Patent EP0142734A1 successfully refreshed from Google Patents.
EP0142734A1
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Radiation image recording and reproducing method
Assignee: Fujifilm Holdings Corp
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Filing: 1984-10-23
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Granted: —
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Expires: 2004-10-23
Abstract
Abstract A radiation image recording and reproducing method comprising steps of: causing a stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object, exciting said stimulable phosphor with an electromagne- ticwave having a wavelength within the range of 450-900 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 barium fluorohalide phosphor having the formula (I): in whichx and y are numbers satisfying the conditions of 1 x10 -3 ≤ x < 1.0 and 0 < y ≤ 0.2, respectively.
Inventors
- 👤 Kenji C/O Fuji Photo Film Co. Ltd. Takahashi
- 👤 Yuichi C/O Fuji Photo Film Co. Ltd. Hosoi
- 👤 Yasushi C/O Fuji Photo Film Co. Ltd. Kojima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:46
CPC Classifications
G; G21; G21K; G21K4/00; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7728; C09K11/7732; C09K11/7733
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
A radiation image recording and reproducing method comprising steps of: causing a stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object, exciting said stimulable phosphor with an electromagnetic wave having a wavelength within the range of 450 - 900 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 barium fluorohalide phosphor having the formula (I): in which x and y are numbers satisfying the conditions of 1x10 -3 < x < 1.0 and 0 < y < 0.2, respectively.
Claim 2
Dependent Claim
104 words
A radiation image recording and reproducing method comprising steps of: causing a stimulable phosphor to absorb a radiation having passed through an object or having radiated from an object, exciting said stimulable phosphor with an electromagnetic wave having a wavelength within the range of 450 - 900 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 barium fluorohalide phosphor having the formula (I): in which x and y are numbers satisfying the conditions of 1x10 -3 < x < 1.0 and 0 < y < 0.2, respectively.
Claim 3
Dependent Claim
31 words
The radiation image recording and reproducing method as claimed in claim 1, in which x in the formula (I) is a number satisfying the condition of 0.05 < x < 0.8.
Claim 4
Dependent Claim
31 words
The radiation image recording and reproducing method as claimed in claim 2, in which x in the formula (I) is a number satisfying the condition of 0.3 < x < 0.6.
Claim 5
Dependent Claim
28 words
The radiation image recording and reproducing method as claimed in claim 1, in which said electromagnetic wave has a wavelength within the range of 550 - 850 nm.
Claim 6
Dependent Claim
28 words
The radiation image recording and reproducing method as claimed in claim 4, in which said electromagnetic wave has a wavelength within the range of 600 - 800 nm.
Claim 7
Dependent Claim
22 words
The radiation image recording and reproducing method as claimed in claim 1, in which said eleatromag- netic wave is a laser beam.
Claim 8
Dependent Claim
22 words
The radiation image recording and reproducing method as claimed in claim 6, in which said electromagnetic wave is a He-Ne laser beam.
Claim 9
Dependent Claim
22 words
The radiation image recording and reproducing method as claimed in claim 6, in which said laser beam is a semiconductor laser beam.
Claim 10
Dependent Claim
44 words
The radiation image recording and reproducing method as claimed in any one of claims 1 through 8, in which said stimulable phosphor is employed in the form of a radiation image storage panel which comprises a support and a stimulable phosphor layer provided thereon.
References Cited (Backward Citations)
FR2286872A1
Cited
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