W-band gyro-BWO with a four-stage depressed collector
Zhang, Liang and He, Wenlong and Donaldson, Craig R. and Cross, Adrian W. and Phelps, Alan D. R. and McElhinney, Paul and Ronald, Kevin (2011) W-band gyro-BWO with a four-stage depressed collector. Terahertz Science & Technology, 4 (3). pp. 76-84. (https://doi.org/10.11906/TST.076-084.2011.09.10)
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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. The heat power distribution on the electrodes was also simulated to avoid the “hot spot”.
ORCID iDs
Zhang, Liang ORCID: https://orcid.org/0000-0002-6317-0395, He, Wenlong ORCID: https://orcid.org/0000-0001-7018-0527, Donaldson, Craig R. ORCID: https://orcid.org/0000-0001-6627-2461, Cross, Adrian W. ORCID: https://orcid.org/0000-0001-7672-1283, Phelps, Alan D. R. ORCID: https://orcid.org/0000-0002-1100-1012, McElhinney, Paul and Ronald, Kevin ORCID: https://orcid.org/0000-0002-8585-0746;-
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Item type: Article ID code: 52340 Dates: DateEvent30 September 2011PublishedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 31 Mar 2015 07:22 Last modified: 29 Nov 2024 01:09 URI: https://strathprints.strath.ac.uk/id/eprint/52340