Procedure to obtain Gd 2 O 2 S: Pr for CT with a very short...

Details Procedure to obtain Gd 2 O 2 S: Pr for CT with a very short... Procedure to obtain Gd 2 O 2 S: Pr for CT with a very short...

2006-04-13

2011-11-15

Koslow, Carol M (Department: 1734)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C501S152000

Reexamination Certificate

active

08057702

ABSTRACT:
The present invention is directed to a Gd2O2S:M fluorescent ceramic material with a very short afterglow, wherein M represents at least one element selected from the group Pr, Th, Yb, Dy, Sm and/or Ho and the Gd2O2S:M fluorescent ceramic material comprises further:europium of ≦1 wt. ppm based on Gd2O2S, andcerium of ≧0.1 wt. ppm to ≦100 wt. ppm based on Gd2O2S, wherein the content of cerium is in excess of the content of europium with a ratio of europium to cerium of 1:10 to 1:150.

REFERENCES:
patent: 3974389 (1976-08-01), Ferri et al.
patent: 4507560 (1985-03-01), Mathers et al.
patent: 5296163 (1994-03-01), Leppert et al.
patent: 5518659 (1996-05-01), Rossner et al.
patent: 5811924 (1998-09-01), Okumura et al.
patent: 6093347 (2000-07-01), Lynch et al.
patent: 6340436 (2002-01-01), Yamada et al.
patent: 7728302 (2010-06-01), Zeitler et al.
patent: 2003/0173532 (2003-09-01), Takahashi et al.
patent: 4402258 (1995-07-01), None
patent: 04236292 (1992-08-01), None
patent: WO 2005/110943 (2005-11-01), None
Shepherd, J. A., et al.; Study of afterglow in x-ray phosphors for use on fast-framing charge-coupled device detectors; 1997; Optical Engineering, Soc. of Photo-Optical Instrumentation Engineers; 36(11)3211-3222.

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