Trajectory Analysis in a Collector with Multistage Energy Recovery for a DEMO Prototype Gyrotron. Part I. Idealized Magnetic Field Distribution

This paper presents the results of simulation of the collector of a prototype gyrotron designed for the DEMO project. Trajectory analysis in a collector with four-stage recovery of the residual beam energy based on the method of spatial separation of electrons in crossed azimuthal magnetic and axial...

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Bibliographic Details
Published in:Technical physics 2021, Vol.66 (1), p.118-123
Main Authors: Louksha, O. I., Trofimov, P. A., Manuilov, V. N., Glyavin, M. Yu
Format: Article
Language:English
Subjects:
Analysis
Classical and Continuum Physics
Conductors
Cyclotron resonance devices
Electric fields
Electron beams
Electrons
Energy recovery
Magnetic fields
Physical Electronics
Physics
Physics and Astronomy
Plasma physics
Prototypes
Residual energy
Separation
Solenoids
Trajectory analysis
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Summary:This paper presents the results of simulation of the collector of a prototype gyrotron designed for the DEMO project. Trajectory analysis in a collector with four-stage recovery of the residual beam energy based on the method of spatial separation of electrons in crossed azimuthal magnetic and axial electric fields was carried out. In this part of the research, the azimuthal magnetic field was formed using a conductor located on the axis of the device. The study was carried out for a spent electron beam with a particle velocity and coordinate distribution close to those obtained in experiments with high-power gyrotrons. As a result of optimizing the geometry and potentials of the collector sections, an overall efficiency of the gyrotron higher than 80% was achieved, which is close to the maximum efficiency with ideal separation of electron beam fractions with different energies. The data obtained will be used to design a toroidal solenoid for creating an azimuthal magnetic field.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784221010138