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Proceedings Paper

Experimental study of a relativistic peniotron
Author(s): K. Sakamoto
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Paper Abstract

The peniotron is an electron cyclotron resonance device in which RF radiation can be amplified byextracting the kinetic energy of a hollow rotating electron beam. The peniotron is unique among allelectron tube devices because electron bunching is not essential in its operation mechanism and so eachelectron loses its kinetic energy independently. Therefore for an optimized device high electronicefficiency can be realized, especially in the auto-resonance mode, where electronic efficiency close to100% has been predicted(1). The peniotron is suitable for high power generation because its wave guidecircuit is simple. Operation at high cyclotron harmonics is also possible, resulting in generation of highfrequencies in the millimeter and sub-millimeter wave regions at relatively low values of DC magneticfield. Although experimental work has been reported on efficient operation for peniotrons with low beamenergies under 50 KeV(2),(3), performance at relativistic energies over 500 keV still remainsexperimentally unexplored. We have taken up this challenge and so we have set out to develop arelativistic peniotron in our laboratory, where an induction linac driven electron beam of 3 kA can begenerated with energy of 1 MeV. We have completed the design of a prototype peniotron oscillator deviceand done some preliminary experiments where we obtained a strong RF radiation of 7 MW at 5 GHz

Paper Details

Date Published: 30 August 1993
PDF: 2 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21045Q (30 August 1993); doi: 10.1117/12.2298638
Show Author Affiliations
K. Sakamoto, Japan Atomic Energy Research Institute (Japan)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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