A new approach to solving the radiation field problem of an extended helical undulator

A new method is applied to construct an exact solution for the radiation field of a particle moving along an infinite helical trajectory. The solution is obtained in the form of a series expansion in cylindrical multipoles. The obtained solution is compared with the existing approximate solution and...

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Published in:arXiv.org 2024-10
Main Authors: Ivanyan, M I, Grigoryan, B, Grigoryan, A, Aslyan, L, Avagyan, V, Babujyan, H, Arutunian, S, Floettmann, K, Lemery, F
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Language:English
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Doppler effect
Exact solutions
Multipoles
Series expansion
Trajectory optimization
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creator Ivanyan, M I
Grigoryan, B
Grigoryan, A
Aslyan, L
Avagyan, V
Babujyan, H
Arutunian, S
Floettmann, K
Lemery, F
description A new method is applied to construct an exact solution for the radiation field of a particle moving along an infinite helical trajectory. The solution is obtained in the form of a series expansion in cylindrical multipoles. The obtained solution is compared with the existing approximate solution and, using the derived exact relationships for the Doppler effect, is used to construct integral and angular characteristics of the radiation field. The possibility of a continuous transition from expressions for a helical trajectory of a particle to expressions describing the motion of a particle along a closed circle is shown. Optimization criteria are introduced and the possibility of optimizing the radiation characteristics by several parameters is considered.
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subjects Doppler effect
Exact solutions
Multipoles
Series expansion
Trajectory optimization
title A new approach to solving the radiation field problem of an extended helical undulator
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