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Proceedings Paper

Radiation in diamond, leucosapphire, and quartz under the excitation of electron beam with an energy of up to 400 keV
Author(s): Victor F. Tarasenko; Vladimir I. Oleshko; Evgeniy I. Lipatov; Michail V. Erofeev
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Paper Abstract

The paper presents measurement data on the radiation excited in synthetic diamonds, leucosapphire, and quartz KU1 at a wavelength of 200–800 nm by a pulsed electron beam with an energy of up to 400 keV. The crystals reveal wide bands whose intensity increases with decreasing wavelength in the range 220–400 nm. For leucosapphire and quartz, the radiation pulse at these wavelengths is close in duration to the electron beam current pulse, suggesting that it is Cherenkov radiation. For synthetic diamonds, both Cherenkov radiation and pulsed cathodoluminescence are detected in this spectral region. In particular, an intense band of free excitons with its maximum at 235 nm is found at high beam current densities and electron energies.

Paper Details

Date Published: 11 December 2019
PDF: 6 pages
Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113222U (11 December 2019); doi: 10.1117/12.2550953
Show Author Affiliations
Victor F. Tarasenko, Institute of High Current Electronics (Russian Federation)
Vladimir I. Oleshko, Institute of High Current Electronics (Russian Federation)
National Research Tomsk Polytechnic Univ. (Russian Federation)
Evgeniy I. Lipatov, Institute of High Current Electronics (Russian Federation)
Michail V. Erofeev, Institute of High Current Electronics (Russian Federation)


Published in SPIE Proceedings Vol. 11322:
XIV International Conference on Pulsed Lasers and Laser Applications
Victor F. Tarasenko; Anton V. Klimkin; Maxim V. Trigub, Editor(s)

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