| Patent application number | Description | Published |
|---|
| 20090045344 | Radiation converter, detector module, methods for the production thereof, and a radiation detection device - A radiation converter is disclosed. In order to improve the detection of x-ray radiation or gamma radiation, at least one embodiment of the invention provides that, in the case of the radiation converter with a plurality of converter elements for converting x-ray radiation or gamma radiation to light, in each case one light outlet window is formed on a light outlet side of the converter elements such that, on the light outlet side, the converter elements are covered in part by reflector material in a layered fashion. | 02-19-2009 |
| 20090050818 | Method for determining individual quantum absorption events in a radiation converter for converting individual quanta of ionizing radiation incident on it, program code segment for carrying out the method, device for electronic data processing, radiation converter and imaging tomography scanner - A method is disclosed for determining individual quantum absorption events in a radiation converter which counts quanta. In at least one embodiment of the method, temporally continuous analog-to-digital conversion of electrical signals generated by a quantum absorption event to a digital signal is carried out first of all by the radiation converter. The digital signal is then processed to determine the number of quanta of the underlying quantum absorption event absorbed in the radiation converter. | 02-26-2009 |
| 20090121142 | Radiation detector module, radiation detector and imaging tomography device - An embodiment of the invention relates, in particular, to a radiation detector module for producing a radiation detector for computed tomography, having a first operating mode for quantitative and/or energy-selective detection of x-radiation. An embodiment relates to a radiation detector module including a scintillation layer for converting the x-radiation into light, and a photodetection unit for detecting the light, the photodetection unit including a multiplicity of silicon photomultipliers. | 05-14-2009 |
| 20090194703 | Method and circut arrangement for determining the radiation intensity using directly counting detectors - A method and a circuit arrangement are disclosed for determining radiation intensity using counting detectors or detector elements, in which x-ray radiation photons, which are either absorbed or absorbed in part, generate electrical signals, the pulse number and pulse height of which is correlated to an incident radiation intensity, and the radiation intensity is at least determined by counting the pulses. According to at least one embodiment of the invention, the signal pulses incident on at least one detector or detector element are detected simultaneously by at least one continuously operating pulse height discriminator and by at least one pulse height discriminator operating in a clocked fashion, with the number of incident signal pulses being determined with the aid of these two items of detection information. | 08-06-2009 |
| 20090257549 | Method for preparing reconstructed CT image data records and CT system - A method and CT system are disclosed for preparing reconstructed CT image data records. In at least one embodiment of the method, an initial material distribution of an examination object is determined from CT data records determined from among at least two different spectral weightings with local energy-determined attenuation values, and local measurement-spectrum-dependent weighting functions are determined using this material distribution, enabling local measurement-spectrum-dependent attenuation functions to be calculated, and the distribution of local reference materials to be determined, with the help of plausibility considerations, from a list of reference materials over at least one specified region of interest in the examination object on the basis of previously calculated local measurement-spectrum-dependent attenuation functions. | 10-15-2009 |
| 20100034345 | Radiation converter and method for producing the same, radiation detector and tomography device - A radiation converter is disclosed. In at least one embodiment, the converter is for x-ray or gamma radiation and includes a multiplicity of scintillation elements which are separated from one another by separating septa. To reduce cross-talk between adjacent scintillation elements, the separating septa have a layer structure. The layer structure includes two backscatter layers, between which an absorber layer which is essentially opaque to the radiation, to scatter radiation and/or scintillation light is disposed. | 02-11-2010 |
| 20100220834 | Method for Producing Projective and Tomographic Images Using an X-Ray System - An embodiment of the present invention discloses a method for producing projective and tomographic images using X-rays, allowing structures of similar composition to be imaged particularly well by combined evaluation of the behaviour of the test object with respect to the phase displacement during passage of the X-rays and its absorption. At least one embodiment of the invention also relates to an X-ray system and a CT system with respective source grids, phase grids, and analytical grids for carrying out the method. | 09-02-2010 |
| 20100232568 | X-RAY OR GAMMA RAY DETECTOR ARRAY - An X-ray or gamma ray detector array is disclosed, with at least one row of detector elements including at least one layer made of an X-ray or gamma radiation absorbing conversion material. In at least one embodiment, the conversion material is at least in part composed of a chemical element with an atomic number ≧72, preferably >82. Such an X-ray or gamma ray detector array allows an increased spatial and spectral resolution and better dose usage. | 09-16-2010 |
