Room and Low Temperature Luminescence Properties of CaSO4:Dy,Tm Codoped with Li
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Rare earths, especially Dy or Tm doped CaSO4 phosphors are actively studied. They have high sensitivity, a large dynamic range, thermal stability and ease of preparation. Nevertheless, they can be enhanced by inclusion of lithium and this study reports some effects of lithium co-dopant on the TL and radioluminescence (RL) emissions of two TL phosphors. Addition of Li as a co-dopant ion was made either during chemical preparation of the phosphors, or as a binder component mixed with the basic phosphors matrix during the process of pressing and sintering the TLD pellets.
Keywords:Luminescence / CaSO4:Dy / Tm
Source:Physics Procedia, 2009, 2, 2, 459-466
- International Conference on Luminescence and Optical Spectroscopy of Condensed Matter (ICL08), Jul 07-11, 2008, Univ Lumiere Lyon 2, Lyon, France