Picture of aircraft jet engine

Strathclyde research that powers aerospace engineering...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers involved in aerospace engineering and from the Advanced Space Concepts Laboratory - but also other internationally significant research from within the Department of Mechanical & Aerospace Engineering. Discover why Strathclyde is powering international aerospace research...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

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

Donaldson, Craig and He, Wenlong and Cross, A.W. and Phelps, A.D.R. and Li, Fengping and Ronald, K. and Robertson, C.W. and Whyte, C.G. and Young, A.R. (2009) Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices. IEEE Transactions on Plasma Science, 37 (11). pp. 2153-2157. ISSN 0093-3813

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

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.