NDLI: Relativistic gyrotron at the 5th cyclotron harmonic

Content Provider	IEEE Xplore Digital Library
Author	Bratman, V.L. Grom, Yu.D. Kalynov, Yu.K. Manuilov, V.N. Ofitserov, M.M. Samsonov, S.V.
Copyright Year	1998
Description	Author affiliation: Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia (Bratman, V.L.)
Abstract	A moderately relativistic high-harmonic Large Orbit Gyrotron (LOG) has been considered as a source of high power radiation in the millimeter/submillimeter wavelength range. The experiments on a LOG designed to operate at 5th cyclotron harmonic at the wavelength of 2 mm with output power of 50-100 kW are in progress. The LOG electron-optical system with a thermionic cathode is constructed and checked experimentally. It produces a thin rectilinear electron beam with an energy of 250 keV, current of 18 A, pulse duration of 10 /spl mu/s and diameter of 0.6 mm in an axial magnetic field of 16 kG. A pumping system transforms the straight beam into a beam of electrons gyrating around the axis with a velocity ratio of 1.5 and sufficiently small velocity spread. A possibility of selective excitation of the 5th cyclotron harmonic at the wavelength of 4 mm has been proved in a short-pulse experiment on LOG driven by 300 keV/30 A/20 ns electron beam.
Starting Page	191
Ending Page	193
File Size	291147
Page Count	3
File Format	PDF
ISBN	0780355539
DOI	10.1109/MSMW.1998.758948
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-09-17
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gyrotrons Cyclotrons Electron beams Magnetic fields Magnetic resonance Power system harmonics Cathodes Structural beams Physics Power generation
Content Type	Text
Resource Type	Article

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