High power W-band gyro-BWO experiments

Donaldson, CR and Zhang, L and He, W and McElhinney, P and Ronald, K and Cross, AW and Phelps, ADR (2015) High power W-band gyro-BWO experiments. In: IEEE International Conference on Plasma Science (ICOPS) 2015. IEEE, Piscataway. ISBN 9781479969746

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Abstract

Summary form only given. Experimental results will be presented of a frequency tunable gyrotron backward wave oscillator (gyro-BWO). 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 [1-5]. The gyro-BWO generated a maximum output power of 12 kW when driven by a 40 kV, 1.5 A, annular-shaped large-orbit electron beam and achieved a frequency tuning band of 88-102.5 GHz by adjusting the cavity magnetic field [6]. The performance of the gyro-BWO is in excellent agreement with 3D particle-in-cell (PIC) numerical simulations. Further experimental plans with a quasi-optical mode [7] converter and energy recovery [8] system will be presented.

Author(s):Donaldson, CR ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, Zhang, L ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, He, W ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, McElhinney, P, Ronald, K ORCID logoORCID: https://orcid.org/0000-0002-8585-0746, Cross, AW ORCID logoORCID: https://orcid.org/0000-0001-7672-1283 and Phelps, ADR ORCID logoORCID: https://orcid.org/0000-0002-1100-1012
Item type:Book Section
ID code:59566
Keywords:plasma , millimetre wave generation, millimetre wave source, millimetre-wave, magnetic fields, backward wave oscillators , electron beams, gyrotrons, harmonic analysis , Physics, Atomic and Molecular Physics, and Optics
Subjects:Science > Physics
Department:Faculty of Science > Physics
Depositing user: Pure Administrator
Date deposited:24 Jan 2017 11:25
Last modified:11 Aug 2019 00:17
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URI:https://strathprints.strath.ac.uk/id/eprint/59566
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