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

Ganenko, V. B.; Burdeinyi, D. D.; Truten, V. I.; Shul'ga, N. F.; Fissum, K. LU ; Brudvik, J. LU ; Hansen, K. LU ; Isaksson, L. LU ; Livingston, K. and Lundin, M. LU , et al. (2018) In Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 424. p.17-25
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.

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organization
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type
Contribution to journal
publication status
published
subject
keywords
Axial orientation, Channeling and above-barrier motion, Diamond crystal, Electrons, Quasi-classical approximation, Radiation mechanisms, Radiation spectra
in
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
volume
424
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:85044580800
ISSN
0168-583X
DOI
10.1016/j.nimb.2018.03.011
language
English
LU publication?
yes
id
1b1b2c30-d705-41da-9b5b-827d2cb22a38
date added to LUP
2018-04-10 10:09:38
date last changed
2018-09-16 04:54:32
@article{1b1b2c30-d705-41da-9b5b-827d2cb22a38,
  abstract     = {<p>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.</p>},
  author       = {Ganenko, V. B. and Burdeinyi, D. D. and Truten, V. I. and Shul'ga, N. F. and Fissum, K. and Brudvik, J. and Hansen, K. and Isaksson, L. and Livingston, K. and Lundin, M. and Nilsson, B. and Schroder, B.},
  issn         = {0168-583X},
  keyword      = {Axial orientation,Channeling and above-barrier motion,Diamond crystal,Electrons,Quasi-classical approximation,Radiation mechanisms,Radiation spectra},
  language     = {eng},
  month        = {06},
  pages        = {17--25},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms},
  title        = {Mechanisms of 200 MeV electron radiation in diamond crystal in the axial orientation},
  url          = {http://dx.doi.org/10.1016/j.nimb.2018.03.011},
  volume       = {424},
  year         = {2018},
}