Abstract
A four-stage collector system is developed for the experimental gyrotron at the Peter the Great St. Petersburg Polytechnic University based on spatial separation of electrons with different energies in crossed electric and magnetic fields. The conditions of use of this system for the efficient recuperation of electron residual energy in a spent beam are determined. The numerical simulation of the recuperator and the analysis of the electric and magnetic field distribution in the gyrotron collector region are accomplished. Theoretical estimations and trajectory analysis of the helical electron beam show that the system developed provides the electron residual energy recuperation necessary to achieve total gyrotron efficiency over 70%.
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Funding
The study was supported by the Russian Science Foundation, project no. 16-12-10010-P. Some of the results were obtained using the computing resources of the Supercomputer Center, Peter the Great St. Petersburg Polytechnic University (http://www.scc.spbstu.ru).
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Translated by N. Semenova
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Louksha, O.I., Trofimov, P.A. Development of a Collector with Multistage Recuperation for Gyrotron. J. Commun. Technol. Electron. 65, 950–955 (2020). https://doi.org/10.1134/S1064226920080082
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DOI: https://doi.org/10.1134/S1064226920080082