Detection of electron paramagnetic resonance of radiation-induced defects in BaFBr via recombination luminescence

U. Rogulis Institute of Solid State Physics, University of Latvia, LV-1063, Riga, Lativa

S. Schweizer University of Paderborn, Fachbereich Physik, Warburger Str. 100, D-33098, Paderborn, Germany

J.-M. Spaeth University of Paderborn, Fachbereich Physik, Warburger Str. 100, D-33098, Paderborn, Germany

Abstract

We investigated the recombination processes in the X-ray storage phosphor BaFBr: Eu²⁺ via the detection of the microwave-induced changes in the recombination luminescence in a high magnetic field. Resonances of the F(Br⁻) centre, of the V_K(Br₂ ⁻) centre, of the Eu²⁺ ground state and of a hitherto unknown hole centre were observed. The luminescence band of the F(Br⁻)-V_K(Br₂ ⁻) recombination peaks at about 400 nm, that of the F(Br⁻)-new hole centre recombination at about 350 nm.

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Detection of electron paramagnetic resonance of radiation-induced defects in BaFBr via recombination luminescence

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Detection of electron paramagnetic resonance of radiation-induced defects in BaFBr via recombination luminescence

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