Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Design and simulation of a similar to 390 GHz seventh harmonic gyrotron using a large orbit electron beam

Li, Fengping and He, W. and Cross, A.W. and Donaldson, C.R. and Zhang, Liang and Phelps, A.D.R. and , Faraday Partnership in High Power RF (Funder) and , Scottish Universities Physics Alliance (SUPA) (Funder) and , Overseas Research Students Awards Scheme (ORSAS) (Funder) and Ronald, Kevin (2010) Design and simulation of a similar to 390 GHz seventh harmonic gyrotron using a large orbit electron beam. Journal of Physics D: Applied Physics, 43 (15). p. 155204. ISSN 0022-3727

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A similar to 390 GHz harmonic gyrotron based on a cusp electron gun has been designed and numerically modelled. The gyrotron operates at the seventh harmonic of the electron cyclotron frequency with the beam interacting with a TE71 waveguide mode. Theoretical as well as numerical simulation results using the 3D particle-in-cell code MAGIC are presented. The cusp gun generated an axis-encircling, annular shaped electron beam of energy 40 keV, current 1.5 A with a velocity ratio alpha of 3. Smooth cylindrical waveguides have been studied as the interaction cavities and their cavity Q optimized for 390 GHz operation. In the simulations similar to 600W of output power at the design frequency has been demonstrated.