Method and tomography unit for the reconstruction of a tomographic display of an object
    12.
    发明授权
    Method and tomography unit for the reconstruction of a tomographic display of an object 失效
    用于重建物体的断层显像的方法和断层摄影单元

    公开(公告)号:US07447295B2

    公开(公告)日:2008-11-04

    申请号:US11584544

    申请日:2006-10-23

    Abstract: A method is disclosed for reconstructing a tomographic representation of an object from projection data off a moving radiation source through this object onto a detector, filtering and back projection of the projection data being executed in the reconstruction. In an embodiment of the method, by using at least one identical spatial arrangement of the radiation source, the detector and a test object instead of the object to be scanned, there is determined by test projections and an iterative reconstruction technique, a filter that in the given arrangement results in an optimum filtering and back projection of the projection data of the test object for the tomographic representation. Further, the object is scanned instead of the test object in the given arrangement and projection data are determined. Finally, the reconstruction of the tomographic representation is carried out using these projection data and the filter determined. Moreover, an embodiment of a tomography unit for carrying out this method is also disclosed.

    Abstract translation: 公开了一种用于将通过该物体的运动辐射源的投影数据从物体重建成检测器的方法,对重建中正在执行的投影数据进行滤波和反投影。 在该方法的一个实施例中,通过使用辐射源,检测器和测试对象的至少一个相同的空间排列而不是要扫描的对象,通过测试投影和迭代重建技术来确定滤波器, 给定的布置导致用于断层图像的测试对象的投影数据的最佳滤波和反投影。 此外,在给定的布置中扫描对象而不是测试对象,并且确定投影数据。 最后,使用这些投影数据并确定滤波器来进行断层图像的重建。 此外,还公开了用于执行该方法的断层摄影单元的实施例。

    Device to measure a radiation dose
    13.
    发明授权
    Device to measure a radiation dose 有权
    测量放射剂量的装置

    公开(公告)号:US07227152B2

    公开(公告)日:2007-06-05

    申请号:US10809966

    申请日:2004-03-26

    CPC classification number: G01T1/026 G01T1/023

    Abstract: A device to measure a radiation dose, in particular an x-ray radiation dose, which absorbs radiation and provides an absorption-conditional output signal representing a measurement for the dose, has at least one absorption structure disposed on a foil-like carrier, made from thin-film layers disposed on top of one another that form at least one thin-film diode structure that supplies the output signal.

    Abstract translation: 测量辐射剂量的装置,特别是X射线辐射剂量,其吸收辐射并提供表示剂量的测量的吸收条件输出信号,具有设置在箔状载体上的至少一个吸收结构,制成 从设置在彼此顶部的薄膜层形成至少一个提供输出信号的薄膜二极管结构。

    Scattered radiation grid or collimator
    15.
    发明申请
    Scattered radiation grid or collimator 有权
    散射辐射网格或准直仪

    公开(公告)号:US20060115052A1

    公开(公告)日:2006-06-01

    申请号:US11282372

    申请日:2005-11-17

    Abstract: A scattered radiation grid for absorbing secondary radiation scattered by an object comprises a support, and a plurality of spaced-apart absorbing elements affixed to the support. The plurality of absorbing elements comprises relatively small tubes or pins affixed to the support via plug-in or clamping fixtures.

    Abstract translation: 用于吸收由物体散射的次级辐射的散射辐射网格包括支撑件和固定到支撑件上的多个间隔开的吸收元件。 多个吸收元件包括通过插入或夹紧固定件固定到支撑件上的较小管或销。

    Antiscatter grid or collimator
    16.
    发明授权
    Antiscatter grid or collimator 失效
    反散射网格或准直仪

    公开(公告)号:US06968041B2

    公开(公告)日:2005-11-22

    申请号:US10772471

    申请日:2004-02-06

    CPC classification number: G21K1/025 B33Y80/00

    Abstract: An antiscatter device, such as a grid or collimator, is for absorption of secondary radiation which is scattered by an object. The antiscatter device includes an absorption structure with a plurality of elements. Two or more elements form a cell-like structure with a beam channel for primary radiation. Further, the elements and thus the cell-like structures are arranged and/or formed such that the absorption structure has a non-regular, aperiodic pattern.

    Abstract translation: 诸如栅格或准直器的反散射装置用于吸收被物体散射的二次辐射。 反散装置包括具有多个元件的吸收结构。 两个或多个元件形成具有用于初级辐射的束通道的电池状结构。 此外,元件和细胞样结构被布置和/或形成为使得吸收结构具有非规则的非周期性图案。

    X-ray diagnostics installation with a flexible solid state X-ray detector
    17.
    发明授权
    X-ray diagnostics installation with a flexible solid state X-ray detector 有权
    X射线诊断安装采用灵活的固态X射线探伤仪

    公开(公告)号:US06856670B2

    公开(公告)日:2005-02-15

    申请号:US10206730

    申请日:2002-07-26

    Inventor: Martin Hoheisel

    CPC classification number: G01T1/2018 H01L27/14658

    Abstract: An X-ray diagnostics installation has an X-ray tube, a voltage generator, a solid state X-ray detector, an image system and a playback device. The solid state X-ray detector is fashioned flexible and includes a flexible housing, a flexible substrate with a matrix of thin-film transistors (TFT), and a flexible X-ray converter.

    Abstract translation: X射线诊断装置具有X射线管,电压发生器,固态X射线检测器,图像系统和回放装置。 固态X射线检测器是灵活的,包括柔性外壳,具有薄膜晶体管(TFT)矩阵的柔性基板和柔性X射线转换器。

    X-ray detector with an applied stray radiation grid, and method for applying a stray radiation grid to an X-ray detector
    18.
    发明授权
    X-ray detector with an applied stray radiation grid, and method for applying a stray radiation grid to an X-ray detector 失效
    具有应用杂散辐射网格的X射线检测器,以及将杂散辐射栅格应用于X射线检测器的方法

    公开(公告)号:US06847701B2

    公开(公告)日:2005-01-25

    申请号:US10277071

    申请日:2002-10-21

    CPC classification number: G21K1/025 B33Y40/00 B33Y80/00

    Abstract: In an X-ray detector and method for applying a stray radiation grid onto an X-ray detector having detector elements arranged in a matrix that form a detector surface having detection regions sensitive to X-rays and less sensitive intermediate regions, a basic structure for the stray radiation grid is built up over the detector surface directly on the X-ray detector with a rapid prototyping technique and is subsequently coated or filled with a material that is highly absorbent for X-radiation. An absorbent structure thus arises that lies over the less sensitive intermediate regions of the detector surface. Moiré disturbances are avoided in the X-ray image exposure and the detective quantum efficiency (DQE) is increased.

    Abstract translation: 一种X射线检测器和方法,用于将杂散辐射栅格施加到具有布置在矩阵中的检测器元件的X射线检测器,X射线检测器形成具有对X射线敏感的检测区域和较不敏感的中间区域的检测器表面, 杂散辐射网格通过快速原型技术直接在X射线检测器上建立在检测器表面上,随后用X射线吸收性高的材料涂覆或填充。 因此出现位于检测器表面的不太敏感的中间区域上的吸收结构。 在X射线图像曝光中避免了莫尔干扰,并且检测量子效率(DQE)增加。

    Solid-state radiation detector and medical examination and/or treatment device
    19.
    发明授权
    Solid-state radiation detector and medical examination and/or treatment device 失效
    固体放射线检测器和体检和/或治疗装置

    公开(公告)号:US06828562B2

    公开(公告)日:2004-12-07

    申请号:US10176292

    申请日:2002-06-20

    Inventor: Martin Hoheisel

    CPC classification number: G01T1/2928 G01T1/24

    Abstract: In a solid-state radiation detector and a medical examination and/or treatment device having such a solid-state radiation detector, the detector has a pixel matrix, with each pixel supplying an output signal dependent on the incident radiation. The pixel matrix has a conversion layer that converts the incident radiation into charge, a storage capacitor for storing the charge and a transistor for reading out the charge. The capacitance of the storage capacitor is set to be so small that because of the voltage drop across the storage capacitor, the output signal of the pixel exhibits, starting from a specific value of the incident radiation dose, a sublinear response with reference to the radiation dose.

    Abstract translation: 在具有这种固态放射线检测器的固态放射线检测器和医疗检查和/或治疗装置中,检测器具有像素矩阵,每个像素提供取决于入射辐射的输出信号。 像素矩阵具有将入射辐射转换为电荷的转换层,用于存储电荷的存储电容器和用于读出电荷的晶体管。 存储电容器的电容被设置为如此小,由于存储电容器两端的电压降,像素的输出信号从入射辐射剂量的特定值开始呈现参考辐射的亚线响应 剂量。

    X-ray image intensifier having an image sensor with amorphous
semiconductor material layer
    20.
    发明授权
    X-ray image intensifier having an image sensor with amorphous semiconductor material layer 失效
    具有具有非晶半导体材料层的图像传感器的X射线图像增强器

    公开(公告)号:US5365056A

    公开(公告)日:1994-11-15

    申请号:US84139

    申请日:1993-07-01

    Abstract: The invention is directed to an x-ray image intensifier having an evacuated housing, an input luminescent screen, electron optics, and an image sensor applied inside the housing at that side thereof lying opposite the input luminescent screen. The side of the image sensor facing toward the input luminescent screen is provided with a layer system that includes at least one semiconductor layer that effects an electron conversion of the incident electrons by ionization with charge carrier multiplication and is composed of amorphous semiconductor material.

    Abstract translation: 本发明涉及一种具有抽真空壳体,输入荧光屏,电子光学器件和施加在壳体内部的位于与输入发光屏相对的那侧的图像传感器的X射线图像增强器。 图像传感器面向输入荧光屏的一侧设置有层系统,该层系统包括至少一个半导体层,该半导体层通过电荷载流子倍增进行电离而实现入射电子的电子转换,并由非晶半导体材料构成。

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