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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.

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Axis-encircling electron beam generation using a smooth magnetic cusp for gyrodevices

He, W. and Whyte, C.G. and Rafferty, E.G. and Cross, A.W. and Phelps, A.D.R. and Ronald, K. and Young, A.R. and Robertson, C.W. (2008) Axis-encircling electron beam generation using a smooth magnetic cusp for gyrodevices. Applied Physics Letters, 93 (12). ISSN 0003-6951

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Abstract

The generation of an annular-shaped axis-encircling electron beam using a smooth magnetic cusp was studied through numerical simulations and experiments for harmonic operation of a gyrodevice. Two magnetic coils were used to form a magnetic cusp located just downstream from the velvet cathode of an accelerator diode. An electron beam of current 34 A and voltage 130 kV with an adjustable velocity ratio α up to 1.2 was fully transported to the downstream uniform magnetic field region and used to drive a gyrotron traveling wave amplifier into saturation. (Abstract copied from: http://apl.aip.org/applab/v93/i12)