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Formation of Sheet Helical Electron Beams for High-Power Planar Gyrotrons

Planar magnetron-injection gun forming a powerful (3 MW) sheet helical electron beam (HEB) for 140 GHz gyrotron was designed. Modified scheme of an electron beam analyzer based on the retarding electric field method was developed to measure the electron beam characteristics, including pitch-factor a...

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Published in:IEEE electron device letters 2022-07, Vol.43 (7), p.1121-1124
Main Authors: Kuftin, A. N., Manuilov, V. N., Zaslavsky, V. Yu, Leshcheva, K. A., Ginzburg, N. S.
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container_end_page 1124
container_issue 7
container_start_page 1121
container_title IEEE electron device letters
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creator Kuftin, A. N.
Manuilov, V. N.
Zaslavsky, V. Yu
Leshcheva, K. A.
Ginzburg, N. S.
description Planar magnetron-injection gun forming a powerful (3 MW) sheet helical electron beam (HEB) for 140 GHz gyrotron was designed. Modified scheme of an electron beam analyzer based on the retarding electric field method was developed to measure the electron beam characteristics, including pitch-factor and velocity spread. Experimental results are in good agreement with theoretical predictions and demonstrate feasibility of formation of a wide (20 mm) sheet HEB with an energy of 100 keV, a current of 30 A and a pitch-factor of above 1.2 - 1.3.
doi_str_mv 10.1109/LED.2022.3175437
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language eng
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source IEEE Xplore (Online service)
subjects Cathodes
Cyclotron resonance devices
Electric fields
Electron beams
Gyrotrons
Magnetic field measurement
Magnetic fields
magnetron injection gun
planar gyrotron
Powerful millimeter and submillimeter radiation
Shape
sheet helical electron beam
Velocity measurement
title Formation of Sheet Helical Electron Beams for High-Power Planar Gyrotrons
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