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EP0083085A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Radiation image recording and reproducing method

Assignee: Fujifilm Holdings Corp
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Filing: 1982-12-23
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Granted: —
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Expires: 2002-12-23
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Abstract

Abstract A radiation image recording and reproducing method comprising the steps of exposing a stimulable phosphor containing a bivalent europium activated complex halide phosphor represented by the formula: wherein X and X' each designated at least one of Cl, Br and I, x is a number satisfying 0<x≤10 -1 , and "a" is a number satisfying 0<a≤0.2, to a radiation passing through an object to have the radiation energy stored in said stimulable phosphor, stimulating said stimulable phosphor by an electromagnetic wave having a wavelength within the range of 450nm to 1,100nm, thereby causing said stimulable phosphor to emit said radiation energy in the form of light, and detecting the emitted light.

Inventors

  • 👤 Takashi C/O Fuji Photo Film Co. Ltd. Nakamura
  • 👤 Kenji C/O Fuji Photo Film Co. Ltd. Takahashi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 03:45
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/16; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7728; C09K11/7732; C09K11/7733

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 115 words
A radiation image recording and reproducing method comprising the steps of: exposing a stimulable phosphor containing a bivalent europium activated complex halide phosphor represented by the following general formula: BaFX·xNaX':aEu 2+ wherein X and X' each designate at least one of Cl, Br and I, x is a number satisfying 0<x≦10 -1 , and "a" is a number satisfying 0<a<_0.2, to a radiation passing through an object to have the radiation energy stored in said stimulable phosphor, stimulating said stimulable phosphor by an electromagnetic wave having a wavelength within the range of 450nm to 1,100nm, thereby causing said stimulable phosphor to emit said radiation energy in the form of light, and detecting the emitted light.
Claim 2
Dependent Claim 115 words
A radiation image recording and reproducing method comprising the steps of: exposing a stimulable phosphor containing a bivalent europium activated complex halide phosphor represented by the following general formula: BaFX·xNaX':aEu 2+ wherein X and X' each designate at least one of Cl, Br and I, x is a number satisfying 0<x≦10 -1 , and "a" is a number satisfying 0<a<_0.2, to a radiation passing through an object to have the radiation energy stored in said stimulable phosphor, stimulating said stimulable phosphor by an electromagnetic wave having a wavelength within the range of 450nm to 1,100nm, thereby causing said stimulable phosphor to emit said radiation energy in the form of light, and detecting the emitted light.
Claim 3
Dependent Claim 27 words
A method as defined in Claim 1 wherein said bivalent europium activated complex halide phosphor is represented by said x is a number satisfying 10-5≦x≦10 -2 .
Claim 4
Dependent Claim 30 words
. A method as defined in Claim 1 wherein said bivalent europium activated complex halide phosphor is represented by said "a" is a number satisfying 10 -5 ≦a≦10 -1 .
Claim 5
Dependent Claim 21 words
A method as defined in Claim 1 wherein said electromagnetic wave has a wavelength within the range of 450nm to 750nm.
Claim 6
Dependent Claim 15 words
A method as defined in Claim 1 wherein said electromagnetic wave is a laser beam.
Claim 7
Dependent Claim 16 words
A method as defined in Claim 5 wherein said laser beam is a He-Ne laser beam.

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