Process for preparing radiation image storage panel by gas...

Details Process for preparing radiation image storage panel by gas... Process for preparing radiation image storage panel by gas...

2005-02-08

2005-02-08

Thomas, Alexander S. (Department: 1772)

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

C427S255390, C427S377000, C250S484400, C250S486100

Reexamination Certificate

active

06852357

ABSTRACT:
A radiation image storage panel composed of a support and a phosphor film of a stimulable europium activated cesium bromide phosphor having the formula (I):in-line-formulae description="In-line Formulae" end="lead"?CsBr.MIX−aMIIX′2+bMIIIX″3:zEu   (I)in-line-formulae description="In-line Formulae" end="tail"?[MIis an alkali metal element; MIIis an alkaline earth metal element or a divalent metal element; MIIIis a rare earth element or a trivalent metal element; each of X, X′ and X″ is a halogen; and 0≦a<0.5, 0≦b<0.5, 0≦c<0.5, and 0<z<1.0] is prepared by the steps of depositing on the support a prismatic europium activated cesium bromide phosphor crystal layer on the support in a gas phase; and heating the crystal layer at a temperature of <300 ° C. but >50° C. for 1 to 8 hours in an inert gas atmosphere which may contain a small amount of oxygen or hydrogen.

REFERENCES:
patent: 6290873 (2001-09-01), Takahashi et al.

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