Radiation effects and defects in solids · 1991 · 15 citations · 3 references
Natural SciencesMaterials ScienceOptical MaterialsRadiation BiophysicsSpectroscopyLuminescent MaterialsRare-earth-doped MaterialsLuminescence MechanismsRare-earth-doped CrystalsRare-earth-doped Luminescent MaterialsSpectral Absorption BandsStimulated Emission
Abstract The photo-stimulated luminescence (PSL) of Eu2+-doped BaFBr is excited in the two F centre absorption bands produced by X-irradiation at room temperature. The PSL intensity decreases with decreasing temperature by about a factor of 10. After bleaching at low temperatures the PSL is nearly zero, it can be regenerated by warming the crystal to room temperature. The results are discussed with a new model of the PSL process.
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