 1Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
  • 2ShanghaiTech University, Shanghai 201210, China
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    DOI: 10.11889/j.0253-3219.2024.hjs.47.020101 Cite this Article
    Zhidi LEI, Rongbing DENG, Haixiao DENG, Tingting ZHEN, Fei GAO, Lixin YIN, Yawei HUANG, Yiyong LIU. Experimental study on vibration displacement characteristics of superconducting cavity in cryogenic environment[J]. NUCLEAR TECHNIQUES, 2024, 47(2): 020101 Copy Citation Text show less
    Schematic of cryomodule structure and test point layout
    Fig. 1. Schematic of cryomodule structure and test point layout
    Test site photographs
    Fig. 2. Test site photographs
    Superconducting cavity cooling curve
    Fig. 3. Superconducting cavity cooling curve
    Integral displacements of vertical mechanical vibration of superconducting cavity
    Fig. 4. Integral displacements of vertical mechanical vibration of superconducting cavity
    Power spectral densities of POST vertical displacement at different temperatures
    Fig. 5. Power spectral densities of POST vertical displacement at different temperatures
    Power spectral densities of vertical displacement of superconducting cavity at different temperatures
    Fig. 6. Power spectral densities of vertical displacement of superconducting cavity at different temperatures
    Amplitudes of the frequency response function
    Fig. 7. Amplitudes of the frequency response function
    Integral displacements of transverse mechanical vibration of superconducting cavity
    Fig. 8. Integral displacements of transverse mechanical vibration of superconducting cavity
    Power spectral densities of POST transverse displacement at different temperatures
    Fig. 9. Power spectral densities of POST transverse displacement at different temperatures
    Power spectral densities of transverse displacement of superconducting cavity at different temperatures
    Fig. 10. Power spectral densities of transverse displacement of superconducting cavity at different temperatures
    Amplitudes of frequency response function
    Fig. 11. Amplitudes of frequency response function
    工况 Operating conditions

    1~100 Hz位移均方根值

    The root mean square value of 1~100 Hz displacement / μm

    位移均方根放大率

    Displacement root mean square magnification / %

    POST处 At POST超导腔处 At the superconducting cavity
    300.0 K0.195 40.199 72.2
    125.0 K0.201 20.208 83.7
    2.0 K0.213 50.238 311.6
    Table 1. Vertical RMS values for different temperatures
    工况Operating conditions

    1~100 Hz位移均方根值

    The root mean square value of 1~100 Hz displacement / μm

    位移均方根放大率

    Displacement root mean square magnification / %

    POST处At POST超导腔处At the superconducting cavity
    300.0 K0.313 80.342 69.2
    125.0 K0.319 80.370 815.9
    2.0 K0.332 60.454 413.7
    Table 2. Transverse RMS values for different temperatures
    Zhidi LEI, Rongbing DENG, Haixiao DENG, Tingting ZHEN, Fei GAO, Lixin YIN, Yawei HUANG, Yiyong LIU. Experimental study on vibration displacement characteristics of superconducting cavity in cryogenic environment[J]. NUCLEAR TECHNIQUES, 2024, 47(2): 020101
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