A four-stage depressed collector for a W-band gyro-BWO

Liang Zhang; Wenlong He; Craig R. Donaldson; Adrian W. Cross; Alan D. R. Phelps; Kevin Ronald

doi:10.1109/irmmw-THz.2011.6104929

A four-stage depressed collector for a W-band gyro-BWO

Liang Zhang, Wenlong He, Craig R. Donaldson, Adrian W. Cross, Alan D. R. Phelps, Kevin Ronald

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

Abstract

An energy recovery system using a four-stage depressed collector was simulated and designed to improve the overall efficiency of the W-band gyrotron backward wave oscillator (gyro-BWO) at the University of Strathclyde. The spent beam information was exported from the simulation of the gyro-BWO using the 3D PIC code MAGIC. The geometry of the depressed collector was optimized using a genetic algorithm to achieve the optimum overall recovery efficiency for specific parameters of the spent beam. Secondary electron emissions and their effects on the recovery efficiency and the backstreaming of the electrons from the collector region were simulated.

Original language	English
Title of host publication	2011 International Conference on Infrared, Millimeter, and Terahertz Waves
Publisher	IEEE
Number of pages	2
ISBN (Print)	9781457705106
DOIs	https://doi.org/10.1109/irmmw-THz.2011.6104929
Publication status	Published - 15 Dec 2011
Event	IRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves - Hyatt Regency Downtown, Houston, TX, United States Duration: 2 Oct 2011 → 7 Oct 2011 http://www.irmmw-thz.org/past_conf/index.html

Conference

Conference	IRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves
Abbreviated title	IRMMW-THz 2011
Country/Territory	United States
City	Houston, TX
Period	2/10/11 → 7/10/11
Internet address	http://www.irmmw-thz.org/past_conf/index.html

Keywords

electrodes
helium
electromagnetic heating
kinetic energy
electric potential
electron beams
backward wave oscillators
genetic algorithms
geometry
gyrotrons
secondary electron emission

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10.1109/irmmw-THz.2011.6104929Licence: Unspecified

Cite this

@inproceedings{62bb5a949aa549278218b3948ae9ed6a,

title = "A four-stage depressed collector for a W-band gyro-BWO",

abstract = "An energy recovery system using a four-stage depressed collector was simulated and designed to improve the overall efficiency of the W-band gyrotron backward wave oscillator (gyro-BWO) at the University of Strathclyde. The spent beam information was exported from the simulation of the gyro-BWO using the 3D PIC code MAGIC. The geometry of the depressed collector was optimized using a genetic algorithm to achieve the optimum overall recovery efficiency for specific parameters of the spent beam. Secondary electron emissions and their effects on the recovery efficiency and the backstreaming of the electrons from the collector region were simulated.",

keywords = "electrodes, helium, electromagnetic heating, kinetic energy, electric potential, electron beams, backward wave oscillators, genetic algorithms, geometry, gyrotrons, secondary electron emission",

author = "Liang Zhang and Wenlong He and Donaldson, {Craig R.} and Cross, {Adrian W.} and Phelps, {Alan D. R.} and Kevin Ronald",

year = "2011",

month = dec,

day = "15",

doi = "10.1109/irmmw-THz.2011.6104929",

language = "English",

isbn = "9781457705106",

booktitle = "2011 International Conference on Infrared, Millimeter, and Terahertz Waves",

publisher = "IEEE",

note = "IRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011 ; Conference date: 02-10-2011 Through 07-10-2011",

url = "http://www.irmmw-thz.org/past_conf/index.html",

}

Zhang, L, He, W, Donaldson, CR , Cross, AW , Phelps, ADR & Ronald, K 2011, A four-stage depressed collector for a W-band gyro-BWO. in 2011 International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, IRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves, Houston, TX, United States, 2/10/11. https://doi.org/10.1109/irmmw-THz.2011.6104929

TY - GEN

T1 - A four-stage depressed collector for a W-band gyro-BWO

AU - Zhang, Liang

AU - He, Wenlong

AU - Donaldson, Craig R.

AU - Cross, Adrian W.

AU - Phelps, Alan D. R.

AU - Ronald, Kevin

PY - 2011/12/15

Y1 - 2011/12/15

N2 - An energy recovery system using a four-stage depressed collector was simulated and designed to improve the overall efficiency of the W-band gyrotron backward wave oscillator (gyro-BWO) at the University of Strathclyde. The spent beam information was exported from the simulation of the gyro-BWO using the 3D PIC code MAGIC. The geometry of the depressed collector was optimized using a genetic algorithm to achieve the optimum overall recovery efficiency for specific parameters of the spent beam. Secondary electron emissions and their effects on the recovery efficiency and the backstreaming of the electrons from the collector region were simulated.

AB - An energy recovery system using a four-stage depressed collector was simulated and designed to improve the overall efficiency of the W-band gyrotron backward wave oscillator (gyro-BWO) at the University of Strathclyde. The spent beam information was exported from the simulation of the gyro-BWO using the 3D PIC code MAGIC. The geometry of the depressed collector was optimized using a genetic algorithm to achieve the optimum overall recovery efficiency for specific parameters of the spent beam. Secondary electron emissions and their effects on the recovery efficiency and the backstreaming of the electrons from the collector region were simulated.

KW - electrodes

KW - helium

KW - electromagnetic heating

KW - kinetic energy

KW - electric potential

KW - electron beams

KW - backward wave oscillators

KW - genetic algorithms

KW - geometry

KW - gyrotrons

KW - secondary electron emission

U2 - 10.1109/irmmw-THz.2011.6104929

DO - 10.1109/irmmw-THz.2011.6104929

M3 - Conference contribution book

SN - 9781457705106

BT - 2011 International Conference on Infrared, Millimeter, and Terahertz Waves

PB - IEEE

T2 - IRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves

Y2 - 2 October 2011 through 7 October 2011

ER -

A four-stage depressed collector for a W-band gyro-BWO

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