• High Power Laser and Particle Beams
  • Vol. 35, Issue 8, 083004 (2023)
Linlin Hu, Dimin Sun, Qili Huang*, Tingting Zhuo, Shenggang Gong, Peng Hu, Yi Jiang, Guowu Ma*, Hongbin Chen, and Hongge Ma
Author Affiliations
  • Institute of Applied Electronics, CAEP, Mianyang 621900, China
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    DOI: 10.11884/HPLPB202335.230114 Cite this Article
    Linlin Hu, Dimin Sun, Qili Huang, Tingting Zhuo, Shenggang Gong, Peng Hu, Yi Jiang, Guowu Ma, Hongbin Chen, Hongge Ma. Design and experimental progress of a 105/140 GHz dual-frequency MW-level gyrotron[J]. High Power Laser and Particle Beams, 2023, 35(8): 083004 Copy Citation Text show less
    Design model and components of the 105/140 GHz MW gyrotron
    Fig. 1. Design model and components of the 105/140 GHz MW gyrotron
    Photographs of the 105/140 GHz MW gyrotron and experimental setup
    Fig. 2. Photographs of the 105/140 GHz MW gyrotron and experimental setup
    Thermal paper’s burned patterns of RF beams at the window aperture at 105 GHz and at 140 GHz obtained by a 5 ms short pulse
    Fig. 3. Thermal paper’s burned patterns of RF beams at the window aperture at 105 GHz and at 140 GHz obtained by a 5 ms short pulse
    Pulse test waveforms of output with the 140 GHz/1 MW continuous short-pulse operation
    Fig. 4. Pulse test waveforms of output with the 140 GHz/1 MW continuous short-pulse operation
    Results of pulse extension test of output with 105 GHz /400 kW/1 s
    Fig. 5. Results of pulse extension test of output with 105 GHz /400 kW/1 s
    Results of pulse extension test of output with 105 GHz /300 kW/2 s
    Fig. 6. Results of pulse extension test of output with 105 GHz /300 kW/2 s
    Infrared images at the highest temperature of windows during pulse extension tests
    Fig. 7. Infrared images at the highest temperature of windows during pulse extension tests
    Spectrum of mixing signal of RF beam during a 105 GHz/300 kW/2 s long-pulse operation
    Fig. 8. Spectrum of mixing signal of RF beam during a 105 GHz/300 kW/2 s long-pulse operation
    No.parametervalue
    1 2 3 output power pulse width total beam voltage 1.0 MW continuous wave −81 kV
    4beam current40 A
    5MIGtriode type
    6cavity modeTE18,7@105 GHz; TE24,9@139.3 GHz
    7working magnetic field4.1 T@105 GHz; 5.5 T@140 GHz
    8output modequasi-Gaussian beam
    9windowBN disk for short-pulse operation; CVD diamond for MW-level CW operation
    10collectorsingle-stage depressed collector (SDC)
    11efficiency>30% (45% with SDC)
    Table 1. Design parameters of the 105/140 GHz MW gyrotron
    Linlin Hu, Dimin Sun, Qili Huang, Tingting Zhuo, Shenggang Gong, Peng Hu, Yi Jiang, Guowu Ma, Hongbin Chen, Hongge Ma. Design and experimental progress of a 105/140 GHz dual-frequency MW-level gyrotron[J]. High Power Laser and Particle Beams, 2023, 35(8): 083004
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