A cusp electron gun for millimeter wave gyrodevices

C. R. Donaldson; W. He; A.W. Cross; Fengping Li; A.D.R. Phelps; Liang Zhang; Kevin Ronald; Craig Robertson; Colin Whyte; Alan Young

doi:10.1063/1.3374888

A cusp electron gun for millimeter wave gyrodevices

C. R. Donaldson, W. He, A.W. Cross, Fengping Li, A.D.R. Phelps, Liang Zhang, Kevin Ronald, Craig Robertson, Colin Whyte, Alan Young

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Abstract

The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper. Using a "smooth" magnetic field reversal formed by two coils this gun generated an annular-shaped, axis-encircling electron beam with 1.5 A current, and an adjustable velocity ratio alpha of up to 1.56 at a beam voltage of 40 kV. The beam cross-sectional shape and transported beam current were measured by a witness plate technique and Faraday cup, respectively. These measured results were found to be in excellent agreement with the simulated results using the three-dimensional code MAGIC.

Original language	English
Article number	141501
Number of pages	3
Journal	Applied Physics Letters
Volume	96
Issue number	14
DOIs	https://doi.org/10.1063/1.3374888
Publication status	Published - 5 Apr 2010

Keywords

electron guns
gyrotrons
millimetre wave devices
submillimetre wave devices

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10.1063/1.3374888

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title = "A cusp electron gun for millimeter wave gyrodevices",

abstract = "The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper. Using a {"}smooth{"} magnetic field reversal formed by two coils this gun generated an annular-shaped, axis-encircling electron beam with 1.5 A current, and an adjustable velocity ratio alpha of up to 1.56 at a beam voltage of 40 kV. The beam cross-sectional shape and transported beam current were measured by a witness plate technique and Faraday cup, respectively. These measured results were found to be in excellent agreement with the simulated results using the three-dimensional code MAGIC.",

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author = "Donaldson, {C. R.} and W. He and A.W. Cross and Fengping Li and A.D.R. Phelps and Liang Zhang and Kevin Ronald and Craig Robertson and Colin Whyte and Alan Young",

year = "2010",

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volume = "96",

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T1 - A cusp electron gun for millimeter wave gyrodevices

AU - Donaldson, C. R.

AU - He, W.

AU - Cross, A.W.

AU - Li, Fengping

AU - Phelps, A.D.R.

AU - Zhang, Liang

AU - Ronald, Kevin

AU - Robertson, Craig

AU - Whyte, Colin

AU - Young, Alan

PY - 2010/4/5

Y1 - 2010/4/5

N2 - The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper. Using a "smooth" magnetic field reversal formed by two coils this gun generated an annular-shaped, axis-encircling electron beam with 1.5 A current, and an adjustable velocity ratio alpha of up to 1.56 at a beam voltage of 40 kV. The beam cross-sectional shape and transported beam current were measured by a witness plate technique and Faraday cup, respectively. These measured results were found to be in excellent agreement with the simulated results using the three-dimensional code MAGIC.

AB - The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper. Using a "smooth" magnetic field reversal formed by two coils this gun generated an annular-shaped, axis-encircling electron beam with 1.5 A current, and an adjustable velocity ratio alpha of up to 1.56 at a beam voltage of 40 kV. The beam cross-sectional shape and transported beam current were measured by a witness plate technique and Faraday cup, respectively. These measured results were found to be in excellent agreement with the simulated results using the three-dimensional code MAGIC.

KW - electron guns

KW - gyrotrons

KW - millimetre wave devices

KW - submillimetre wave devices

UR - http://www.aip.org/

U2 - 10.1063/1.3374888

DO - 10.1063/1.3374888

M3 - Article

SN - 0003-6951

VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 14

M1 - 141501

ER -

A cusp electron gun for millimeter wave gyrodevices

Abstract

Keywords

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High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing

Compression of frequency modulated pulses using a high order helically corrugated waveguide

IEEE Plasma Science and Applications (PSAC) Award 2017

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A cusp electron gun for millimeter wave gyrodevices

Abstract

Keywords

Access to Document

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Fingerprint

Projects

High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing

Compression of frequency modulated pulses using a high order helically corrugated waveguide

Prizes

IEEE Plasma Science and Applications (PSAC) Award 2017

Cite this