Experiment and Simulation of a W-Band CW 30 kW Low-Voltage Conventional Gyrotron

In this paper, a continuous wave (CW) low-voltage fundamental harmonic W-band gyrotron has been designed and simulated with the help of a particle-in-cell (PIC) software CHIPIC. The output power of 33.4 kW with an electron efficiency 37.1% in the PIC simulation is obtained by the designed convention...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2014-06, Vol.61 (6), p.1789-1794
Main Authors: Geng, Zhi Hui, Su, Yi Nong, Liu, Pu Kun, Xu, Shou Xi, Gu, Wei, Liu, Gao Feng, Du, Chao Hai, Wang, Hu
Format: Article
Language:English
Subjects:
Accumulators
Cavity resonators
Collectors
Density
Density measurement
Electron beams
gyrotron
Gyrotrons
low-voltage
Oscillators
Particle in cell technique
Plasma
Power generation
Power system measurements
Simulation
W-band
Walls
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Summary:In this paper, a continuous wave (CW) low-voltage fundamental harmonic W-band gyrotron has been designed and simulated with the help of a particle-in-cell (PIC) software CHIPIC. The output power of 33.4 kW with an electron efficiency 37.1% in the PIC simulation is obtained by the designed conventional gyrotron employing a 30-kV, 3-A electron beam which is produced by a triode magnetron injection gun. In addition, a high-power capacity collector being one of the key components of CW gyrotrons has been evaluated and tested. The peak power density on the collector wall using the spreading electron system is about 390 W/cm 2 in the hot test. The CW output power of 15.8 kW is achieved with the condition of a 29-kV, 1.8-A electron beam in the hot-test experiment of the designed prototype.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2013.2295269