Angular density of the PXR in a periodic layered medium with three layers in a period in Laue scattering geometry
DOI:
https://doi.org/10.52575/2687-0959-2026-58-1-78-87Keywords:
periodic layered structure, three-layer structure, dynamic diffraction, parametric X-ray radiationAbstract
A theory of parametric X-ray radiation from a relativistic electron traversing a periodic layered medium with three layers per period in Laue scattering geometry has been developed. Within the two-wave approximation of dynamic diffraction theory, an expression describing the angular density of parametric X-ray emission has been derived. Using this expression, numerical calculations of the PXR angular density have been performed. A significant dependence of the PXR angular density on the ratio of the real parts of the dielectric susceptibilities of the layer materials and the ratio of the layer thicknesses has been demonstrated.
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References
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Baryshevsky VG., Feranchuk ID. Transition radiation of γ-rays in a crystal. ZHurnal Eksperimental’noj i Teoreticheskoj Fiziki [Journal of Experimental and Theoretical Physics]. 1972;34(3):502.
Kaplin VV., Uglov SR, Zabaev VN., Piestrup MA. Observation of bright monochromatic x rays generated by relativistic electrons passing through a multilayer mirror Appl. Phys. Lett. 76. 2000;24:3647-3649. DOI: 10.1063/1.126735
Blazhevich SV., Kolosova IV., Noskov AV. Coherent x-ray radiation generated by a relativistic electron in an artificial periodic structure. ZHurnal Eksperimental’noj i Teoreticheskoj Fiziki [Journal of Experimental and Theoretical Physics]. 2012;141(4):547-554 (In Russian). DOI: 10.1134/S1063776112020021
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Potylitsyn A. Electromagnetic Radiation of Electrons in Periodic Structures. Springer. 2011.216 p. DOI: 10.1007/978-3-642-19248-7
Uglov SR., Kaplin VV., Kubankin AS., Andre JM., Le Guen K., Jonnard Ph., De Rossi S., Meltchakov E., Delmotte F. Cr/Sc multilayer radiator for parametric EUV radiation in “water-window” spectral range. Journal of Physics: Conference Series. 2016;732(1):012017. DOI: 10.1088/1742-6596/732/1/012017
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