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We present Cs2NaYF6:Ce3+ or Pr3+ as new x-ray storage phosphors. The radiation damage centers upon x irradiation were investigated using magneto-optical and magnetic resonance spectroscopy. F centers are the photostimulable electron trap centers. For the activator Pr3+ it could be shown that upon room temperature x irradiation only F centers and Pr4+ hole trap centers are involved in the information storage and readout process. There are indications that the process is the same for Ce3+-doped Cs2NaYF6.
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Pawlik et al. (1997) studied this question.
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