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1.发明申请Method For Correcting Detector Data Of An X-Ray Detector And X-Ray Recording System 有权用于校正X射线检测器和X射线记录系统的检测器数据的方法公开(公告)号：US20120243660A1
公开(公告)日：2012-09-27
申请号：US13426983
申请日：2012-03-22
申请人： Steffen Kappler , Johannes Kippes , Edgar Kraft , Daniel Niederlöhner , Thomas Reichel , Christian Schröter , Thomas Von Der Haar
发明人： Steffen Kappler , Johannes Kippes , Edgar Kraft , Daniel Niederlöhner , Thomas Reichel , Christian Schröter , Thomas Von Der Haar
IPC分类号： A61B6/03
摘要： In a method, with a current measurement, the history of the radiation exposure of the X-ray detector is taken into account with respect to the overall X-ray detector or subareas of the X-ray detector, in respect of a reduction in the measurement sensitivity produced as a result and a recovery of the reduction in the measurement sensitivity, and the determined measuring signal is corrected with a correction factor which is dependent on the history of the radiation exposure. Furthermore, an X-ray recording system includes a detector which includes a plurality of detector elements, which are read out in groups channel by channel and a read-out apparatus with computer-assisted device for correcting read-out detector data prior to a further processing of the detector data to form projective or tomographic images.
摘要翻译： 在一种方法中，通过电流测量，关于X射线检测器的整个X射线检测器或子区域考虑X射线检测器的辐射暴露的历史，关于减少 作为结果产生的测量灵敏度和测量灵敏度的降低的恢复，并且所确定的测量信号用取决于辐射暴露的历史的校正因子来校正。 此外，X射线记录系统包括检测器，其包括多个检测器元件，其逐个通道分组读出;以及读出装置，具有计算机辅助装置，用于在进一步检测之前校正读出检测器数据 处理检测器数据以形成投影或断层图像。
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2.发明授权Method for correcting detector data of an X-ray detector and X-ray recording system 有权用于校正X射线检测器和X射线记录系统的检测器数据的方法公开(公告)号：US08915647B2
公开(公告)日：2014-12-23
申请号：US13426983
申请日：2012-03-22
申请人： Steffen Kappler , Johannes Kippes , Edgar Kraft , Daniel Niederlöhner , Thomas Reichel , Christian Schröter , Thomas Von Der Haar
发明人： Steffen Kappler , Johannes Kippes , Edgar Kraft , Daniel Niederlöhner , Thomas Reichel , Christian Schröter , Thomas Von Der Haar
摘要： In a method, with a current measurement, the history of the radiation exposure of the X-ray detector is taken into account with respect to the overall X-ray detector or subareas of the X-ray detector, in respect of a reduction in the measurement sensitivity produced as a result and a recovery of the reduction in the measurement sensitivity, and the determined measuring signal is corrected with a correction factor which is dependent on the history of the radiation exposure. Furthermore, an X-ray recording system includes a detector which includes a plurality of detector elements, which are read out in groups channel by channel and a read-out apparatus with computer-assisted device for correcting read-out detector data prior to a further processing of the detector data to form projective or tomographic images.
摘要翻译： 在一种方法中，通过电流测量，关于X射线检测器的整个X射线检测器或子区域考虑X射线检测器的辐射暴露的历史，关于减少 作为结果产生的测量灵敏度和测量灵敏度的降低的恢复，并且所确定的测量信号用取决于辐射暴露的历史的校正因子来校正。 此外，X射线记录系统包括检测器，其包括多个检测器元件，其逐个通道分组读出;以及读出装置，具有计算机辅助装置，用于在进一步检测之前校正读出检测器数据 处理检测器数据以形成投影或断层图像。
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3.发明申请METHOD FOR DETECTING X-RAY RADIATION AND DETECTOR SYSTEM WITH DIRECT CONVERSION DETECTORS 有权用于检测具有直接转换检测器的X射线辐射和探测器系统的方法公开(公告)号：US20120235052A1
公开(公告)日：2012-09-20
申请号：US13419461
申请日：2012-03-14
IPC分类号： G01T1/18
摘要： A method and a detector system are disclosed for the photon-counting detection of x-ray radiation with direct conversion detectors. In at least one embodiment of the method, as a function of the existing radiation energy, current and/or voltage pulses which are largely proportional thereto are generated, and the generated current and voltage pulses are counted in the detector when a predetermined current and/or voltage source is exceeded, whereby a threshold is used as a predetermined current and/or voltage threshold, which corresponds to a detection of a photon with an energy which is less than the k-edge of the detector material used.
摘要翻译： 公开了一种利用直接转换检测器进行X射线辐射的光子计数检测的方法和检测器系统。 在该方法的至少一个实施例中，作为现有辐射能的函数，产生与其大部分成比例的电流和/或电压脉冲，并且当预定电流和/ 或超过电压源，由此将阈值用作预定的电流和/或电压阈值，其对应于具有小于所使用的检测器材料的k边缘的能量的光子的检测。
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4.发明授权Method for detecting x-ray radiation and detector system with direct conversion detectors 有权用直接转换检测器检测x射线辐射和检测器系统的方法公开(公告)号：US09164183B2
公开(公告)日：2015-10-20
申请号：US13419461
申请日：2012-03-14
摘要： A method and a detector system are disclosed for the photon-counting detection of x-ray radiation with direct conversion detectors. In at least one embodiment of the method, as a function of the existing radiation energy, current and/or voltage pulses which are largely proportional thereto are generated, and the generated current and voltage pulses are counted in the detector when a predetermined current and/or voltage source is exceeded, whereby a threshold is used as a predetermined current and/or voltage threshold, which corresponds to a detection of a photon with an energy which is less than the k-edge of the detector material used.
摘要翻译： 公开了一种利用直接转换检测器进行X射线辐射的光子计数检测的方法和检测器系统。 在该方法的至少一个实施例中，作为现有辐射能的函数，产生与其大部分成比例的电流和/或电压脉冲，并且当预定电流和/ 或超过电压源，由此将阈值用作预定的电流和/或电压阈值，其对应于具有小于所使用的检测器材料的k边缘的能量的光子的检测。
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公开(公告)号：US20100074397A1
公开(公告)日：2010-03-25
申请号：US12585579
申请日：2009-09-18
摘要： A method is disclosed for detecting X-ray radiation from an X-ray emitter. In at least one embodiment of the method, an electric pulse with a pulse amplitude characteristic of the energy of a quantum is generated when a quantum of the X-ray radiation impinges on a sensor, wherein a number of threshold energies are predetermined. When the pulse amplitude corresponding to the respective energy is exceeded, a signal is emitted each time the pulse amplitude corresponding to a respective threshold energy is exceeded. At least one embodiment of the method permits reliable and high-quality imaging, even in image regions with high X-ray quanta rates. To this end, at least one of the threshold energies is predetermined such that it is higher than the maximum energy of the X-ray spectrum emitted by the X-ray emitter.
摘要翻译： 公开了一种用于检测来自X射线发射器的X射线辐射的方法。 在该方法的至少一个实施例中，当X射线辐射的量子撞击到传感器上时，产生具有量子能量的脉冲幅度特性的电脉冲，其中预定数量的阈值能量。 当超过对应于各自能量的脉冲幅度时，每当超过对应于相应的阈值能量的脉冲幅度时，发出信号。 该方法的至少一个实施例允许可靠和高质量的成像，即使在具有高X射线量子速率的图像区域中。 为此，阈值能量中的至少一个是预定的，使得它高于由X射线发射器发射的X射线光谱的最大能量。
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公开(公告)号：US08422627B2
公开(公告)日：2013-04-16
申请号：US12585579
申请日：2009-09-18
IPC分类号： A61B6/03
摘要： A method is disclosed for detecting X-ray radiation from an X-ray emitter. In at least one embodiment of the method, an electric pulse with a pulse amplitude characteristic of the energy of a quantum is generated when a quantum of the X-ray radiation impinges on a sensor, wherein a number of threshold energies are predetermined. When the pulse amplitude corresponding to the respective energy is exceeded, a signal is emitted each time the pulse amplitude corresponding to a respective threshold energy is exceeded. At least one embodiment of the method permits reliable and high-quality imaging, even in image regions with high X-ray quanta rates. To this end, at least one of the threshold energies is predetermined such that it is higher than the maximum energy of the X-ray spectrum emitted by the X-ray emitter.
摘要翻译： 公开了一种用于检测来自X射线发射器的X射线辐射的方法。 在该方法的至少一个实施例中，当X射线辐射的量子撞击到传感器上时，产生具有量子能量的脉冲振幅特性的电脉冲，其中预定了许多阈值能量。 当超过对应于各自能量的脉冲幅度时，每当超过对应于相应的阈值能量的脉冲幅度时，发出信号。 该方法的至少一个实施例允许可靠和高质量的成像，即使在具有高X射线量子速率的图像区域中。 为此，阈值能量中的至少一个是预定的，使得它高于由X射线发射器发射的X射线光谱的最大能量。
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7.发明授权Circuit arrangement for a directly converting detector and likewise the use thereof and a method for reading a directly converting detector 有权用于直接转换检测器的电路布置，以及其用途以及用于读取直接转换检测器的方法公开(公告)号：US09075147B2
公开(公告)日：2015-07-07
申请号：US13420903
申请日：2012-03-15
申请人： Christian Schröter
发明人： Christian Schröter
摘要： A circuit arrangement is disclosed for a detector. In at least one embodiment, the circuit arrangement includes a directly-converting semi-conductor material and pulse-shaper in the signal readout electronics assembly. A method is disclosed for a readout of count impulses generated in the semi-conductor material, wherein part of the pulse-shaper is equipped with a relatively longer shaping time constant and a different part of the pulse-shaper is equipped with a relatively shorter shaping time constant.
摘要翻译： 公开了一种用于检测器的电路装置。 在至少一个实施例中，电路装置包括信号读出电路组件中的直接转换半导体材料和脉冲整形器。 公开了一种用于读出在半导体材料中产生的计数脉冲的方法，其中脉冲整形器的一部分配备有相对较长的成型时间常数，并且脉冲整形器的不同部分配备有较短的成形 时间常数。
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8.发明授权X-ray detector comprising a directly converting semiconductor layer and calibration method for such an X-ray detector 有权X射线检测器包括直接转换半导体层和用于这种X射线检测器的校准方法公开(公告)号：US08389928B2
公开(公告)日：2013-03-05
申请号：US13088448
申请日：2011-04-18
IPC分类号： G01D18/00
摘要： An X-ray detector includes a directly converting semiconductor layer for converting an incident radiation into electrical signals with a band gap energy characteristic of the semiconductor layer, and at least one light source for coupling light into the semiconductor layer, wherein the generated light, for the simulation of incident X-ray quanta, has an energy above the band gap energy of the semiconductor layer. One embodiment includes at least one evaluation unit for calculating an evaluation signal from the electrical signals generated when the light is coupled into the semiconductor layer, and at least one calibration unit for calibrating at least one pulse discriminator on the basis of the evaluation signal. This provides the prerequisites for a rapidly repeatable calibration of the X-ray detector taking into account of the present polarization state without using X-ray radiation. Another embodiment additionally relates to a calibration method for such an X-ray detector.
摘要翻译： X射线检测器包括用于将入射辐射转换成具有半导体层的带隙能量特性的电信号的直接转换半导体层和用于将光耦合到半导体层中的至少一个光源，其中所产生的光用于 入射X射线量子点的模拟具有高于半导体层带隙能量的能量。 一个实施例包括至少一个评估单元，用于根据当光耦合到半导体层中时产生的电信号计算评估信号;以及至少一个校准单元，用于基于评估信号校准至少一个脉冲鉴别器。 这提供了在不使用X射线辐射的情况下考虑到目前的极化状态来快速重复地校准X射线检测器的先决条件。 另一个实施例另外涉及这种X射线检测器的校准方法。
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9.发明申请Circuit Arrangement For A Directly Converting Detector And Likewise The UseThereof And A Method For Reading A Directly Converting Detector 有权用于直接转换检测器的电路布置和类似的用途以及用于读取直接转换检测器的方法公开(公告)号：US20120236986A1
公开(公告)日：2012-09-20
申请号：US13420903
申请日：2012-03-15
申请人： Christian Schröter
发明人： Christian Schröter
摘要： A circuit arrangement is disclosed for a detector. In at least one embodiment, the circuit arrangement includes a directly-converting semi-conductor material and pulse-shaper in the signal readout electronics assembly. A method is disclosed for a readout of count impulses generated in the semi-conductor material, wherein part of the pulse-shaper is equipped with a relatively longer shaping time constant and a different part of the pulse-shaper is equipped with a relatively shorter shaping time constant.
摘要翻译： 公开了一种用于检测器的电路装置。 在至少一个实施例中，电路装置包括信号读出电路组件中的直接转换半导体材料和脉冲整形器。 公开了一种用于读出在半导体材料中产生的计数脉冲的方法，其中脉冲整形器的一部分配备有相对较长的成型时间常数，并且脉冲整形器的不同部分配备有较短的成形 时间常数。
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10.发明申请X-RAY RADIATION DETECTOR FOR DETECTING IONIZING RADIATION, IN PARTICULAR FOR USE IN A CT SYSTEM 有权用于检测放射性的X射线辐射检测器，特别适用于CT系统公开(公告)号：US20100246758A1
公开(公告)日：2010-09-30
申请号：US12731179
申请日：2010-03-25
摘要： An X-ray radiation detector is disclosed for detecting ionizing radiation, in particular for use in a CT system, with a multiplicity of detector elements. In at least one embodiment, each detector element includes a semiconductor used as detector material with an upper side facing the radiation and a lower side facing away from the radiation, at least two electrodes, wherein one electrode is formed on the upper side of the semiconductor by a metallization layer, and the sum of all detector elements forms a base, which has a base normal at each point. In at least one embodiment, the invention is distinguished by the fact that the upper side of the semiconductor has a surface structure with a surface normal at each point, wherein the surface normal at least in part subtends an angle to the base normal. In at least one embodiment, the invention furthermore relates to a CT system provided with an X-ray radiation detector, which advantageously includes a multiplicity of detector elements structured according to at least one embodiment of the invention.
摘要翻译： 公开了一种用于检测电离辐射的X射线辐射检测器，特别是用于CT系统中的多个检测器元件。 在至少一个实施例中，每个检测器元件包括用作检测器材料的半导体，其具有面向辐射的上侧和背离辐射的下侧，至少两个电极，其中一个电极形成在半导体的上侧 通过金属化层，并且所有检测器元件的总和形成基部，其在每个点处具有基准法线。 在至少一个实施例中，本发明的区别在于，半导体的上侧具有在每个点处具有表面法线的表面结构，其中表面法线至少部分地对准与基准法线的角度。 在至少一个实施例中，本发明还涉及一种具有X射线辐射检测器的CT系统，其有利地包括根据本发明的至少一个实施例构造的多个检测器元件。
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