Abstract: A quantum-counting radiation detector in which signals of individual pixels and signals of combined pixels are evaluated in parallel processing branches and count results are combined in an appropriate manner, thereby reducing the influence of unwanted interference effects for the respective application.

Abstract: A quantum-counting radiation detector is disclosed, in particular an x-ray detector. In at least one embodiment, the signals of the individual pixels and the signals of combined pixels are evaluated in parallel processing branches. It is then possible to combine the count results in an appropriate manner, to reduce the influence of unwanted interference effects for the respective application.

Abstract: 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.

Abstract: A quantum detector module for the quantitative and energy-resolved determination of quantum absorption events, a quantum detector, a method for determining quantum absorption events, a computer program product and a radiation detection device are disclosed. In at least one embodiment, the quantum detector module includes a multiplicity of detector pixels. In order to determine the quantum absorption events particularly precisely, in at least one embodiment it is provided that the detector pixels have at least two mutually different pixel apertures.

Abstract: 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.

Abstract: A quantum detector module for the quantitative and energy-resolved determination of quantum absorption events, a quantum detector, a method for determining quantum absorption events, a computer program product and a radiation detection device are disclosed. In at least one embodiment, the quantum detector module includes a multiplicity of detector pixels. In order to determine the quantum absorption events particularly precisely, in at least one embodiment it is provided that the detector pixels have at least two mutually different pixel apertures.

Abstract: An X-ray detector is disclosed for detecting individual quanta. In at least one embodiment, the X-ray detector includes a plurality of detector elements and an evaluation unit that is connected to the latter for data purposes and is set up in such a way that each detector element is assigned a first energy threshold, wherein in each case one portion of various radiation spectra that can be picked up by the detector element exhibits an energy below the energy threshold, and a further portion of the respective radiation spectrum exhibits an energy above the energy threshold.

Abstract: A tomography appliance and method for a tomography appliance make it possible to calculate, in a simple and efficient manner, detector-element-related coefficients of an intensity function dependent on the detector output signal and to calculate the X-ray-emitter-related coefficients of an intensity function dependent on an X-ray emitter input value. This is done on the basis of measured detector output signals and at least one X-ray emitter input value, such that the intensity which acts precisely on the respective detector element can be determined from X-ray radiation originating from the X-ray emitter.

Abstract: An X-ray detector is disclosed for detecting individual quanta. In at least one embodiment, the X-ray detector includes a plurality of detector elements and an evaluation unit that is connected to the latter for data purposes and is set up in such a way that each detector element is assigned a first energy threshold, wherein in each case one portion of various radiation spectra that can be picked up by the detector element exhibits an energy below the energy threshold, and a further portion of the respective radiation spectrum exhibits an energy above the energy threshold.

Abstract: A method is for operation of a counting radiation detector, in particular of a counting X-ray detector, with improved linearity, in which each detector element of the counting radiation detector supplies counting pulses at counting rates as a function of a number of radiation quanta which occur per unit time during operation. In the method, the counting rates which are supplied from each detector element or from subsections of the detector element are converted via a functional relationship to actual counting rates or are multiplied by correction factors which are dependent on the magnitude of the counting rates. The correction factors are determined in advance for the respective detector element or for the subsections of it, and any discrepancy (which occurs as a result of a dead time of the detector element, for example) in the counting rates is corrected from the actual number of radiation quanta which arrive per unit time.

Abstract: A collimator is disclosed for a detector sensitive to radiation and having a contact electrode. The collimator includes a bottom element which is connectable to the contact electrode of the detector. In the bottom element, there is introducible into the recess in such a manner that when the bottom element is connected to the contact electrode, the electrical conductor is electrically connected to the contact electrode. A detector arrangement is also disclosed, having such a collimator.

Abstract: A tomography appliance and method for a tomography appliance make it possible to calculate, in a simple and efficient manner, detector-element-related coefficients of an intensity function dependent on the detector output signal and to calculate the X-ray-emitter-related coefficients of an intensity function dependent on an X-ray emitter input value. This is done on the basis of measured detector output signals and at least one X-ray emitter input value, such that the intensity which acts precisely on the respective detector element can be determined from X-ray radiation originating from the X-ray emitter.

Abstract: A method is for operation of a counting radiation detector, in particular of a counting X-ray detector, with improved linearity, in which each detector element of the counting radiation detector supplies counting pulses at counting rates as a function of a number of radiation quanta which occur per unit time during operation. In the method, the counting rates which are supplied from each detector element or from subsections of the detector element are converted via a functional relationship to actual counting rates or are multiplied by correction factors which are dependent on the magnitude of the counting rates. The correction factors are determined in advance for the respective detector element or for the subsections of it, and any discrepancy (which occurs as a result of a dead time of the detector element, for example) in the counting rates is corrected from the actual number of radiation quanta which arrive per unit time.