Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector

He, Wenlong and Donaldson, Craig R. and Zhang, Liang and Ronald, Kevin and Phelps, Alan D. R. and Cross, Adrian W.; Awrejcewicz, Jan, ed. (2011) Numerical Simulation of a Gyro-BWO with a Helically Corrugated Interaction Region, Cusp Electron Gun and Depressed Collector. In: Numerical Simulations of Physical and Engineering Processes. InTech, pp. 101-132. ISBN 9789535144274 (https://doi.org/10.5772/1828)

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Abstract

The gyrotron backward wave oscillator (gyro-BWO) is an efficient source of frequency-tunable high-power coherent radiation in the microwave to the terahertz range. It has attracted significant research interest recently due to its potential applications in many areas such as remote sensing, medical imaging, plasma heating and spectroscopy. A gyro-BWO using a helically corrugated interaction region (HCIR) has achieved an even wider frequency tuning range and higher efficiency compared with a conventional gyro-BWO with a smooth-bore cavity. This is due to the existence of an “ideal”eigenwave in the HCIR with a large and constant group velocity when the axial wave number is small.

ORCID iDs

He, Wenlong ORCID: https://orcid.org/0000-0001-7018-0527

Donaldson, Craig R. ORCID: https://orcid.org/0000-0001-6627-2461

Zhang, Liang ORCID: https://orcid.org/0000-0002-6317-0395

Ronald, Kevin ORCID: https://orcid.org/0000-0002-8585-0746

Phelps, Alan D. R. ORCID: https://orcid.org/0000-0002-1100-1012

Cross, Adrian W. ORCID: https://orcid.org/0000-0001-7672-1283

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• Item metadata

  Item type:	Book Section
  ID code:	39968
  Dates:	Date Event 26 September 2011 Published
  Subjects:	Science > Physics > Plasma physics. Ionized gases
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	08 Jun 2012 13:28
  Last modified:	11 Nov 2024 14:48
  URI:	https://strathprints.strath.ac.uk/id/eprint/39968