C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
358/11, 31/128
C09K 11/86 (2006.01) C09K 11/77 (2006.01) G21K 4/00 (2006.01)
Patent
CA 1197086
RADIATION IMAGE RECORDING AND REPRODUCING METHOD AND RADIATION IMAGE STORAGE PANEL EMPLOYED FOR THE SAME ABSTRACT OF THE DISCLOSURE A radiation image recording and reproducing method comprising steps of: causing a stimulable phosphor to absorb a radiation having passed through an object or radiated by an object, exposing said stimulable phosphor to an electro- magnetic wave having a wavelength within the range of 450 - 800 nm to release the radiation energy stored therein as light emission, and detecting the emitted light, in which said stimulable phosphor is a divalent europium activated complex halide phosphor having the formula (I): MIIFx.aMIx'.bM'IIX"2.cMIIIX"'3.xA:yEu2+ (I) in which MII is at least one alkaline earth metal se- lected from the group consisting of Ba, Sr and Ca; MI is at least one alkali metal selected from the group con- sisting of Li, Na, K, Rb and Cs; M'II is at least one divalent metal selected from the group consisting of Be and Mg; MIII is at least one trivalent metal selected from the group consisting of Al, Ga, In and Tl; A is at least one metal oxide; X is at least one halogen select- ed from the group consisting of C1, Br and I; each of X', X" and X"' is at least one halogen selected from the group consisting of F, C1, Br and I; a, b and c are numbers satisfying the conditions of 0 ? a ? 2, 0 ? b ? 10-2, 0 ? c ? 10-2 and a+b+c ? 10-6; and x and y are numbers satisfying the conditions of 0 ? x ? 0.5 and 0 < y ? 0.2, respectively. A radiation image storage panel employed for the method is also disclosed.
439458
Nakamura Takashi
Takahashi Kenji
Fuji Photo Film Co. Ltd.
Rogers & Bereskin
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