High Power Laser and Particle Beams, Volume. 34, Issue 7, 075012(2022)

Simulation of the temperature and thermal deformation of anode targets in high-current diodes

Yang Hu, Dan Cai, Jiang Sun, Jinhai Zhang, Hailiang Yang, Jianfeng Sun, Jiahui Yin, and Yixiang Hu
Author Affiliations
  • Northwest Institute of Nuclear Technology, State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Xi’an 710024, China
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    Figures & Tables(13)
    Schematic of the method of anodes temperature and thermal deformation simulation
    Diagram of the load area of the“Qiangguang-I”accelerator
    Particle images at 10 ns, 15 ns and 30 ns without ions
    Particle images at 10 ns, 15 ns and 30 ns with H+ ions (1014 cm−3)
    Position distributions in r direction of the target with different ions densities
    Incident angle distributions with different ions densities
    Energy deposition profile on the anode target of electrons with different ions densities
    FEM model of the Ta target
    Max tempreture as functions of time of the target surface with r ≤20 mm (0.1 ns~20 s,logarithmic)
    Max tempreture as functions of time of the target surface with r ≤20 mm (0~6 μs)
    Simulation results of the thermal deformation of the target (r≤20 mm) with different ions densities
    • Table 1. Power density of every 0.06 mm depth in the r≤20 mm region

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      Table 1. Power density of every 0.06 mm depth in the r≤20 mm region

      depth/mmthermal power density/(TW/m2)
      no ions1012 ion/cm31014 ion/cm31015 ion/cm3
      0.061.322.228.679.71
      0.121.292.036.707.34
      0.180.951.514.474.93
      0.240.631.072.783.04
      0.300.380.741.621.74
      0.360.220.480.870.93
      0.420.120.290.440.46
      0.480.060.160.200.22
      0.540.030.080.080.09
      0.600.010.030.030.03
    • Table 2. Properties of Ta

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      Table 2. Properties of Ta

      density/ (kg/m3)coefficient of thermal expansion/C−1Young’s modulus/ Pa Poisson’s ratio bulk modulus/Pa shear modulus/Pa thermal conductivity (25 ℃)/(W·m−1·C−1) specific heat (26 ℃)/(J·g−1·K−1)
      166906.5×10−61.86×10110.352.0667×10116.8889×1010540.135
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    Yang Hu, Dan Cai, Jiang Sun, Jinhai Zhang, Hailiang Yang, Jianfeng Sun, Jiahui Yin, Yixiang Hu. Simulation of the temperature and thermal deformation of anode targets in high-current diodes[J]. High Power Laser and Particle Beams, 2022, 34(7): 075012

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    Paper Information

    Category: Pulsed Power Technology

    Received: Oct. 19, 2021

    Accepted: Apr. 22, 2022

    Published Online: Jul. 5, 2022

    The Author Email:

    DOI:10.11884/HPLPB202234.210442

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