Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices

Craig Donaldson; Wenlong He; A.W. Cross; A.D.R. Phelps; Fengping Li; K. Ronald; C.W. Robertson; C.G. Whyte; A.R. Young

doi:10.1109/TPS.2009.2031470

Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices

Craig Donaldson, Wenlong He, A.W. Cross, A.D.R. Phelps, Fengping Li, K. Ronald, C.W. Robertson, C.G. Whyte, A.R. Young

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

65 Citations (Scopus)

Abstract

A novel thermionic cusp electron gun operating in the temperature-limited regime that produces a large-orbit electron beam through a nonadiabatic magnetic-field reversal was designed, analyzed, and optimized to give an electron-beam ideal for driving gyro-devices, particularly in the millimeter-to-submillimeter-wavelength range due to its small cross-sectional size. The annular-shaped axis-encircling electron beam had a beam current of 1.5 A at an acceleration potential of 40 kV, a tunable velocity ratio alpha (= vperp/vz) between one and three, an optimized axial velocity spread A.vx/vz of ~8%, and a relative alpha spread Deltakappa/alpha of ~10% at an alpha value of 1.65.

Original language	English
Pages (from-to)	2153-2157
Number of pages	4
Journal	IEEE Transactions on Plasma Science
Volume	37
Issue number	11
DOIs	https://doi.org/10.1109/TPS.2009.2031470
Publication status	Published - 6 Nov 2009

Keywords

axis-encircling electron beam
cusp electron gun
gyro-BWO
gyro-TWT
high-harmonic gyrotron
THz electron-beam source
W-band

Access to Document

10.1109/TPS.2009.2031470

High Power MM And Sub-MM Wave Amplifiers For High Frequency ESR/DNP, High Resolution Radar and Remote Sensing
Phelps, A. (Principal Investigator), Cross, A. (Co-investigator), Ronald, K. (Co-investigator) & Donaldson, C. (Researcher)
EPSRC (Engineering and Physical Sciences Research Council)
1/04/09 → 31/03/13
Project: Research
Compression of frequency modulated pulses using a high order helically corrugated waveguide
Cross, A. (Principal Investigator), Phelps, A. (Co-investigator), Ronald, K. (Co-investigator) & Zhang, L. (Researcher)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/06 → 30/09/10
Project: Research

Cite this

@article{9eb34c478b424a2b9a45a4f1fdb83866,

title = "Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices",

abstract = "A novel thermionic cusp electron gun operating in the temperature-limited regime that produces a large-orbit electron beam through a nonadiabatic magnetic-field reversal was designed, analyzed, and optimized to give an electron-beam ideal for driving gyro-devices, particularly in the millimeter-to-submillimeter-wavelength range due to its small cross-sectional size. The annular-shaped axis-encircling electron beam had a beam current of 1.5 A at an acceleration potential of 40 kV, a tunable velocity ratio alpha (= vperp/vz) between one and three, an optimized axial velocity spread A.vx/vz of ~8%, and a relative alpha spread Deltakappa/alpha of ~10% at an alpha value of 1.65.",

keywords = "axis-encircling electron beam, cusp electron gun, gyro-BWO, gyro-TWT, high-harmonic gyrotron, THz electron-beam source, W-band",

author = "Craig Donaldson and Wenlong He and A.W. Cross and A.D.R. Phelps and Fengping Li and K. Ronald and C.W. Robertson and C.G. Whyte and A.R. Young",

note = "Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.",

year = "2009",

month = nov,

day = "6",

doi = "10.1109/TPS.2009.2031470",

language = "English",

volume = "37",

pages = "2153--2157",

journal = "IEEE Transactions on Plasma Science",

issn = "0093-3813",

number = "11",

}

TY - JOUR

T1 - Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices

AU - Donaldson, Craig

AU - He, Wenlong

AU - Cross, A.W.

AU - Phelps, A.D.R.

AU - Li, Fengping

AU - Ronald, K.

AU - Robertson, C.W.

AU - Whyte, C.G.

AU - Young, A.R.

N1 - Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.

PY - 2009/11/6

Y1 - 2009/11/6

N2 - A novel thermionic cusp electron gun operating in the temperature-limited regime that produces a large-orbit electron beam through a nonadiabatic magnetic-field reversal was designed, analyzed, and optimized to give an electron-beam ideal for driving gyro-devices, particularly in the millimeter-to-submillimeter-wavelength range due to its small cross-sectional size. The annular-shaped axis-encircling electron beam had a beam current of 1.5 A at an acceleration potential of 40 kV, a tunable velocity ratio alpha (= vperp/vz) between one and three, an optimized axial velocity spread A.vx/vz of ~8%, and a relative alpha spread Deltakappa/alpha of ~10% at an alpha value of 1.65.

AB - A novel thermionic cusp electron gun operating in the temperature-limited regime that produces a large-orbit electron beam through a nonadiabatic magnetic-field reversal was designed, analyzed, and optimized to give an electron-beam ideal for driving gyro-devices, particularly in the millimeter-to-submillimeter-wavelength range due to its small cross-sectional size. The annular-shaped axis-encircling electron beam had a beam current of 1.5 A at an acceleration potential of 40 kV, a tunable velocity ratio alpha (= vperp/vz) between one and three, an optimized axial velocity spread A.vx/vz of ~8%, and a relative alpha spread Deltakappa/alpha of ~10% at an alpha value of 1.65.

KW - axis-encircling electron beam

KW - cusp electron gun

KW - gyro-BWO

KW - gyro-TWT

KW - high-harmonic gyrotron

KW - THz electron-beam source

KW - W-band

U2 - 10.1109/TPS.2009.2031470

DO - 10.1109/TPS.2009.2031470

M3 - Article

SN - 0093-3813

VL - 37

SP - 2153

EP - 2157

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 11

ER -

Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices

Abstract

Keywords

Access to Document

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

Cite this