liu lei, ruan jiufu, yang jun, et al. Thermal analysis and structural optimization of electron gun for traveling wave tube[J]. High Power Laser and Particle Beams, 2011, 23: 55-56.
Citation:
liu lei, ruan jiufu, yang jun, et al. Thermal analysis and structural optimization of electron gun for traveling wave tube[J]. High Power Laser and Particle Beams, 2011, 23: 55-56.
liu lei, ruan jiufu, yang jun, et al. Thermal analysis and structural optimization of electron gun for traveling wave tube[J]. High Power Laser and Particle Beams, 2011, 23: 55-56.
Citation:
liu lei, ruan jiufu, yang jun, et al. Thermal analysis and structural optimization of electron gun for traveling wave tube[J]. High Power Laser and Particle Beams, 2011, 23: 55-56.
National Engineering Laboratory of Special Display Technology,National Key Laboratory of Advanced Display Technology,Key Laboratory of Special Display Technology of Ministry of Education,Hefei 230009,China;
2.
School of Instrument Science and Opto-Electronic Engineering,Hefei University of Technology,Hefei 230009,China;
3.
Academy of Photoelectric Technology,Hefei University of Technology,Hefei 230009,China;
Steady-state and transient thermal analysis of electron gun for a Ka-band traveling wave tube are theoretically performed with a newly-developed 2 mm cathode model by ANSYS software. The heat flux vector chart and temperature distribution chart as well as warm-up time are also derived. The discrepancy of 2% between simulation results and test results, proves that the finite element method is feasible. The ultimate temperature reached by cathode, at given heater power, remarkably depends on the thermal conduction mechanism through cathode module. Based on the heat flux vector chart, the structure of cathode support sleeve with the highest heat flux is optimized. After optimization, the temperature of cathode increases 28 ℃, the highest temperature of electron gun increases 27 ℃
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