Scintillator plate for radiation

Details Scintillator plate for radiation Scintillator plate for radiation

2008-05-13

2008-05-13

Porta, Dave (Department: 2884)

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

C250S367000, C250S486100

Reexamination Certificate

active

11601012

ABSTRACT:
An object is to provide a scintillator plate exhibiting even sharpness, and further exhibiting enhanced sharpness by use of CsI crystals. Disclosed is a scintillator plate for radiation comprising a support and provided thereon a phosphor layer emitting light caused upon exposure to radiation, wherein the phosphor layer comprises a plurality of phosphor columnar crystals, and any two phosphor columnar crystal diameters represented by a and b (a≧b) satisfy the following inequality of 1.0≦a/b<1.5. Further disclosed is a scintillator plate for radiation comprising a support and provided thereon a phosphor layer emitting light caused upon exposure to radiation, wherein the phosphor layer comprises a phosphor made from cesium iodide (CsI) as a base material and an activator, and a most dominant growth direction in the phosphor is (n 0 0) plane (where n=1, 2 or 3).

REFERENCES:
patent: 4437011 (1984-03-01), Noji et al.
patent: 7265371 (2007-09-01), Shoji et al.
patent: 2005/0040340 (2005-02-01), Morikawa et al.
patent: 2005/0061993 (2005-03-01), Shibuya et al.
patent: 63-215987 (1988-09-01), None
patent: 2003-66147 (2003-03-01), None
“Amorphous Semiconductor Usher in Digital X-ray Imaging” by John Rawlands, Physics Today, Nov. 1997, p. 24.
“Development of a High Resolution, Active Matrix, Flat-Panel Imager with Enhanced Fill Factor” by L.I. Anthonuk, SPIE, 1997, vol. 32, p. 2.

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