Particle simulation of a ka-band gyrotron traveling wave amplifier

Journal Article · Mon Aug 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3620402· OSTI ID:22043433

Shouxi, Xu; Pukun, Liu; Shichang, Zhang; Chaohai, Du; Qianzhong, Xue; Zhihui, Geng; Yinong, Su ^[1]

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1. Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, P.O. Box 2652, Beijing 100190 (China)

The design of a ka-band gyrotron traveling wave (gyro-TWT) amplifier is presented. The gyro-TWT amplifier with a severed structure operates in the fundamental harmonic TE{sub 01} circular electric mode. The beam-wave interaction is studied by using a particle-in-cell (PIC) code. The simulations predict that the amplifier can produce an output peak power of over 155 kW, 22% efficiency, 23 dB gain, and a 3 dB bandwidth of 2 GHz for a 70 kV, 10 A electron beam with an axial velocity spread {Delta}v{sub z}/v{sub z}=5%.

• OSTI ID: 22043433
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 18; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
DESIGN
ELECTRON BEAMS
GAIN
GHZ RANGE
INTERACTIONS
MICROWAVE AMPLIFIERS
PLASMA
PLASMA SIMULATION
TRAVELLING WAVES
VELOCITY