On angular features of axial channeling radiation in crystals

Channeling of light relativistic particles in crystals is accompanied by intense radiation emission known as channeling radiation. Typically all calculations of channeling radiation aim in getting the total radiation intensity and its dependence on the parameters of particles and crystals. In the sa...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2022-03, Vol.82 (3), p.1-7, Article 196
Main Authors: Korotchenko, K. B., Kunashenko, Y. P., Dabagov, S. B.
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Channeling
Charged particles
Crystals
Electric waves
Electromagnetic radiation
Electromagnetic waves
Elementary Particles
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum electrodynamics
Quantum Field Theories
Quantum Field Theory
Radiant flux density
Radiation
Regular Article - Experimental Physics
Relativistic effects
Relativistic particles
String Theory
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Summary:Channeling of light relativistic particles in crystals is accompanied by intense radiation emission known as channeling radiation. Typically all calculations of channeling radiation aim in getting the total radiation intensity and its dependence on the parameters of particles and crystals. In the same time, since the discovery, the angular behaviours of channeling radiation have been studied just in a few works, in which only a polar dependence of the radiation intensity near the forward direction is estimated. However, simple analysis of the interaction potential predicts very specific features to be observed in the angular distributions of channeling radiation, especially at axial regime. In this work, for the first time, the expressions for angular and spectral distributions of electromagnetic radiation at axial channeling of relativistic charged particles in thin crystals are analytically refined within the QED theory. Obtained results allows predicting complex structures of radiation intensity and polarisation distributions. The results obtained might be of special interests for experimental studies.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-022-10147-w