Ming-Zhe YANG, Xiao-Xia WANG, Yu FAN, Ming-Feng MENG, Chen YANG, Cha GAO, Ji-Run LUO. Temperature uniformity and thermal deformation analysis of the cathode with radiation heating in the magnetron injection electron gun[J]. Journal of Infrared and Millimeter Waves, 2023, 42(2): 208
- Journal of Infrared and Millimeter Waves
- Vol. 42, Issue 2, 208 (2023)
Fig. 1. The schematic view of electron gun and cathode emitter,(a) the structure of electron gun，(b) the structure of cathode emitter
Fig. 2. The maximum temperature of the emitter changing with heating power
Fig. 3. Temperature distribution of electron gun, cathode body and cathode emitter,(a) temperature distribution of electron gun, (b) temperature distribution of cathode body, (c) temperature distribution of cathode emitter
Fig. 4. Heater structure
Fig. 5. Temperature difference on the cathode emitter surface with different heater parameters,(a) heater pitch, (b) heater winding radius, (c) heater position
Fig. 6. Thermal deformation distribution of electron gun and cathode emitter in the axial direction
Fig. 7. Thermal deformation distribution of electron gun and cathode emitter in the radial direction
Fig. 8. Temperature distribution of electron gun and first anode
Fig. 9. The 2D trajectory of electron beam
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Table 1. Parameters of the electron gun
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Table 2. Material parameters
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Table 3. Temperature difference of cathode emitter varying with heater position
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Table 4. Variation of electron beam parameters before and after electron gun deformation
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Table 5. Measured and simulated data
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