Coherent diffraction and Cherenkov radiation of relativistic electrons from a dielectric target in the millimeter wavelength range

Abstract

The coherent diffraction radiation (DR) and Cherenkov radiation (ChR) emitted by bunched electron beam of 6.1 MeV passing near a flat dielectric target have been observed in the millimeter wavelength range. The simple geometry of experiment allows testing different theoretical approaches, which consider the process of simultaneous emission of DR and ChR from dielectric targets. Properties of the radiation have been experimentally investigated in far-field zone. The angular distribution of the observed radiation at various tilt angles of the target in respect to the electron beam have shown the effect of interference between DR and ChR. The comparison of experimental results with the theoretical calculations based on the approach of polarization currents has been done.

Original language	English
Pages (from-to)	129-131
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	355
DOIs	https://doi.org/10.1016/j.nimb.2015.03.018
Publication status	Published - 28 Jul 2015

Keywords

Cherenkov radiation
Dielectric target
Diffraction radiation
Millimeter wave

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nimb.2015.03.018

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Coherent diffraction and Cherenkov radiation of relativistic electrons from a dielectric target in the millimeter wavelength range. / Bleko, V. V.; Konkov, A. S.; Soboleva, Veronika Vyacheslavovna.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 355, 28.07.2015, p. 129-131.

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title = "Coherent diffraction and Cherenkov radiation of relativistic electrons from a dielectric target in the millimeter wavelength range",

abstract = "The coherent diffraction radiation (DR) and Cherenkov radiation (ChR) emitted by bunched electron beam of 6.1 MeV passing near a flat dielectric target have been observed in the millimeter wavelength range. The simple geometry of experiment allows testing different theoretical approaches, which consider the process of simultaneous emission of DR and ChR from dielectric targets. Properties of the radiation have been experimentally investigated in far-field zone. The angular distribution of the observed radiation at various tilt angles of the target in respect to the electron beam have shown the effect of interference between DR and ChR. The comparison of experimental results with the theoretical calculations based on the approach of polarization currents has been done.",

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T1 - Coherent diffraction and Cherenkov radiation of relativistic electrons from a dielectric target in the millimeter wavelength range

AU - Bleko, V. V.

AU - Konkov, A. S.

AU - Soboleva, Veronika Vyacheslavovna

PY - 2015/7/28

Y1 - 2015/7/28

N2 - The coherent diffraction radiation (DR) and Cherenkov radiation (ChR) emitted by bunched electron beam of 6.1 MeV passing near a flat dielectric target have been observed in the millimeter wavelength range. The simple geometry of experiment allows testing different theoretical approaches, which consider the process of simultaneous emission of DR and ChR from dielectric targets. Properties of the radiation have been experimentally investigated in far-field zone. The angular distribution of the observed radiation at various tilt angles of the target in respect to the electron beam have shown the effect of interference between DR and ChR. The comparison of experimental results with the theoretical calculations based on the approach of polarization currents has been done.

AB - The coherent diffraction radiation (DR) and Cherenkov radiation (ChR) emitted by bunched electron beam of 6.1 MeV passing near a flat dielectric target have been observed in the millimeter wavelength range. The simple geometry of experiment allows testing different theoretical approaches, which consider the process of simultaneous emission of DR and ChR from dielectric targets. Properties of the radiation have been experimentally investigated in far-field zone. The angular distribution of the observed radiation at various tilt angles of the target in respect to the electron beam have shown the effect of interference between DR and ChR. The comparison of experimental results with the theoretical calculations based on the approach of polarization currents has been done.

KW - Cherenkov radiation

KW - Dielectric target

KW - Diffraction radiation

KW - Millimeter wave

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