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Abstract
Experimental results are presented of the first successful gyrotron backward wave oscillator (gyro-BWO) in the low terahertz region. A helically corrugated interaction region (HCIR) was used to allow efficient interaction over a wide frequency band at the second harmonic of the electron cyclotron frequency without parasitic output. The gyro-BWO was measured to generate a maximum output power of 12 kW in a continuous frequency tuning band of 88-102.5 GHz when driven by a 40 kV, 1.5 A, annular-shaped large-orbit electron beam. The performance of the gyro-BWO is consistent with 3D particle-in-cell (PIC) numerical simulations.
Original language | English |
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Article number | 165101 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 16 |
Early online date | 15 Apr 2013 |
DOIs | |
Publication status | Published - 15 Apr 2013 |
Keywords
- gyrotron backward wave oscillator
- wideband
- oscillator
- terahertz region
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Dive into the research topics of 'High power wideband gyrotron backward wave oscillator operating towards the terahertz region'. Together they form a unique fingerprint.Projects
- 1 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., Cross, A., Ronald, K. & Donaldson, C.
EPSRC (Engineering and Physical Sciences Research Council)
1/04/09 → 31/03/13
Project: Research