Acta Optica Sinica, Volume. 42, Issue 23, 2314002(2022)

Cable Coupling Effect of Compound Chamber Environment in Laser Inertial Confinement Fusion Driver

Maoxing Zhang1,2、*, Cui Meng1,2、**, Zhiqian Xu1,2, Ping Wu1,2, and Meiqing Zhong1,2
Author Affiliations
  • 1Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • 2Key Laboratory of Particle and Radiation Imaging of Ministry of Education, Beijing 100084, China
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    Figures & Tables(20)
    Schematic diagram of cable model
    Transmission line model of cable SGEMP
    Model of cable exposed to electromagnetic pulse in CST
    Equivalent current source amplitude varying with radius of shielding layer
    Equivalent current source amplitude varying with X-ray energy
    Time-domain waveform of incident electromagnetic pulse
    Frequency-domain waveform of incident electromagnetic pulse
    Time-domain waveform of core-wire coupled current. (a) Unshielded; (b) monolayer shielded; (c) bilayer shielded
    Structural diagram of RG142 cable
    Structural diagram of CERN SPA6 cable
    Calculation results of equivalent current source
    Voltage waveforms of cable termination loads
    Simulation results of cable electromagnetic radiation coupling voltage. (a) RG142; (b) CERN SPA6
    Schematic diagram of cable irradiation experiment
    Experimental measurement results of cable terminal load voltage
    Internal schematic diagram and cross-sectional micrograph of cable[30]. (a) Schematic diagram of existence of gap inside cable; (b) micrograph of cable cross-section
    Normalized X-ray response with air gap in cable[11]
    • Table 1. Photoelectric yield under different outer radii of shielding layer

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      Table 1. Photoelectric yield under different outer radii of shielding layer

      Photoelectric yield1.7 mm1.8 mm1.9 mm2.0 mm2.1 mm
      Core wire emission /10-46.334.863.762.802.10
      Dielectric layer deposition /10-3-3.34-2.42-1.79-1.35-0.978
    • Table 2. Photoelectric yield under different X-ray energies

      View table

      Table 2. Photoelectric yield under different X-ray energies

      Photoelectric yield30 keV35 keV40 keV45 keV50 keV
      Core wire emission1.0×10-55.18×10-51.33×10-42.34×10-42.80×10-4
      Dielectric layer deposition-3.0×10-5-1.94×10-4-5.16×10-4-9.48×10-4-1.35×10-3
    • Table 3. Structural parameters of different cables

      View table

      Table 3. Structural parameters of different cables

      ParameterCERN SPA6RG142
      Core wire radius /mm0.250.47
      Core wire materialCopperSilver plated copper clad steel
      Dielectric layer radius /mm0.8501.475
      Dielectric layer materialXPEPTFE
      Shielding layer radius /mm1.101.98
      Shielding layer materialCopperDouble layer silver plated copper braid
      Sheath radius /mm1.6002.475
      Sheath materialFRNCFEP
      Inner diameter of outer shielding layer /mm3.2
      Outer diameter of outer shielding layer /mm3.9
      Outer shielding layer materialCopper
      Outer sheath radius /mm5.5
      Outer sheath materialFRNC
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    Maoxing Zhang, Cui Meng, Zhiqian Xu, Ping Wu, Meiqing Zhong. Cable Coupling Effect of Compound Chamber Environment in Laser Inertial Confinement Fusion Driver[J]. Acta Optica Sinica, 2022, 42(23): 2314002

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Mar. 11, 2022

    Accepted: Jun. 7, 2022

    Published Online: Dec. 14, 2022

    The Author Email: Zhang Maoxing (zhang-mx19@mails.tsinghua.edu.cn), Meng Cui (mengcui@mail.tsinghua.edu.cn)

    DOI:10.3788/AOS202242.2314002

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