A 35-GHz low-voltage third-harmonic gyrotron with a permanent magnet system

A systematic theoretical and experimental study on a 35-GHz 45-kV third-harmonic gyrotron with a permanent magnet system is presented in this paper. A complex cavity with gradual transition and a diode magnetron injection gun (MIG) are employed in the gyrotron. A self-consistent field nonlinear theo...

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Published in:IEEE transactions on plasma science 2003-04, Vol.31 (2), p.264-271
Main Authors: Li, Hongfu, Xie, Zhong-Lian, Wang, Wenxiang, Luo, Yong, Du, Pinzhong, Den, Xue, Wang, Huajun, Yu, Sheng, Niu, Xinjian, Wang, Li, Liu, Shenggang
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Language:English
Subjects:
Applied sciences
Computer programming
Computer simulation
Diodes
Electric potential
Electron beams
Electronic tubes, masers
Electronics
Exact sciences and technology
Gyrotrons
Holes
Magnetic fields
Masers
gyrotrons (cyclotron-resonance masers)
MICR encoding
Numerical simulation
Permanent magnets
Power generation
Radio frequency
Surge protectors
System testing
Voltage
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cited_by cdi_FETCH-LOGICAL-c379t-703aeec126a0fbc10cdba3133a0acf2dd9d081cd43132487e00947ef15764f393
cites cdi_FETCH-LOGICAL-c379t-703aeec126a0fbc10cdba3133a0acf2dd9d081cd43132487e00947ef15764f393
container_end_page 271
container_issue 2
container_start_page 264
container_title IEEE transactions on plasma science
container_volume 31
creator Li, Hongfu
Xie, Zhong-Lian
Wang, Wenxiang
Luo, Yong
Du, Pinzhong
Den, Xue
Wang, Huajun
Yu, Sheng
Niu, Xinjian
Wang, Li
Liu, Shenggang
description A systematic theoretical and experimental study on a 35-GHz 45-kV third-harmonic gyrotron with a permanent magnet system is presented in this paper. A complex cavity with gradual transition and a diode magnetron injection gun (MIG) are employed in the gyrotron. A self-consistent field nonlinear theoretical investigation and numerical simulation for electron beam interaction with RF fields are given. The diode MIG is simulated numerically utilizing our code in detail. The permanent magnet system provided the maximum axial magnetic field of about 4.5 kG in the cavity region of the gyrotron. The Ka band third-harmonic complex cavity gyrotron with a permanent magnet system has been designed, constructed, and tested. A pulse output power of 147.3 kW was obtained at a beam voltage of 45 kV with beam current of 32.2 A, corresponding to an efficiency of 10.2%.
doi_str_mv 10.1109/TPS.2003.810732
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source IEEE Electronic Library (IEL) Journals
subjects Applied sciences
Computer programming
Computer simulation
Diodes
Electric potential
Electron beams
Electronic tubes, masers
Electronics
Exact sciences and technology
Gyrotrons
Holes
Magnetic fields
Masers
gyrotrons (cyclotron-resonance masers)
MICR encoding
Numerical simulation
Permanent magnets
Power generation
Radio frequency
Surge protectors
System testing
Voltage
title A 35-GHz low-voltage third-harmonic gyrotron with a permanent magnet system
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