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US 6,528,812 B1Granted
Radiation image read-out method and apparatus
AssigneeAgfa-Gevaert
InventorsPaul Leblans, Luc Struye
Life of this patent
Estimating the term…
Abstract
A radiation image that has been stored in photostimulable phosphor screen comprising a divalent europium activated cesium halide is read out by stimulating the phosphor screen by means of stimulating radiation, detecting light emitted by the phosphor screen upon stimulation and converting the detected light into a signal representation of said radiation image. After read out the phosphor screen is erased by exposing it to erasing light emitted by at least one electroluminescent lamp or by an array of light emitting diodes.
Claims12
A re-usable radiation detector comprising
- a photostimulable phosphor screen,
- at least one source of stimulating light arranged for stimulating said phosphor screen,
- an array of transducer elements arranged for capturing light emitted by the phosphor screen upon stimulation and for converting said light into an electrical signal representation,
- an erasing unit comprising an electroluminescent lamp arranged so as to illuminate said phosphor screen when being energised,
- means for transporting an assembly comprising the at least one stimulating light source, the erasing unit, and the array of transducer elements relative to the phosphor screen,
- an enclosure enclosing said photostimulable phosphor screen, the assembly comprising the at least one stimulating light source, the erasing unit, and the array of transducer elements, and the means for transporting said assembly,
- interfacing means for communicating said electrical signal representation to an external signal processing device.
4 more elements
A re-usable radiation detector comprising
- a photostimulable phosphor screen,
- at least one source of stimulating light arranged for stimulating said phosphor screen,
- an array of transducer elements arranged for capturing light emitted by the phosphor screen upon stimulation and for converting said light into an electrical signal representation,
- an erasing unit comprising at least one array of light emitting diodes arranged so as to illuminate said phosphor screen when being energised,
- means for transporting an assembly comprising the at least one stimulating light source, the erasing unit and the array of transducer elements relative to the phosphor screen,
- an enclosure enclosing said photostimulable phosphor screen, the assembly comprising the at least one stimulating light source, the erasing unit, and the array of transducer elements, and the means for transporting said assembly,
- interfacing means for communicating said electrical signal representation to an external signal processing device.
4 more elements
Dependencies are inferred from the claim text.