Optically Transparent, Optically Stimulable Glass Composites for Radiation Dosimetry.
Patent field 29 Apr 97, patented 22 Sep 98
OFFICE OF THE SECRETARY OF THE NAVY WASHINGTON DC
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An optically transparent and optically stimulable glass composite includes a 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.
- Radiation and Nuclear Chemistry