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Abstract
A similar to 390 GHz harmonic gyrotron based on a cusp electron gun has been designed and numerically modelled. The gyrotron operates at the seventh harmonic of the electron cyclotron frequency with the beam interacting with a TE71 waveguide mode. Theoretical as well as numerical simulation results using the 3D particle-in-cell code MAGIC are presented. The cusp gun generated an axis-encircling, annular shaped electron beam of energy 40 keV, current 1.5 A with a velocity ratio alpha of 3. Smooth cylindrical waveguides have been studied as the interaction cavities and their cavity Q optimized for 390 GHz operation. In the simulations similar to 600W of output power at the design frequency has been demonstrated.
Original language | English |
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Pages (from-to) | 155204 |
Number of pages | 6 |
Journal | Journal of Physics D: Applied Physics |
Volume | 43 |
Issue number | 15 |
DOIs | |
Publication status | Published - 30 Mar 2010 |
Keywords
- twt amplifier
- maser
- accelerator beams
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Dive into the research topics of 'Design and simulation of a 390 GHz seventh harmonic gyrotron using a large orbit electron beam'. Together they form a unique fingerprint.Projects
- 2 Finished
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High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing
Phelps, A. (Principal Investigator), Cross, A. (Co-investigator), Ronald, K. (Co-investigator) & Donaldson, C. (Researcher)
EPSRC (Engineering and Physical Sciences Research Council)
1/04/09 → 31/03/13
Project: Research
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Compression of frequency modulated pulses using a high order helically corrugated waveguide
Cross, A. (Principal Investigator), Phelps, A. (Co-investigator), Ronald, K. (Co-investigator) & Zhang, L. (Researcher)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/06 → 30/09/10
Project: Research