High power W-band gyro-BWO experiments

CR Donaldson; L Zhang; W He; P McElhinney; K Ronald; AW Cross; ADR Phelps

doi:10.1109/PLASMA.2015.7179812

High power W-band gyro-BWO experiments

CR Donaldson, L Zhang, W He, P McElhinney, K Ronald, AW Cross, ADR Phelps

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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.

Original language	English
Title of host publication	IEEE International Conference on Plasma Science (ICOPS) 2015
Place of Publication	Piscataway
Publisher	IEEE
Number of pages	1
ISBN (Electronic)	9781479969746
DOIs	https://doi.org/10.1109/PLASMA.2015.7179812
Publication status	Published - 24 May 2015
Event	42nd IEEE International Conference on Plasma Science (ICOPS 2015) - Cornelia Convention Center, Antalya, Turkey Duration: 24 May 2015 → 28 May 2015 http://ece-events.unm.edu/icops2015/

Conference

Conference	42nd IEEE International Conference on Plasma Science (ICOPS 2015)
Abbreviated title	ICOPS 2015
Country	Turkey
City	Antalya
Period	24/05/15 → 28/05/15
Internet address	http://ece-events.unm.edu/icops2015/

Keywords

plasma
millimetre wave generation
millimetre wave source
millimetre-wave
magnetic fields
backward wave oscillators
electron beams
gyrotrons
harmonic analysis

Access to Document

10.1109/PLASMA.2015.7179812

Link to conference pages

Prizes

IEEE Plasma Science and Applications (PSAC) Award 2017

Phelps, Alan (Recipient), 24 May 2017

Prize: Prize (including medals and awards)

Cite this

Donaldson, CR., Zhang, L., He, W., McElhinney, P., Ronald, K., Cross, AW., & Phelps, ADR. (2015). High power W-band gyro-BWO experiments. In IEEE International Conference on Plasma Science (ICOPS) 2015 IEEE. https://doi.org/10.1109/PLASMA.2015.7179812

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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.",

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AU - Zhang, L

AU - He, W

AU - McElhinney, P

AU - Ronald, K

AU - Cross, AW

AU - Phelps, ADR

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AB - 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.

KW - plasma

KW - millimetre wave generation

KW - millimetre wave source

KW - millimetre-wave

KW - magnetic fields

KW - backward wave oscillators

KW - electron beams

KW - gyrotrons

KW - harmonic analysis

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