Diffracted transition radiation of a relativistic electron in the artificial periodic multilayer medium

A theory of coherent X-ray radiation of a relativistic electron crossing the artificial periodic medium in the Laue scattering geometry is constructed. The expressions describing the spectral and angular characteristics of radiation in the direction of Bragg scattering are obtained and investigated....

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Bibliographic Details
Published in:Journal of physics. Conference series 2012-01, Vol.357 (1), p.12011-9
Main Authors: Blazhevich, S, Kolosova, I, Noskov, A
Format: Article
Language:English
Subjects:
Coherence
Crystal structure
Diffraction
Emission
Emission analysis
Multilayers
Physics
Radiation
Radiators
Relativistic effects
Scattering
Single crystals
Spectra
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Summary:A theory of coherent X-ray radiation of a relativistic electron crossing the artificial periodic medium in the Laue scattering geometry is constructed. The expressions describing the spectral and angular characteristics of radiation in the direction of Bragg scattering are obtained and investigated. By analogy with the radiation emission in a crystalline medium this radiation is considered as the result of coherent summation of the contributions of two radiation mechanisms: parametric (PXR) and diffracted transition (DTR). It is shown that the yield of DTR from layered target can be more than one order higher than the yield in single crystal radiator, under similar conditions. The manifestations of the Borrmann effect for DTR in the artificial multilayer environment are demonstrated for a Laue scattering geometry.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/357/1/012011