Electric field lines of charged particle in a helical undulator

One of the devices for generating circularly polarized radiation is a helical undulator in which a relativistic charged particle moves along a helical trajectory. In this paper, the spatial distribution of the electromagnetic field produced by such a particle is analyzed using electric field lines....

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Bibliographic Details
Published in:Journal of instrumentation 2024-05, Vol.19 (5), p.C05023
Main Authors: Aginian, M.A., Arutunian, S.G., Lazareva, E.G., Chung, M.
Format: Article
Language:English
Subjects:
Algorithms
Charged particles
Circular polarization
Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc)
Electric fields
Electromagnetic fields
Orthogonality
Polarized radiation
Radiation calculations
Relativistic particles
Spatial distribution
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Summary:One of the devices for generating circularly polarized radiation is a helical undulator in which a relativistic charged particle moves along a helical trajectory. In this paper, the spatial distribution of the electromagnetic field produced by such a particle is analyzed using electric field lines. The equations of electric field lines, which, due to the presence of curvature and torsion in the trajectory are precisely solved. A special algorithm for erasing invisible parts of the lines has been developed to represent the lines in space. Several remarkable features of the field picture are revealed, in particular, the hard component of the radiation is concentrated in the plane orthogonal to the undulator axis and passing through the position of the particle at the current moment of time.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/19/05/C05023