Transformation of the excitation energy in anion-defective corundum

A. I. Surdo, V. S. Kortov, V. A. Pustovarov, V. Yu Yakovlev, Y. S. Horowitz, L. Oster

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Some regular features of the excitation energy transformation in anion-defective crystals of a-Al2O3 were analysed by the sub-nanosecond spectroscopic method. The samples were excited using synchrotron radiation and high-density pulsed electron beams. It was shown that much of the energy of the ionising radiation absorbed by the crystals was liberated as the luminescence of F+- and F-centres immediately at the moment of irradiation. Luminescence of F+-centres dominated in the nanosecond range, while luminescence of F-centres prevailed in the millisecond range. The excitation energy transformation processes and their kinetics were governed by the temperature, the concentration ratio of intrinsic defects in α-Al2O3 crystals, and the excitation density.

Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalRadiation Protection Dosimetry
Issue number1-4
StatePublished - 1 Jan 2002
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


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