Design of an Electron Gun for a 280-GHz Induced-Resonance-Electron-Cyclotron (IREC) Maser Experiment

Robert B. McCowan; R. A. Pendleton; Arne W. Fliflet

doi:10.1109/16.141245

Design of an Electron Gun for a 280-GHz Induced-Resonance-Electron-Cyclotron (IREC) Maser Experiment

Robert B. McCowan, R. A. Pendleton, Arne W. Fliflet

Research output: Contribution to journal › Article › peer-review

Abstract

A thermionic electron gun capable of generating a high-quality annular electron beam for quasi-optical CARM and induced-resonance-electron-cyclotron (IREC) maser applications has been designed. The 500-kV, 200-A MIG-type electron gun has a curved emitting surface designed to compensate for radial electric field gradients across the cathode, and should produce an electron beam with v_±/v_z~ 0.5 and Av_z/v_z< 1%. The gun is also capable of producing an electron beam suitable for a multimegawatt 250-kV, 100-GHz quasi-optical gyrotron. Results are presented for electron trajectory calculations which have been performed for both the CARM/IREC maser and gyrotron operating regimes.

Original language	English (US)
Pages (from-to)	1763-1767
Number of pages	5
Journal	IEEE Transactions on Electron Devices
Volume	39
Issue number	7
DOIs	https://doi.org/10.1109/16.141245
State	Published - Jul 1992
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/16.141245

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title = "Design of an Electron Gun for a 280-GHz Induced-Resonance-Electron-Cyclotron (IREC) Maser Experiment",

abstract = "A thermionic electron gun capable of generating a high-quality annular electron beam for quasi-optical CARM and induced-resonance-electron-cyclotron (IREC) maser applications has been designed. The 500-kV, 200-A MIG-type electron gun has a curved emitting surface designed to compensate for radial electric field gradients across the cathode, and should produce an electron beam with v±/vz~ 0.5 and Avz/vz< 1%. The gun is also capable of producing an electron beam suitable for a multimegawatt 250-kV, 100-GHz quasi-optical gyrotron. Results are presented for electron trajectory calculations which have been performed for both the CARM/IREC maser and gyrotron operating regimes.",

author = "McCowan, {Robert B.} and Pendleton, {R. A.} and Fliflet, {Arne W.}",

note = "Funding Information: Manuscript received November 26, 1990; revised December 10, 1991. This work was supported by the U.S. Office of Naval Research. The review of this paper was arranged by Associate Editor R. Temkin. R. B. McCowan was with the Radiation and Particle Beam Generation Section, Plasma Physics Division,{\textquoteright} Naval Research Laboratory, Washington, DC 20375. He is now with Varian Associates, Inc., Beverly, MA. R. A. Pendleton was with Varian Associates, Inc., Palo Alto, CA 94304-1031. He is now with Stanford Linear Accelerator Center, Palo Alto, CA. A. W. Fliflet is with the Radiation and Particle Beam Generation Section, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375. IEEE Log Number 9200393.",

year = "1992",

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AU - Fliflet, Arne W.

N1 - Funding Information: Manuscript received November 26, 1990; revised December 10, 1991. This work was supported by the U.S. Office of Naval Research. The review of this paper was arranged by Associate Editor R. Temkin. R. B. McCowan was with the Radiation and Particle Beam Generation Section, Plasma Physics Division,’ Naval Research Laboratory, Washington, DC 20375. He is now with Varian Associates, Inc., Beverly, MA. R. A. Pendleton was with Varian Associates, Inc., Palo Alto, CA 94304-1031. He is now with Stanford Linear Accelerator Center, Palo Alto, CA. A. W. Fliflet is with the Radiation and Particle Beam Generation Section, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375. IEEE Log Number 9200393.

PY - 1992/7

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N2 - A thermionic electron gun capable of generating a high-quality annular electron beam for quasi-optical CARM and induced-resonance-electron-cyclotron (IREC) maser applications has been designed. The 500-kV, 200-A MIG-type electron gun has a curved emitting surface designed to compensate for radial electric field gradients across the cathode, and should produce an electron beam with v±/vz~ 0.5 and Avz/vz< 1%. The gun is also capable of producing an electron beam suitable for a multimegawatt 250-kV, 100-GHz quasi-optical gyrotron. Results are presented for electron trajectory calculations which have been performed for both the CARM/IREC maser and gyrotron operating regimes.

AB - A thermionic electron gun capable of generating a high-quality annular electron beam for quasi-optical CARM and induced-resonance-electron-cyclotron (IREC) maser applications has been designed. The 500-kV, 200-A MIG-type electron gun has a curved emitting surface designed to compensate for radial electric field gradients across the cathode, and should produce an electron beam with v±/vz~ 0.5 and Avz/vz< 1%. The gun is also capable of producing an electron beam suitable for a multimegawatt 250-kV, 100-GHz quasi-optical gyrotron. Results are presented for electron trajectory calculations which have been performed for both the CARM/IREC maser and gyrotron operating regimes.

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Design of an Electron Gun for a 280-GHz Induced-Resonance-Electron-Cyclotron (IREC) Maser Experiment

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