Doped cadmium tungstate scintillator with improved radiation...

Compositions – Inorganic luminescent compositions – Tungsten containing

Reexamination Certificate

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C378S004000, C378S098800, C378S098120, C250S362000, C250S367000, C250S475200, C250S483100, C250S370090

Reexamination Certificate

active

10928755

ABSTRACT:
This invention provides novel cadmium tungstate scintillator materials that show improved radiation hardness. In particular, it was discovered that doping of cadmium tungstate (CdWO4) with trivalent metal ions or monovalent metal ions is particularly effective in improving radiation hardness of the scintillator material.

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Tanaka,K. “cathode luminescence of samarium, europium, and gadolinium ion doped scintillator CdWO4 single crystals studied with x-ray photoelectron spectroscpoy”, Journ. App. Phys. vol. 89, No. 10, May 15, 2001, pp. 5449-5453.

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