摘要:
A detector arrangement (10) for detecting and transferring detector signals to a processing unit is described. This detector arrangement is provided in particular for use in a computer tomograph for high-resolution detection of X-rays, the processing unit being in the form of a central processing unit or buffer memory (Z) on a rotatable portion of a gantry (1). To transfer the detector signals with the minimum number of contacts or plug-in connectors also in the case of a high-resolution detector arrangement (10), this comprises at least one detector module having a plurality of individual detector elements as well as an electrical unit having an electro-optical transducer for processing the signals of the detector elements and for generating optical detector module output signals.
摘要:
An X-ray unit according to the invention has a first arrangement (2) that is intended for the contactless and X-ray free measurement of first data of an object (1). A control unit (3) controls, on the basis of the first data of the object, a second arrangement (4) that measures X-ray data of the object by means of X-rays. With such an X-ray unit, first data 5 of the object can be obtained without using X-rays and control of the measurement of the X-ray data is made possible, with the result that, for the optimum quality of the X-ray data, only a minimum X-ray dose is applied to the object.
摘要:
The invention relates to a device for the detection and/or transmission of radiation, particularly an X-ray detector 1, that consists of a carrier 10 on which an array of detector modules 20 is arranged. The carrier 10 comprises holes 11 through which a ball at the backside of the detector modules 20 can be inserted in order to fix the modules such that they can still rotate to a certain degree. Due to this freedom, the sensor modules 20 can align themselves during assembly.
摘要:
A data processing device, comprising a plurality of emitter antennas (140) arranged on a movable data acquisition device and adapted to emit electromagnetic radiation including data acquired by the movable data acquisition device, a plurality of receiver antennas (150) each adapted to receive the electromagnetic radiation emitted by each of the plurality of emitter antennas (140), and a data processing unit (118) coupled to the plurality of receiver antennas (150) and adapted to extract the data acquired by the movable data acquisition device from the electromagnetic radiation received by the plurality of receiver antennas (150).
摘要:
The invention relates to the production of a scintillator system which comprises an Anti-Scatter-Grid (20) and an arrangement of scintillator cells. In a first processing step, a rectangular pattern of slots (11, 12) is cut into the top surface of a scintillator crystal (10). An Anti-Scatter-Grid (20) is then inserted with one end into said slots and fixed there with a glue. Finally, the top layer (thickness d) is separated from the scintillator crystal (10) yielding the desired scintillator system.
摘要:
A detector arrangement and/or a semiconductor-based image sensor with a plurality of detector elements or image pixels is described, which each have an integrated SD-(Sigma Delta) Modulator (20 to 29) or an integrated SD-A/D-(Sigma Delta Analog/Digital) converter (20 to 30), as well as particularly such a detector arrangement and/or such an image sensor on the basis of a CMOS-semiconductor. Particularly on the basis of the differential version and/or the multi-phase structure of the SD modulator and the SD-A/D converter, a detector arrangement and/or an image sensor with specially high noise robustness, a high dynamic range and a lesser noise can be produced, so that this is particularly suitable for usage in Computer Tomography (CT) apparatus.
摘要:
A detector arrangement (10) for detecting and transferring detector signals to a processing unit is described. This detector arrangement is provided in particular for use in a computer tomograph for high-resolution detection of X-rays, the processing unit being in the form of a central processing unit or buffer memory (Z) on a rotatable portion of a gantry (1). To transfer the detector signals with the minimum number of contacts or plug-in connectors also in the case of a high-resolution detector arrangement (10), this comprises at least one detector module having a plurality of individual detector elements as well as an electrical unit having an electro-optical transducer for processing the signals of the detector elements and for generating optical detector module output signals.
摘要:
The invention relates to an X-ray detector with detector elements (1) arranged in a layer. The detector elements (1) contain a scintillator element (2) for the conversion of X-rays (X) into photons (v), a photodiode (5) for detection of the photons (v), and a processing circuit (4) for the processing of electric signals generated by the photodiode (5). In order to protect the electronics (4) from X-rays a shielding (3) of variable effective thickness (d1, d2) is disposed in front of the electronics (4). This shielding (3) can in particular be L-shaped. By reduction of the effective thickness of the shielding (3) to a necessary minimum the volume of the scintillator unit (2) can be maximized.
摘要:
A method for manufacturing method for manufacturing a wearable monitoring system, said method comprising a step of providing a fabric-based elastic belt for housing of electrodes, the electrodes being provided by molding of an electrode material through the elastic belt. The fact that the necessary electrodes are integrated in the belt of the garment contributes to the user-friendliness of such a monitoring system. Furthermore such a system is washable which further contributes to the comfort of the patient.
摘要:
The c-arm x-ray system according to the present invention presents a system that provides at least one x-ray beam projection and an auxiliary projection without the need to rearranging or move elements of the c-arm to avoid inaccuracies through mechanical deflection of the supporting c-arm. This is achieved by comprising a main x-ray source, and at least one auxiliary x-ray source with a lower continuously radiated power than the main x-ray source and mechanically coupled to the main x-ray source, which is formed as a cold carbon nanotube based field emitter.