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As recent studies have shown, radiation with orbital angular momentum – commonly referred to as twisted radiation – has the potential to become a new tool in research, owing to the additional degree of freedom provided by the orbital angular momentum [1]. This type of radiation and the additional degree of freedom it offers can provide valuable additional information about the interactions of photons, electrons and neutrons with materials. At Tomsk Polytechnic University, a new scheme for generating twisted radiation using relativistic electron beams and a spiral target, which acts as a radiation source, has been proposed.
This paper presents the results of computer simulations of radiation of relativistic electrons from a spiral target, including such radiation properties as angular distributions of radiation intensity, phase patterns of the radiation, Stokes’ parameters, and the spectral distribution of the radiation according to the topological charges of the orbital angular momentum.
This research was supported by the Russian Ministry of Science and Higher Education, project No. FSWW-2026-0046.
References:
1. Knyazev B. A., Serbo V. G. Beams of photons with nonzero projections of orbital angular momenta: new results //Physics–Uspekhi. – 2018. – Т. 61. – №. 5. – С. 449-479.