Physical model of photostimulated luminescence of x-ray irradiated BaFBr:Eu2+

DOI PDF 被引用文献18件
  • H. von Seggern
    Siemens Research Laboratories, 8520 Erlangen, Paul-Gossen Str. 100, West Germany
  • T. Voigt
    Siemens Research Laboratories, 8520 Erlangen, Paul-Gossen Str. 100, West Germany
  • W. Knüpfer
    Siemens Medical Research, 8520 Erlangen, Henkestr. 127, West Germany
  • G. Lange
    Siemens Medical Research, 8520 Erlangen, Henkestr. 127, West Germany

書誌事項

公開日
1988-08-01
DOI
  • 10.1063/1.341838
公開者
AIP Publishing

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説明

<jats:p>A dynamical model of the temporal dependence of photostimulated luminescence of the storage phosphor BaFBr:Eu2+ as a result of preceeding x-ray irradiation is presented. The model is based on a monomolecular recombination mechanism. The commonly used bimolecular mechanism leads to contradictions with experimental observations. The monomolecular recombination is explained by the existence of a photostimulable luminescence complex with a recombination center and an electron trap in close proximity. Charge transfer after optical excitation occurs through tunneling. The simulation of the transient charge carrier dynamics is performed through rate equations. Good agreement wih experimentally determined temporal responses for different x-ray doses applied and stimulating light intensities is obtained.</jats:p>

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