Abstract: A method of preparing a phosphor screen having at least a substrate and a phosphor layer comprising a CsX:Eu2+ phosphor wherein X represents a halide selected from a group consisting of Br and Cl and wherein the phosphor is deposited by physical vapour deposition on the substrate. During deposition the substrate is at a temperature in the range of 135° C. to 235° C. and variation of the temperature of the substrate occurring during the deposition process is not more than 50° C.

Abstract: A phosphor panel with a protective coating divided in at least two layers, a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A is a layer of parylene.

Abstract: An image storage screen or panel, suitable for use in applications related with computed radiography, has been disclosed, wherein said screen or panel comprises a binderless needle-shaped stimulable (storage) phosphor and a substrate, characterized in that said substrate has a surface roughness of less than 2 &mgr;m and a reflectivity of more than 80%.

Abstract: A binderless storage phosphor screen comprises a vacuum deposited, phosphor layer on a support, wherein the support includes a layer of amorphous carbon and, optionally, one or more auxilliary layers.

Abstract: A stimulable phosphor screen or panel has been described, wherein said stimulable phosphor screen or panel comprises a phosphor layer and a support characterized in that an intermediate layer arrangement of an X-ray absorbing foil or layer and, farther from the support, a stimulated light reflecting foil is present between said support and said phosphor layer.

Abstract: A method has been disclosed for manufacturing a binderless storage phosphor screen or panel comprising a support and a stimulable phosphor layer with a layer thickness in the range from 100 &mgr;m up to 1000 &mgr;m, said phosphor layer having a transparency of at least 50% for radiation in the wavelength range from 350 nm up to 750 nm, characterized in that said transparency has been provided by melting of a powdery phosphor or a phosphor present in structured form in a structured layer, at least in part, in order to get a liquid phosphor layer, followed by solidifying said liquid phosphor layer.

Abstract: A device in form of a practical and reusable card for personal monitoring of incident penetrating radiation energy and for reading said energy comprising a stimulable phosphor absorbing and storing said energy and being stimulable with a wavelength &lgr;a; an electroluminescent phosphor emitting, upon application of an electrical field, stimulation light with wavelength &lgr;a, said wavelength &lgr;a being different from the said incident penetrating radiation, and wherein said device is equipped with means in order to apply an electrical field on said electroluminescent phosphor and wherein said stimulable phosphor and said electroluminescent phosphor are positioned relative to each other so that said light emitted by said electroluminescent phosphor reaches said stimulable phosphor for stimulating said phosphor in order to release stimulated light.

Abstract: Needle-shaped CsBr:Eu2+ storage phosphor crystal particles in form of a cylinder suitable for use in flat storage phosphor panels have been provided, wherein said particles have an average cross-section in the range from 1 &mgr;m up to 30 &mgr;m and an average length, measured along the casing of said cylinder, in the range from 100 &mgr;m up to 1000 &mgr;M.

Abstract: A layer arrangement comprising, at least in a binderless layer thereof, one or more vapor deposited pigments like the preferred nanocrystalline &bgr;-Cu-phthalocyanine nanocrystalline dye compound has been disclosed, wherein said layer layer arrangement is, in a preferred embodiment a photostimulable phosphor plate or panel having a binderless needle-shaped photostimulable alkali metal phosphor, and, more preferably, a CsBr:Eu2+ phosphor, showing besides a high image definition, an excellent preservation of color stability; and wherein the thus produced binderless photostimulable phosphor screen is overcoated with a strong protective layer in order to provide ability for easy transport through a scanning module, without jamming, in a diagnostic radiographic image reading system.

Abstract: A binderless stimulable phosphor screen comprises a vapor deposited storage phosphor layer on a support and a protective layer wherein the vapor deposited phosphor is needle-shaped with voids between the needles, wherein the voids are partially filled with a polymeric compound.

Abstract: A binderless stimulable phosphor screen is provided, comprising a vapor deposited phosphor layer on a support, wherein between the support and the phosphor layer a ceramic layer is present, wherein said ceramic layer preferably comprises a mixture of pigments so that the optical density of the phosphor screen is higher for the stimulating wavelength than for the stimulated emission wavelength of the vapor deposited phosphor.

Abstract: A binderless stimulable phosphor screen has been described, comprising a phosphor layer with needle-shaped phosphor crystals on a support absorbing at least 30% of the stimulating light and reflecting at least 60% of the stimulated light, wherein the support can be a PET support including a mixture of blue and white pigments.

Abstract: A radiography system is disclosed of the type having means for irradiation of an object in order to form an image of the said object or in order to detect irradiation of said object, said radiography system comprising a sensor having an exposure response function, wherein the sensor is in form of a stimulable storage phosphor plate, comprising stimulable storage phosphors, preferably having a dark-decay of more than 24 hours, wherein energy of stimulation radiation is higher than energy of emission radiation upon stimulation of said storage phosphors.

Abstract: A CsX:Eu phosphor showing a narrow emission spectrum upon UV-excitation and panels including such a phosphor are disclosed. Also methods for preparing such a phosphor have been described.

Abstract: A binderless storage phosphor screen with needle shaped crystals, wherein the phosphor is an alkalihalide phosphor and the needles show high [100] unit cell orientation in the plane of the screen.

Abstract: A phosphor panel with a protective coating divided in at least two layers: a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A has a lower water vapour permeability coefficient than the layer B. Layer A has a water vapour permeability coefficient, P, so that 1 0 ≤ P ≤ 1 × 10 - 11 ⁢ cm 3 ⁡ ( S ⁢   ⁢ TP ) · cm cm 2 · s · P ⁢   ⁢ a .

Abstract: A phosphor panel with a protective coating divided in at least two layers, a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A is a layer of parylene.

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.

Abstract: A supported phosphor screen or panel suitable for use in radiation detectors has been described, as well as a method to prepare said screen or panel, comprising a phosphor layer wherein the phosphor layer has a main surface and edges, and further comprises, as an overcoat layer, a moistureproof protective layer, characterized in that the panel comprises a support with a surface larger than the said main surface of said phosphor layer, so that the said phosphor layer leaves a portion of said support free, and said overcoat layer covers at least a part of said portion of said support left free by said phosphor layer.

Abstract: A radiation image read out method and apparatus including stimulating a divalent europium activated cesium halide phosphor screen wherein the halide is at least one of chloride and bromide, that has been exposed to a radiation image, detecting light emitted by the phosphor screen upon stimulation, and erasing the phosphor screen by exposing it to erasing light emitted by at least one laser source.