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公开(公告)号：US20070057192A1
公开(公告)日：2007-03-15
申请号：US10596152
申请日：2004-12-02
IPC分类号： G01T1/20
CPC分类号： G01T1/2018
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.
摘要翻译： 本发明涉及一种具有布置在一层中的检测器元件（1）的X射线检测器。 检测器元件（1）包括用于将X射线（X）转换成光子（v）的闪烁体元件（2），用于检测光子（v）的光电二极管（5）和处理电路（4） 用于处理由光电二极管（5）产生的电信号。 为了保护电子器件（4）免受X射线影响，可变有效厚度（d 1，d 2）的屏蔽层（3）设置在电子器件（4）的前面。 这种屏蔽（3）可以特别是L形。 通过将屏蔽（3）的有效厚度减小到所需的最小值，可以使闪烁体单元（2）的体积最大化。
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公开(公告)号：US08891726B2
公开(公告)日：2014-11-18
申请号：US12864880
申请日：2009-02-02
CPC分类号： A61B6/4007 , A61B6/032 , A61B6/4014 , A61B6/4028 , A61B6/4233 , A61B6/4447 , A61B6/4488
摘要： When performing nuclear (e.g., SPECT or PET) and CT scans on a patient, an imaging system (10) includes three or more carbon nanotube x-ray sources (20) are circumferentially spaced along an arc of a rotatable gantry (16) that spans a distance larger than a maximum cross-sectional dimension of a section of a patient (14) to be imaged. The x-ray sources are sequentially pulsed to emit x-rays for scanning a section of a patient (14) including a volume of interest (VOI) (13). Only one source (20) is in an ON state at a time to create a duty cycle, which reduces cooling time for the respective sources as well as radiation dose to the subject. X-rays traversing the patient (14) are received at a flat panel x-ray detector (22) that has a width smaller than the maximum cross-sectional dimension, which further reduces the weight and size of the system (10).
摘要翻译： 当对患者进行核（例如SPECT或PET）和CT扫描时，成像系统（10）包括三个或更多个碳纳米管x射线源（20）沿着可旋转机架（16）的圆弧沿圆周间隔开， 跨越要被成像的患者（14）的一部分的最大横截面尺寸的距离。 x射线源被顺序地脉冲以发射X射线，用于扫描包括感兴趣体积（VOI）（13）的患者（14）的一部分。 一次只有一个源（20）处于ON状态以创建占空比，这降低了各个源的冷却时间以及对被摄体的辐射剂量。 穿过患者（14）的X射线被接收在具有小于最大横截面尺寸的宽度的平板X射线检测器（22）上，这进一步减小了系统（10）的重量和尺寸。
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公开(公告)号：US20100322498A1
公开(公告)日：2010-12-23
申请号：US12864880
申请日：2009-02-02
IPC分类号： G06K9/00
CPC分类号： A61B6/4007 , A61B6/032 , A61B6/4014 , A61B6/4028 , A61B6/4233 , A61B6/4447 , A61B6/4488
摘要： When performing nuclear (e.g., SPECT or PET) and CT scans on a patient, an imaging system (10) includes three or more carbon nanotube x-ray sources (20) are circumferentially spaced along an arc of a rotatable gantry (16) that spans a distance larger than a maximum cross-sectional dimension of a section of a patient (14) to be imaged. The x-ray sources are sequentially pulsed to emit x-rays for scanning a section of a patient (14) including a volume of interest (VOI) (13). Only one source (20) is in an ON state at a time to create a duty cycle, which reduces cooling time for the respective sources as well as radiation dose to the subject. X-rays traversing the patient (14) are received at a flat panel x-ray detector (22) that has a width smaller than the maximum cross-sectional dimesion, which further reduces the weight and size of the system (10).
摘要翻译： 当对患者进行核（例如SPECT或PET）和CT扫描时，成像系统（10）包括三个或更多个碳纳米管x射线源（20）沿着可旋转机架（16）的圆弧沿圆周间隔开， 跨越要被成像的患者（14）的一部分的最大横截面尺寸的距离。 x射线源被顺序地脉冲以发射X射线，用于扫描包括感兴趣体积（VOI）（13）的患者（14）的一部分。 一次只有一个源（20）处于ON状态以创建占空比，这降低了各个源的冷却时间以及对被摄体的辐射剂量。 穿过患者（14）的X射线被接收在具有小于最大横截面尺寸的宽度的平板X射线检测器（22）上，这进一步减小了系统（10）的重量和尺寸。
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公开(公告)号：US07405408B2
公开(公告)日：2008-07-29
申请号：US10596152
申请日：2004-12-02
申请人： Gereon Vogtmeier , Roger Steadman , Klaus Jurgen Engel , Herfried Wieczorek , Wolfgang Eckenbach
发明人： Gereon Vogtmeier , Roger Steadman , Klaus Jurgen Engel , Herfried Wieczorek , Wolfgang Eckenbach
IPC分类号： G01T1/20
CPC分类号： G01T1/2018
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.
摘要翻译： 本发明涉及一种具有布置在一层中的检测器元件（1）的X射线检测器。 检测器元件（1）包括用于将X射线（X）转换成光子（v）的闪烁体元件（2），用于检测光子（v）的光电二极管（5）和处理电路（4） 用于处理由光电二极管（5）产生的电信号。 为了保护电子器件（4）免受X射线影响，可变有效厚度（d 1，d 2）的屏蔽层（3）设置在电子器件（4）的前面。 这种屏蔽（3）可以特别是L形。 通过将屏蔽（3）的有效厚度减小到所需的最小值，可以使闪烁体单元（2）的体积最大化。
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公开(公告)号：US08025817B2
公开(公告)日：2011-09-27
申请号：US11569068
申请日：2005-05-12
申请人： Ludmila Bolyasnikova , Vladimir Demidenko , Elena Gorokhova , Olga Ovsyannikova , Olga Khristich , Herfried Wieczorek , Cornelis Reinder Ronda , Gunter Zeitler
发明人： Ludmila Bolyasnikova , Vladimir Demidenko , Elena Gorokhova , Olga Ovsyannikova , Olga Khristich , Herfried Wieczorek , Cornelis Reinder Ronda , Gunter Zeitler
IPC分类号： C04B35/547 , C04B35/50 , C04B35/053 , C09K11/77
CPC分类号： C04B35/645 , C04B35/547 , C04B35/64 , C04B2235/3224 , C04B2235/3229 , C04B2235/446 , C04B2235/5409 , C04B2235/5436 , C04B2235/656 , C04B2235/6581 , C04B2235/662 , C04B2235/77 , C04B2235/786 , C04B2235/9653 , C09K11/7771
摘要： The present invention relates to a fluorescent ceramic having the general formula Gd2O2S doped with M, whereby M represents at least one element selected form the group Ce, Pr, Eu, Tb, Yb, Dy, Sm and/or Ho, whereby said fluorescent ceramic comprises a single phase in its volume; to a method for manufacturing a fluorescent ceramic using single-axis hot pressing; a detector for detecting ionizing radiation and to a use of said detector for detecting ionizing radiation. The method for manufacture of a fluorescent ceramic material using a single-axis hot pressing, comprises the steps: a) selecting a pigment powder of Gd2O2S doped with M, and M represents at least one element selected from the group of Eu, Tb, Yb, Dy, Sm, Ho, Ce and/or Pr, whereby the grain size of said powder used for hot-pressing is of 1 μm, and said hot-pressing is carried out at—a temperature of 1000° C. to 1400° C.; and/or—a pressure of 100 Mpa to 300 MPa; air annealing at a temperature of 700° C. to 1200° for a time period of 0.5 hours to 30 hours.
摘要翻译： 本发明涉及掺杂有M的具有通式Gd 2 O 2 S的荧光陶瓷，其中M表示选自Ce，Pr，Eu，Tb，Yb，Dy，Sm和/或Ho的至少一种元素，由此所述荧光陶瓷 包括其体积中的单相; 涉及使用单轴热压制造荧光陶瓷的方法; 用于检测电离辐射的检测器和用于检测电离辐射的所述检测器的用途。 使用单轴热压制造荧光陶瓷材料的方法包括以下步骤：a）选择掺杂有M的Gd 2 O 2 S的颜料粉末，M表示选自Eu，Tb，Yb中的至少一种元素 ，Dy，Sm，Ho，Ce和/或Pr，其中用于热压的所述粉末的晶粒尺寸为1μm，所述热压在1000℃至1400℃的温度下进行 C。; 和/或 - 100MPa〜300MPa的压力; 在700℃至1200℃的温度下进行空气退火0.5小时至30小时。
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公开(公告)号：US20100176301A1
公开(公告)日：2010-07-15
申请号：US12063769
申请日：2006-07-27
IPC分类号： G01T1/164
CPC分类号： G01T1/1642
摘要： A detector arrangement providing imaging information at the edge of the scintillator is provided. The detector arrangement provides complete information and improved spatial resolution. SiPMs can be used in place of PMTs in order to provide the geometrical coverage of the scintillator and improved spatial resolution. With such detector arrangements, the spatial resolution can be under 2 mm. Furthermore, the overall thickness of the detector can be substantially reduced and depth of interaction resolution is also improved.
摘要翻译： 提供了一种在闪烁体边缘处提供成像信息的检测器装置。 检测器布置提供完整的信息和改进的空间分辨率。 可以使用SiPM代替PMT，以提供闪烁体的几何覆盖和改善的空间分辨率。 利用这种检测器布置，空间分辨率可以在2mm以下。 此外，可以显着地减少检测器的总体厚度，并且还提高了相互作用分辨率的深度。
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公开(公告)号：US20060243913A1
公开(公告)日：2006-11-02
申请号：US10554342
申请日：2004-04-13
IPC分类号： G01T1/20
CPC分类号： G01T1/2008 , G01T1/2018
摘要： The invention relates to a detector element (1) for gamma radiation, which is particularly suitable for use in a PEF apparatus. The detector element (1) consists of two or more different conversion units (11, 12), which react to the absorption of a gamma quantum (y) with light emissions (λ1, λ2) of different spectral composition. A photodetector arrangement (30) may therefore discriminate between the sites of origin of the light emissions by means of their spectral characteristics.
摘要翻译： 本发明涉及用于γ辐射的检测器元件（1），其特别适用于PEF装置。 检测器元件（1）由两个或更多个不同的转换单元（11,12）组成，它们与具有光发射的λ量子（y）的吸收相反应（λ1， 2）不同的光谱组成。 因此，光电检测器装置（30）可以通过它们的光谱特性来区分光发射的原点。
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8.发明授权X-ray examination apparatus including a matrix of sensors and device measuring exposure of groups of sensors during execution of an X-ray exposure 失效X射线检查装置，包括传感器矩阵和测量X射线曝光执行期间传感器组的接触装置
公开(公告)号：US5194736A
公开(公告)日：1993-03-16
申请号：US789221
申请日：1991-11-07
摘要： An X-ray examination apparatus includes a sensor matrix (41) with sensors (1) which are arranged in rows and columns and each of which comprises an X-ray sensitive photosensor element (11) and a storage capacitance (12) which is connected parallel thereto. First electrodes of the sensors are connected to a counter-electrode (2) which receives a direct voltage, second electrodes being connected to an electric switch (13) provided for each sensor. For exposure measurement the currents flowing through the counter-electrode (electrodes) (2) and/or the electric switches (13) after the brief closing of the electric switches (13) and before the reading of the charges are used to measure and/or correct the exposure of groups of the sensors during the execution of an X-ray exposure.
摘要翻译： X射线检查装置包括具有传感器（1）的传感器矩阵（41），传感器（1）以行和列排列，每个传感器矩阵包括连接有X射线敏感光电元件（11）和存储电容（12） 与其平行。 传感器的第一电极连接到接收直接电压的对电极（2），第二电极连接到为每个传感器提供的电开关（13）。 对于曝光测量，在电开关（13）短暂关闭之后和在读取电荷之前，流过对电极（电极）（2）和/或电开关（13）的电流被用于测量和/ 或者在执行X射线曝光期间校正传感器组的曝光。
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公开(公告)号：US09014780B2
公开(公告)日：2015-04-21
申请号：US12942269
申请日：2010-11-09
CPC分类号： A61B6/032 , A61B6/037 , A61B6/4233 , A61B6/4417 , A61B6/487 , A61B6/5235 , A61B6/5264 , A61B10/0233 , A61B34/10 , A61B2034/107 , A61B2034/2065 , A61B2090/364 , G01R33/481
摘要： When performing image-guided biopsy of an anatomical structure in a patient, a target anatomical patient region containing biopsy target is imaged using both SPECT and XCT concurrently. 3D SPECT and XCT image data is fused to generate a fused 3D reference image that is overlaid on 2D patient image(s) generated during the biopsy procedure to generate an overlay image. The overlay image also includes a planned path or trajectory for a biopsy instrument. The 2D patient images are generated using SPECT and/or XCT, and are updated periodically to show biopsy instrument position and progress.
摘要翻译： 当在患者中进行解剖结构的图像引导活组织检查时，使用SPECT和XCT同时成像含有活组织检查靶的目标解剖学患者区域。 融合3D SPECT和XCT图像数据以产生融合的3D参考图像，其覆盖在活检过程中产生的2D患者图像上以产生覆盖图像。 覆盖图像还包括活检仪器的计划路径或轨迹。 使用SPECT和/或XCT生成2D患者图像，并且周期性地更新以显示活检仪器的位置和进展。
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公开(公告)号：US20100294940A1
公开(公告)日：2010-11-25
申请号：US12777285
申请日：2010-05-11
申请人： Herfried Wieczorek
发明人： Herfried Wieczorek
CPC分类号： H01L27/14663 , A61B6/037 , G01T1/2018 , G01T1/2985
摘要： A radiation detector module for use in nuclear medical imagers employing radiation transmission or radiopharmaceuticals includes a rigid, optically opaque grid defined around a plurality of scintillator crystals. The grid defines a plurality of cells in which each scintillator crystal is completely disposed within in such a manner that an air layer exists between the scintillator crystal and the walls of the grid. A plurality of photoelectric detectors, each of which is associated with a corresponding scintillator crystal, are optically coupled to corresponding scintillator crystals by an optical coupling layer disposed within the cell.
摘要翻译： 用于使用辐射透射或放射性药物的核医学成像器中的辐射检测器模块包括围绕多个闪烁体晶体限定的刚性的光学不透明网格。 栅格限定多个单元，其中每个闪烁体晶体完全设置在闪烁体晶体和栅格壁之间存在空气层的方式。 每个与对应的闪烁体晶体相关联的多个光电检测器通过设置在单元内的光耦合层光耦合到相应的闪烁体晶体。
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