-
11.发明授权Method and circuit arrangement for determining the radiation intensity using directly counting detector 有权使用直接计数检测器确定辐射强度的方法和电路装置公开(公告)号：US07943907B2
公开(公告)日：2011-05-17
申请号：US12320160
申请日：2009-01-21
申请人： Björn-Oliver Eversmann , Björn Heismann , Debora Henseler , Silke Janssen , Daniel Niederlöhner
发明人： Björn-Oliver Eversmann , Björn Heismann , Debora Henseler , Silke Janssen , Daniel Niederlöhner
IPC分类号： G01J1/42
CPC分类号： G01T1/17
摘要： 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.
摘要翻译： 公开了一种用于使用计数检测器或检测器元件确定辐射强度的方法和电路装置，其中被部分吸收或吸收的x射线辐射光子产生电信号，其脉冲数和脉冲高度相关 到入射辐射强度，并且至少通过对脉冲进行计数确定辐射强度。 根据本发明的至少一个实施例，入射到至少一个检测器或检测器元件上的信号脉冲由至少一个连续工作的脉冲高度鉴别器和至少一个以时钟方式操作的脉冲高度鉴别器同时检测， 借助这两项检测信息确定入射信号脉冲数。
-
12.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。
-
13.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。
-
14.发明授权Method and circuit arrangement for determining an intensity of ionizing radiation 有权用于确定电离辐射强度的方法和电路装置公开(公告)号：US08513614B2
公开(公告)日：2013-08-20
申请号：US12766371
申请日：2010-04-23
申请人： Edgar Kraft , Daniel Niederlöhner
发明人： Edgar Kraft , Daniel Niederlöhner
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , G01T1/1647 , G01T1/17
摘要： A method is disclosed for determining the intensity of ionizing radiation using a detector with a multiplicity of direct-conversion detector elements, in particular for use in a CT system. In at least one embodiment, the method includes supplying the signal pulses to a preamplifier/signal conditioner, supplying the amplified and conditioned signal pulses to two pulse-height discriminators connected in parallel or in series, registering by a combination logic, and transmitting the registered signal pulses to a counter. In at least one embodiment, provision is made for feedback, by which, firstly, the pulse shape of the signal pulses and, secondly, the clock rate of the clocked pulse-height discriminator are set as a function of the signal frequency. Furthermore, at least one embodiment of the invention relates to a circuit arrangement for measuring signals of a direct-conversion detector, in particular for use in a CT system, by which the method according to at least one embodiment of the invention can be carried out.
摘要翻译： 公开了一种使用具有多个直接转换检测器元件的检测器来确定电离辐射的强度的方法，特别是用于CT系统中的方法。 在至少一个实施例中，该方法包括将信号脉冲提供给前置放大器/信号调节器，将经放大和调节的信号脉冲提供给并联或串联连接的两个脉冲高度鉴别器，通过组合逻辑进行寄存，并发送注册 信号脉冲到计数器。 在至少一个实施例中，提供反馈，首先，将信号脉冲的脉冲形状，以及其次，时钟脉冲高度鉴别器的时钟速率设置为信号频率的函数。 此外，本发明的至少一个实施例涉及用于测量直接转换检测器的信号的电路装置，特别是在CT系统中使用，通过该装置可以执行根据本发明的至少一个实施例的方法 。
-
15.发明申请METHOD AND CIRCUIT ARRANGEMENT FOR DETERMINING AN INTENSITY OF IONIZING RADIATION 有权用于确定离子辐射强度的方法和电路布置公开(公告)号：US20100270473A1
公开(公告)日：2010-10-28
申请号：US12766371
申请日：2010-04-23
申请人： Edgar Kraft , Daniel Niederlöhner
发明人： Edgar Kraft , Daniel Niederlöhner
CPC分类号： G01T1/24 , G01T1/1647 , G01T1/17
摘要： A method is disclosed for determining the intensity of ionizing radiation using a detector with a multiplicity of direct-conversion detector elements, in particular for use in a CT system. In at least one embodiment, the method includes supplying the signal pulses to a preamplifier/signal conditioner, supplying the amplified and conditioned signal pulses to two pulse-height discriminators connected in parallel or in series, registering by a combination logic, and transmitting the registered signal pulses to a counter. In at least one embodiment, provision is made for feedback, by which, firstly, the pulse shape of the signal pulses and, secondly, the clock rate of the clocked pulse-height discriminator are set as a function of the signal frequency. Furthermore, at least one embodiment of the invention relates to a circuit arrangement for measuring signals of a direct-conversion detector, in particular for use in a CT system, by which the method according to at least one embodiment of the invention can be carried out.
摘要翻译： 公开了一种使用具有多个直接转换检测器元件的检测器来确定电离辐射的强度的方法，特别是用于CT系统中的方法。 在至少一个实施例中，该方法包括将信号脉冲提供给前置放大器/信号调节器，将经放大和调节的信号脉冲提供给并联或串联连接的两个脉冲高度鉴别器，通过组合逻辑进行寄存，并发送注册 信号脉冲到计数器。 在至少一个实施例中，提供反馈，首先，将信号脉冲的脉冲形状，以及其次，时钟脉冲高度鉴别器的时钟速率设置为信号频率的函数。 此外，本发明的至少一个实施例涉及用于测量直接转换检测器的信号的电路装置，特别是在CT系统中使用，通过该装置可以执行根据本发明的至少一个实施例的方法 。
-
16.发明申请METHOD AND COMPUTED TOMOGRAPHY SYSTEM FOR GENERATING TOMOGRAPHIC IMAGE DATASETS 有权用于产生图像图像数据的方法和计算机图像系统公开(公告)号：US20120301001A1
公开(公告)日：2012-11-29
申请号：US13478502
申请日：2012-05-23
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/482 , A61B6/503 , A61B6/5235 , G06T11/006 , G06T2211/412
摘要： A method and a dual-source CT are disclosed. In at least one embodiment, the projection data of the integrating and of the counting detector from a quarter rotation of the gantry is used jointly for reconstruction of a first tomographic image dataset, the energy-resolved projection data of the counting detector from at least one half rotation of the gantry being used for reconstruction of at least a second material-selective tomographic image dataset, and at least one tomographic result image dataset being formed by overlaying the first tomographic image dataset with the material selection of the second image dataset.
摘要翻译： 公开了一种方法和双源CT。 在至少一个实施例中，来自台架的四分之一旋转的积分和计数检测器的投影数据共同用于重建第一断层图像数据集，计数检测器的能量分辨投影数据至少从一个 用于重构至少第二材料选择性断层摄影图像数据集的台架的半旋转，以及通过用第二图像数据集的材料选择覆盖第一断层图像数据集而形成的至少一个断层图像结果图像数据集。
-
17.发明授权Method and computed tomography system for generating weighted tomographic image datasets 有权用于生成加权断层图像数据集的方法和计算机断层摄影系统公开(公告)号：US09044189B2
公开(公告)日：2015-06-02
申请号：US13478572
申请日：2012-05-23
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/4233 , A61B6/482 , A61B6/5235 , G01T1/2985
摘要： A method and a computed tomography system are disclosed for generating tomographic image datasets of a measurement object. The computed tomography system includes at least two simultaneously operable sets of detector elements which jointly scan a measurement object from a multiplicity of projection angles in an integrating manner on the one hand and an energy-resolving manner on the other hand. In at least one embodiment, the method includes determining a first projection dataset from measurement data recorded in an integrating manner. Further, at least one second projection dataset is determined from energy-resolved measurement data, and in addition a weighted tomographic result image dataset is calculated based on weighted use of the first and the second projection dataset, the weighting being applied to the projection data or the tomographic image data reconstructed therefrom.
摘要翻译： 公开了一种用于产生测量对象的断层图像数据集的方法和计算机断层摄影系统。 计算机断层摄影系统包括至少两个可同时操作的检测器元件组，其一方面以积分方式从多个投影角度共同扫描测量对象，另一方面以能量分辨方式。 在至少一个实施例中，该方法包括从以积分方式记录的测量数据确定第一投影数据集。 此外，从能量分辨测量数据确定至少一个第二投影数据集，此外，基于第一和第二投影数据集的加权使用计算加权断层成像图像数据集，加权应用于投影数据或 从其重建的断层图像数据。
-
18.发明申请COMPUTED TOMOGRAPHY SYSTEM WITH INTEGRATING AND COUNTING DETECTOR ELEMENTS 审中-公开具有集成和计数检测器元件的计算机图像系统公开(公告)号：US20120300897A1
公开(公告)日：2012-11-29
申请号：US13478593
申请日：2012-05-23
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/4233 , A61B6/4241 , G16H40/63
摘要： A computed tomography system includes at least two simultaneously operatable sets of detector elements, with at least one first set of integrating detector elements being designed for integrating radiation measurement and at least one second set of counting detector elements being designed to disperse an incident radiation spectrum into at least two energy bins; and includes a computer system for controlling the CT system and at least once capturing the measurement data of the detector elements with a memory and computer programs contained therein. The computer system is provided with programming so that a first mode is provided for operating only the at least one first set of integrating detector elements and a second mode is provided for the additional or sole operation of the at least one second set of counting detector elements.
摘要翻译： 计算机断层摄影系统包括至少两个可同时操作的检测器元件集合，其中至少一个第一组积分检测器元件被设计用于积分辐射测量值，并且至少一个第二组计数检测器元件被设计成将入射的辐射光谱分散到 至少两个能量箱; 并且包括用于控制CT系统并且至少一次利用其中包含的存储器和计算机程序捕获检测器元件的测量数据的计算机系统。 计算机系统被提供有编程，使得第一模式被提供用于仅操作至少一个第一组积分检测器元件，并且为第二组计数检测器元件的附加或唯一操作提供第二模式 。
-
19.发明申请Adapting Activation Parameters Used to Generate a Pulse Sequence when Activating a Magnetic Resonance System 审中-公开适应用于激活磁共振系统时产生脉冲序列的激活参数公开(公告)号：US20150219736A1
公开(公告)日：2015-08-06
申请号：US14616471
申请日：2015-02-06
申请人： Daniel Niederlöhner , Dominik Paul , Jörg Roland
发明人： Daniel Niederlöhner , Dominik Paul , Jörg Roland
CPC分类号： G01R33/543 , A61B5/055 , G01R33/288 , G01R33/385
摘要： A method for adapting activation parameters used to generate a pulse sequence when activating a magnetic resonance system is provided. The method includes determining stimulation values for the pulse sequence based on predefined activation parameters. The stimulation values represent a stimulation exposure of a patient. Test regions that exhibit stimulation maxima are identified in the pulse sequence, and the identified test regions are tested with respect to compliance with a predefined stimulation limit value.
摘要翻译： 提供了一种用于在激活磁共振系统时适应用于产生脉冲序列的激活参数的方法。 该方法包括基于预定义的激活参数确定脉冲序列的刺激值。 刺激值表示患者的刺激暴露。 在脉冲序列中鉴定显示刺激最大值的测试区域，并且根据预定义的刺激极限值测试鉴定的测试区域。
-
20.发明授权Detector arrangement of an imaging system detector detecting ionizing radiation with air cooling and method for cooling the detector arrangement 有权用空气冷却器检测电离辐射的成像系统检测器的检测器布置和用于冷却检测器装置的方法公开(公告)号：US08987673B2
公开(公告)日：2015-03-24
申请号：US13686178
申请日：2012-11-27
申请人： Daniel Niederlöhner , Claus Pohan
发明人： Daniel Niederlöhner , Claus Pohan
CPC分类号： G01T1/16 , G01T1/1641 , G01T1/1648
摘要： A detector arrangement of an imaging system detector detecting ionizing radiation includes a detector carrier, a plurality of detector modules attached to the detector carrier, and a collimator disposed in the radiation direction in front of the detector modules which are disposed on the incident radiation measurement side. In at least one embodiment, at least one air gap is included for conveying cooling air is disposed between the collimator and the measurement sensors of the detector modules. A method is also disclosed for cooling a detector arrangement of a detector rotating around a system axis with a plurality of measurement sensors disposed next to one another and a collimator arranged in the radiation direction in front of the measurement sensors, wherein cooling air is conveyed in or against the system axis direction between the collimator and the measurement sensors which directly cools the surface of the measurement sensors.
摘要翻译： 检测电离辐射的成像系统检测器的检测器装置包括检测器载体，附接到检测器载体的多个检测器模块以及设置在入射辐射测量侧的检测器模块前面的辐射方向上的准直仪 。 在至少一个实施例中，包括至少一个空气间隙，用于输送冷却空气设置在准直器和检测器模块的测量传感器之间。 还公开了一种用于冷却检测器装置的检测器装置的方法，所述检测器装置围绕系统轴线旋转，所述检测器装置具有彼此相邻布置的多个测量传感器和沿测量传感器前方的辐射方向布置的准直器，其中冷却空气被传送 或者在准直仪和直接冷却测量传感器表面的测量传感器之间的系统轴线方向上。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.032 秒)
