Optically transparent, optically stimulable glass composites for radiation dosimetry
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United States of America Patent
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Sep 22, 1998
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app pub date -
Apr 29, 1997
filing date -
Apr 29, 1997
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Abstract
An optically transparent and optically stimulable glass composite includes glass matrix that has both luminescent centers and trapping centers. The trapping centers store trapped charges and, in response to optical stimulation, release the charges resulting in recombination and light emission. In one embodiment, the invention is a glass matrix doped with an alkaline earth sulfide, Sm ions, and an additional dopant such as Eu ions and Ce ions. Alternatively, the dopants may be ZnS and Cu, Pb, or Mn ions. In another embodiment, Cu may be the sole dopant. Several different preparation methods, including diffusion techniques, are described for producing the doped glasses.
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