Quasi-Cherenkov Mechanism of Radiation from Relativistic Electrons Flying near a Multilayer Prism Target

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Abstract

The angular characteristics of millimeter radiation generated by a 6.1-MeV electron beam flying near a multilayer prism target consisting of conducting plates separated by vacuum gaps and near a homogeneous Teflon prism have been studied experimentally. The angular distributions of radiation from both targets have been compared. It has been shown that the angular distribution for the Teflon prism is in good agreement with the classical theory of Cherenkov radiation, whereas the evolution of angular distributions for the multilayer target is inconsistent with known expressions with a fixed effective refractive index. Radiation from the multilayer target (quasi-Cherenkov radiation) should assumingly be described by a tensor refractive index.

Original languageEnglish
Pages (from-to)255-259
Number of pages5
JournalJETP Letters
Volume111
Issue number5
DOIs
Publication statusPublished - 1 Mar 2020

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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