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 journalArticle

4 Citations (Scopus)

Abstract

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
Volume100
Issue number1-4
Publication statusPublished - 2002

Fingerprint

Corundum
Excitation energy
Aluminum Oxide
Luminescence
color centers
Anions
Negative ions
aluminum oxides
luminescence
anions
Crystals
excitation
crystals
Synchrotrons
Ionizing radiation
Ionizing Radiation
Synchrotron radiation
ionizing radiation
energy
Electron beams

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Nuclear Energy and Engineering
  • Radiation

Cite this

Surdo, A. I., Kortov, V. S., Pustovarov, V. A., Yakovlev, V. Y., Horowitz, Y. S., & Oster, L. (2002). Transformation of the excitation energy in anion-defective corundum. Radiation Protection Dosimetry, 100(1-4), 171-174.

Transformation of the excitation energy in anion-defective corundum. / Surdo, A. I.; Kortov, V. S.; Pustovarov, V. A.; Yakovlev, V. Yu; Horowitz, Y. S.; Oster, L.

In: Radiation Protection Dosimetry, Vol. 100, No. 1-4, 2002, p. 171-174.

Research output: Contribution to journalArticle

Surdo, AI, Kortov, VS, Pustovarov, VA, Yakovlev, VY, Horowitz, YS & Oster, L 2002, 'Transformation of the excitation energy in anion-defective corundum', Radiation Protection Dosimetry, vol. 100, no. 1-4, pp. 171-174.
Surdo AI, Kortov VS, Pustovarov VA, Yakovlev VY, Horowitz YS, Oster L. Transformation of the excitation energy in anion-defective corundum. Radiation Protection Dosimetry. 2002;100(1-4):171-174.
Surdo, A. I. ; Kortov, V. S. ; Pustovarov, V. A. ; Yakovlev, V. Yu ; Horowitz, Y. S. ; Oster, L. / Transformation of the excitation energy in anion-defective corundum. In: Radiation Protection Dosimetry. 2002 ; Vol. 100, No. 1-4. pp. 171-174.
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