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AssigneeAgfa-Gevaert
InventorsMelvin Tecotzky, George Blasse, Andries Meijerink, David R. Terrell, Luc A. Struye
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A method for recording and reproducing an X-ray image is provided which method comprises the steps of: (1) causing a photostimulable phosphor to absorb image-wise or pattern-wise modulated X-rays, (2) photostimulating said phosphor with stimulating electromagnetic radiation selected from visible light and infrared light to release from the phosphor in accordance with the absorbed X-rays electromagnetic radiation different in wavelength characteristic from the radiation used in the photo-stimulation, and (3) detecting said light emitted by photostimulation, wherein said phosphor is a halosilicate containing as host metal at least one member selected from the group consisting of Ca, Sr, Ba, Mg, Cd, Zn and Pb, as halogen at least one member selected from the group consisting of Cl, Br and I, and comprising as dopant(s) Eu.sup.2+ and/or Cr.sup.3+.
A method for recording and reproducing an X-ray image comprising the steps of:
A photostimulable phosphor which is a halosilicate containing as host metal at least one member selected from the group consisting of Ca, Sr, Ba, Mg, Cd, Zn and Pb, as halogen at least one member selected from the group consisting of Cl, Br and I, and as activator (dopant) Eu.sup.2+ in combination with (a) co-dopant(s) being at least one member selected from the group consisting of La, Y, Sc and the lanthanide elements excluding Eu.sup.2+ or being at least one of sodium and potassium.
A photostimulable phosphor which is a halosilicate containing as host metal at least one member selected from the group consisting of Ca, Sr, Ba, Mg, Cd, Zn and Pb, as halogen at least one member selected from the group consisting of Cl, Br and I, and as activator (dopant) Ce.sup.3+ in combination with (a) co-dopant(s) being at least one member selected from the group consisting of La, Y, Sc and the lanthanide elements excluding Ce.sup.3+ and terbium or being at least one of sodium and potassium.
A radiation image storage panel comprising in an organic film polymer binder layer a photostimulable phosphor, wherein said phosphor is a halosilicate containing as host metal at least one member selected from the group consisting of Ca, Sr, Ba, Mg, Cd, Zn and Pb, as halogen at least one member selected from the group consisting of Cl, Br and I, and comprising as dopant(s), also called activator(s), Eu.sup.2+ and/or Ce.sup.3+.
A method for recording and reproducing a radiation image comprising the steps of (i) causing a visible radiation stimulable phosphor to absorb an x-ray radiation passing through an object, (ii) stimulating said phosphor with visible radiation to release the stored energy as fluorescent light and (iii) detecting said fluorescent light with light detecting means, characterized by the fact that said phosphor is selected within the group of divalent europium activated alkali earth metal halosilicates.
Dependencies are inferred from the claim text.