摘要:
In favor of lowering corrosion of a radiation image phosphor or scintillator panel comprising, as a layer arrangement of consecutive layers, an anodized aluminum support, a sublayer and a phosphor or scintillator layer having needle-shaped phosphor or scintillator crystals, said sublayer comprises an inorganic metal oxide or a metal compound and has a thickness in the range from 0.1 μm to 2.5 μm.
摘要:
In a method for producing CsX:Eu stimulable phosphors and screens or panels provided with said phosphors as powder phosphors or vapor deposited needle-shaped phosphors suitable for use in image forming methods for recording and reproducing images of objects made by high energy radiation, said CsX:Eu stimulable phosphors are essentially free from oxygen in their crystal structure, wherein X represents a halide selected from the group consisting of Br, Cl and combinations thereof; and wherein the method further comprises the steps of mixing CsX with a compound or combinations of compounds having as a composition CsxEuyX′x+αy, wherein the ratio of x to y exceeds a value of 0.25, wherein α≧2 and wherein X′ is a halide selected from the group consisting of Cl, Br and I and combinations thereof; heating said mixture at a temperature above 450° C.; cooling said mixture, and, optionally, annealing and recovering said CsX:Eu phosphor.
摘要:
In a method for producing CsX:Eu stimulable phosphors and screens or panels provided with said phosphors as powder phosphors or vapor deposited needle-shaped phosphors suitable for use in image forming methods for recording and reproducing images of objects made by high energy radiation, said CsX:Eu stimulable phosphors are essentially free from oxygen in their crystal structure, wherein X represents a halide selected from the group consisting of Br, Cl and combinations thereof; and wherein the method further comprises the steps of mixing CsX with a compound or combinations of compounds having as a composition CsxEuyX′x+αy, wherein the ratio of x to y exceeds a value of 0.25, wherein α≧2 and wherein X′ is a halide selected from the group consisting of Cl, Br and I and combinations thereof; heating said mixture at a temperature above 450° C.; cooling said mixture, and, optionally, annealing and recovering said CsX:Eu phosphor.
摘要:
The invention relates to a system having a scanner and a memory layer. The memory layer comprises particles for storing X-ray information items, that can be excited by a stimulating radiation to emit an emission radiation corresponding to one of the X-ray information items and that are embedded in a medium and are distributed over the entire thickness of the memory layer. The scanner comprises an irradiating device for irradiating a linear region on the memory layer and a detector for the positionally resolved detection of emission radiation emitted by the memory layer along the linear region. To increase the sharpness of the X-ray information items to be detected with low losses in the intensity of the emission radiation, the medium can at least partially absorb components, directed both perpendicularly and parallel to the plane of the memory layer, of the emission radiation emitted by the individual particles.
摘要:
In a method of increasing humidity stability of a storage phosphor panel having a phosphor layer coated onto a support by vapor depositing raw phosphor precursor materials of a matrix and an activator component from one or more crucible(s) and/or crucible unit(s) in a vapor deposition apparatus, after ending vapor depositing an additional “over-annealing” step is performed in humidity conditions wherein more than 10 g of water per cubic meter of dry conditioning air is present.
摘要:
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.
摘要:
A phosphor or scintillator sheet, web or panel is provided, wherein a phosphor or a scintillator layer is coated onto a flexible substrate, the stiffness of which is lowered by presence of pits or grooves onto said substrate, preferably applied by a technique selected from the group consisting of mechanical, chemical, (laser) optical, electrical and photo-etching techniques.
摘要:
As a rare earth activated lutetium oxyorthosilicate phosphor with an enhanced X-ray absorption coefficient for direct X-rays, a scintillating phosphor according to the formula Lu2O5Si:xM, wherein M is selected from the group of rare earth elements consisting of Eu, Pr and Sm and wherein x is from 0.0001 to 0.2, has been shown to be preferred as said phosphor promptly emits red light, which makes it particularly suitable for use as a scintillator material in a device for direct-radiography (DR).
摘要翻译:作为对于直接X射线具有增强的X射线吸收系数的稀土活化镧氧化原硅酸盐荧光体,根据式Lu 2 O 5 Si:xM的闪烁荧光体,其中M选自由Eu,Pr组成的稀土元素组, Sm表示,其中x为0.0001〜0.2,因为所述荧光体迅速发出红光,因此特别适用于直接摄影(DR)装置中的闪烁体材料。
摘要:
A CsBr: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.
摘要:
An elpasolite phosphor is provided corresponding to the general formula: A2−yB1+yMe3+X6:xD wherein: A=a monovalent ion B=a monovalent ion A is different from B Me3+=a trivalent ion D is a dopant X is at least one of F, Cl, Br and I 0≦y≦1 0≦x≦0.2 and wherein said phosphor has a specific gravity (sg)≧4. An elpasolite phosphor corresponding to the general formula above is especially useful in the production of prompt emitting X-ray screens and in the production of X-ray energy storage screens.