Mechanisms of 200 MeV electron radiation in diamond crystal in the axial orientation

Research output: Contribution to journalArticle

Abstract

The γ-radiation by electrons with the energy of ∼200 MeV in a 100μm-thick diamond crystal has been measured at the MAX-lab experimental facility, when the electrons are incident on the crystal along the 〈100〉 axis. In this case, the intensity of the -radiation with the energy ∼1–2 MeV is approximately 16 times higher than that in amorphous matter of the same thickness. Theoretical calculations based on the quasi-classical QED approximation are in good agreement with the experimental data. The analysis of the radiation mechanisms has shown that the main contribution to the radiation intensity resulted from electrons, moving in the above-barrier regime and at small angles to the crystal axis.

Details

Authors
Organisations
External organisations
  • Kharkiv National University
  • University of Glasgow
  • National Science Center Kharkov Institute of Physics and Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics

Keywords

  • Axial orientation, Channeling and above-barrier motion, Diamond crystal, Electrons, Quasi-classical approximation, Radiation mechanisms, Radiation spectra
Original languageEnglish
Pages (from-to)17-25
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume424
Publication statusPublished - 2018 Jun 1
Publication categoryResearch
Peer-reviewedYes

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