Abstract:
In a method to produce a scintillator-photosensor sandwich for use in a pixel-resolving radiation detector for ionizing radiation, either a scintillator layer or a photosensor layer can respectively be the first and second function layers (alternatively). A transfer adhesive tape carries an adhesive layer having an exposed first side and a second side covered by protective film. The exposed side of the adhesive layer is applied onto a first of the function layers. A first lamination of the adhesive layer including the protective film onto the first function layer is implemented. The protective film is removed. A second of the function layers is then placed in contact with the second side of the adhesive layer that is situated on the first of the function layers. A second lamination of the two function layers with the adhesive layer situated between them is implemented.
Abstract:
In a haulage device for the continuous removal of material excavated below ground, which can be continuously slaved between a mining machine (8) and a continuous road haulage means (2) over a defined path and narrow curve radii of the mining machine (8) while continuously hauling without interruption, the haulage device is configured as a closed-belt conveyor (9) which is movable on a suspended rail system (3), whose receiving end adjacent the mining machine (8) is coupled with a movable transfer conveyor (7) and whose end facing away from the mining machine (8) and adjacent the continuous road haulage means (2) is connected with a clamping device exerting a defined tensile stress over a defined displacement path of the transfer end of the closed-belt conveyor (8) in a displaceable transfer position onto the continuous road haulage means (2).
Abstract:
In one embodiment, the present invention includes an EEG system comprising of sensors which are utilized to gather an electromagnetic signal from a patient; a signal processing system; and a computer system. The computer system is configured to support multiple threads of execution. The computer system initiates a first thread of execution, a measurement module, where the data is filtered and in some cases averaged. Typically, the data is filtered for a particular latency period. Once the data has been filtered and averaged, the result is given to a second thread of execution, the source reconstruction module, which then proceeds to generate a source reconstruction for the trial. The measurement module then acquires and processes new electromagnetic data from a new trial while the source reconstruction is being performed on the most recent trial.
Abstract:
The present invention involves the creation of an appropriate model and the use of that model to generate a best fit dipole represented by a vector (x, y, z). Once the best fit dipole is generated, a best fit field distribution and a field distribution of a modified dipole is created. Using a difference between the field distributions, a Singular Value Decomposition is used to compute the main axes of the confidence ellipsoids.
Abstract:
An x-ray converter element has an x-ray-permeable and moisture-impermeable substrate, an x-ray-permeable carrier that is connected to the substrate, and a scintillator that is applied on the substrate, and an optically-transparent and moisture-impermeable protective layer that covers the scintillator.
Abstract:
In a method for producing a parylene coating on a substrate containing an integrated electronic component which is e.g. an x-ray detector, the following steps are provided: vaporization of parylene; pyrolyzation of the vaporized parylene; polymerization of the pyrolyzed parylene, the polymerized parylene being deposited on a cooled substrate. The method provides controllable, patterned deposition of parylene on the cooled and/or heated substrate, the advantage being that x-ray converters, for example, can be anticorrosively encapsulated and a penetration depth of the parylene between phosphor needles or storage phosphor needles can be controlled, resulting in an improved resolution and improved modulation transfer function of electronic components.
Abstract:
A protective layer is provided for an image detector used for an x-ray image. This image detector comprises a layer of luminescent material that is to be protected against mechanical stress and moisture. A polymeric protective layer is disposed thereupon and is hardened exclusively in an area which does not border the layer of luminescent material. The hardened area provides protection against mechanical stress while the remaining area forms a moisture barrier. An appertaining method is provided for producing a polymeric protective layer on an image detector for an x-ray image, which is provided with a layer of luminescent material. The protective layer is deposited on the layer of luminescent material and then is hardened only in an area which does not border the layer of luminescent material.
Abstract:
A protective layer is provided for an image detector used for an x-ray image. This image detector comprises a layer of luminescent material that is to be protected against mechanical stress and moisture. A polymeric protective layer is disposed thereupon and is hardened exclusively in an area which does not border the layer of luminescent material. The hardened area provides protection against mechanical stress while the remaining area forms a moisture barrier. An appertaining method is provided for producing a polymeric protective layer on an image detector for an x-ray image, which is provided with a layer of luminescent material. The protective layer is deposited on the layer of luminescent material and then is hardened only in an area which does not border the layer of luminescent material.
Abstract:
In a method for vapor-depositing a substrate with a layer of a needle-shaped x-ray fluorescent material containing at least one alkali metal, alkali halogenide phases and an alkali halogenide are mixed in a vapor phase and are vapor-deposited on the substrate. A needle-shaped fluorescent material is thereby produced having the formula ( ( M ′ + H ′ - ) a ( M ′′ + H ′′ - ) ( 1 - a ) ) k : ( M x ′ + S y z + H x ′ - H z * y ′′′ - ) b ( M x ′′ + S y z + H x ′′ - H z * y ′′′ - ) c ( M x ′ + S y z + H x ′′ - H z * y ′′′ - ) d ( M x ′′ + S y z + H x ′ - H z * y ′′′ - ) e wherein M+ is at least one metal ion from the group Na, K, Rb and Cs, H− is at least one halogenide from the group F, Cl, Br and I and Sz+ is at least one lanthanide ion from the group La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu.
Abstract:
In a method for improving the optical separation of needle-shaped fluorescent layers, made from a fluorescent material, which are formed by vapor deposition on a substrate, vapor deposition is controlled so that the fluorescent layer is deposited on the substrate with a density which is reduced in comparison to the density that the fluorescent material has as a solid.