Method for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector
    21.
    发明授权
    Method for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector 有权
    用于生产和应用反散射栅格或准直器到X射线或γ检测器的方法

    公开(公告)号:US07149283B2

    公开(公告)日:2006-12-12

    申请号:US10655025

    申请日:2003-09-05

    CPC classification number: G21K1/10 B33Y10/00 B33Y30/00 B33Y80/00 G21K1/025

    Abstract: A method is for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector having matricially arranged detector elements which form a detector surface with detection regions sensitive to x-radiation and/or gamma radiation and less sensitive intermediate regions. In the method, a basic structure is firstly produced for the antiscatter grid or collimator by way of a rapid prototyping technique, through which transmission channels and intermediate walls of the antiscatter grid or collimator are formed which have at least in a first direction a center-to-center spacing which is equal to or an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector. The intermediate walls are coated with a material which strongly absorbs x-radiation and/or gamma radiation in order to finish the antiscatter grid or collimator. Subsequently, the antiscatter grid or collimator is applied to the detector surface and connected to the detector surface in such a way that at least the intermediate walls running perpendicular to the first direction, or their coating, are situated over the less sensitive intermediate regions of the detector surface. A detector having an antiscatter grid or collimator in which no moiré interference occurs can thus be realized in a simple way.

    Abstract translation: 一种方法是用于产生和应用反散射栅格或准直器到具有基本布置的检测器元件的x射线或伽马检测器,该检测器元件形成具有对x辐射和/或γ辐射敏感的检测区域和较不敏感的中间区域的检测器表面。 在该方法中,首先通过快速成型技术为反散射栅格或准直器生成基本结构,通过该基本结构形成反散射栅格或准直器的透射通道和中间壁,其至少在第一方向上具有中心 - 中心间距等于检测器的敏感检测区域的中心到中心间隔的整数倍。 中间壁涂覆有强烈吸收x辐射和/或γ辐射的材料,以完成反散射栅格或准直仪。 随后,将反散射栅格或准直器施加到检测器表面并连接到检测器表面,使得至少垂直于第一方向延伸的中间壁或其涂层位于不太敏感的中间区域 探测器表面。 因此,能够以简单的方式实现具有不发生莫尔干扰的反散射栅格或准直仪的检测器。

    System for the registration of radiation images
    23.
    发明授权
    System for the registration of radiation images 失效
    辐射图像登记系统

    公开(公告)号:US06794672B2

    公开(公告)日:2004-09-21

    申请号:US10154102

    申请日:2002-05-23

    Inventor: Hartmut Sklebitz

    CPC classification number: G03B42/02

    Abstract: A system for the registration of radiation images has a radiation pick-up device and a control device controlling the operation thereof. The radiation pick-up device has a charge layer that generates electrical charges dependent on the incident radiation and an allocated electrode layer that is chargeable with high-voltage for triggering an electron-multiplying avalanche effect in the charge layer by virtue of a potential produced across the charge layer by the high-voltage. A read-out device reads out the generated charges in the charge layer by means of an electron beam. The potential via the charge layer can be modulated for varying the gain of the charge layer caused by the avalanche effect.

    Abstract translation: 用于放射图像的配准的系统具有辐射拾取装置和控制其操作的控制装置。 辐射拾取装置具有产生取决于入射辐射的电荷的电荷层,以及可以利用高电压充电的分配的电极层,借助于电荷层产生的电位来触发电荷层中的电子倍增雪崩效应 电荷层由高电压。 读出装置通过电子束读出电荷层中产生的电荷。 可以调制通过电荷层的电位,以改变由雪崩效应引起的电荷层的增益。

    Medical examination installation with an MR system and an X-ray system
    24.
    发明授权
    Medical examination installation with an MR system and an X-ray system 失效
    医疗检查安装与MR系统和X射线系统

    公开(公告)号:US06658085B2

    公开(公告)日:2003-12-02

    申请号:US09923836

    申请日:2001-08-06

    Inventor: Hartmut Sklebitz

    Abstract: A medical examination installation has an MR system and an X-ray system that has an X-ray radiator with an X-ray tube and a solid-state X-ray image detector for producing X-ray exposures. The X-ray system has sensors for the acquisition of the location dependency of the stray field of the MR system in the three spatial axes, and coils for compensation of the stray field, and a computer that uses the output signal of the sensors to calculate a current for the coils which cause the stray field to be reduced in the region of the electron beams of the X-ray tube.

    Abstract translation: 医疗检查装置具有具有X射线管的X射线辐射器和用于产生X射线曝光的固态X射线图像检测器的MR系统和X射线系统。 X射线系统具有用于获取MR系统在三个空间轴上的杂散场的位置依赖性的传感器和用于补偿杂散场的线圈,以及使用传感器的输出信号计算的计算机 用于使X射线管的电子束区域中的杂散场减少的线圈的电流。

    Radiation sensitive transducer wherein deformation due to temperature
fluctuations is avoided
    25.
    发明授权
    Radiation sensitive transducer wherein deformation due to temperature fluctuations is avoided 失效
    辐射敏感传感器避免了由于温度波动引起的变形

    公开(公告)号:US6037642A

    公开(公告)日:2000-03-14

    申请号:US94072

    申请日:1998-06-09

    CPC classification number: G01D3/028 H01L27/146

    Abstract: A radiation-sensitive transducer with a doped semiconductor sensor is to be constructed on a mounting plate such that it does not deform during temperature fluctuations. On the back side of the mounting plate, i.e., the side opposite the side on which the semiconductor sensor is mounted, an additional element having the same dimensions as the semiconductor sensor is attached opposite the semiconductor sensor. The additional element is composed of the same semiconductor material as of the semiconductor sensor, but is undoped. Due to the corresponding size and material of the semiconductor sensor and the additional element, they respectively produce equal but opposite forces acting on the mounting plate during temperature fluctuations, so no deformation occurs.

    Abstract translation: 具有掺杂半导体传感器的辐射敏感传感器将被构造在安装板上,使得其在温度波动期间不变形。 在安装板的背面,即与安装半导体传感器的一侧相反的一侧,具有与半导体传感器相同尺寸的附加元件与半导体传感器相对地安装。 附加元件由与半导体传感器相同的半导体材料组成,但是是未掺杂的。 由于半导体传感器和附加元件的相应尺寸和材料,它们在温度波动期间分别产生作用在安装板上的相等但相反的力,因此不会发生变形。

    Image intensifier with protected image sensor
    26.
    发明授权
    Image intensifier with protected image sensor 失效
    具有保护图像传感器的图像增强器

    公开(公告)号:US5349178A

    公开(公告)日:1994-09-20

    申请号:US81826

    申请日:1993-06-22

    CPC classification number: H01J31/501 H01J2231/50036 H01J2231/50073

    Abstract: An x-ray image intensifier has an evacuated housing, an input luminescent screen, electron optics, and an image sensor disposed inside the housing at a side of the housing opposite the input luminescent screen. The image sensor is covered by a protective layer which effects a deceleration of the incident electrons, the protective layer being applied on that side of the image sensor facing the input luminescent screen.

    Abstract translation: x射线图像增强器具有抽真空的外壳,输入荧光屏,电子光学器件和设置在壳体内部的壳体内的与输入发光屏相对的一侧的图像传感器。 图像传感器被保护层覆盖,该保护层影响入射电子的减速,保护层被施加在面向输入发光屏的图像传感器的那侧。

    Stereo X-ray installation
    27.
    发明授权
    Stereo X-ray installation 失效
    立体声X射线安装

    公开(公告)号:US4769701A

    公开(公告)日:1988-09-06

    申请号:US063963

    申请日:1987-06-19

    Abstract: An x-ray apparatus for generating an image of an examination subject, including an image pattern of an instrument, for the purpose of guiding the instrument, includes dual x-ray sources and a stereo viewer for generating a stereo image of the examination subject from a video signal produced by attenuation of the x-rays by the patient and the instrument, a detector which identifies the presence of the instrument in the video signal and generates an output signal upon detection thereof, a phase-locked loop circuit for generating an image pattern of the instrument from the output of the detector, a mixer which combines the image pattern with the video signal, and a switching stage connected between the output of the phase-locked loop circuit and the mixer, the switching stage having a control input supplied with the output signal from the detector such that the image pattern of the instrument is supplied to the mixer in the absence of an output signal from the detector.

    Abstract translation: 一种用于产生检查对象的图像的X射线设备,包括用于引导仪器的仪器的图像图案,包括双X射线源和立体观看器,用于产生检查对象的立体图像, 由患者和仪器衰减x射线产生的视频信号,识别视频信号中存在的仪器并在检测到视频信号时产生输出信号的检测器,用于产生图像的锁相环电路 来自检测器的输出的仪器的图案,将图像图案与视频信号组合的混合器以及连接在锁相环电路的输出和混频器之间的开关级,开关级具有提供的控制输入 来自检测器的输出信号使得在没有来自检测器的输出信号的情况下,将仪器的图像图案提供给混合器。

    Diagnostic installation for producing tomographic images
    28.
    发明授权
    Diagnostic installation for producing tomographic images 失效
    用于生成断层图像的诊断安装

    公开(公告)号:US4232226A

    公开(公告)日:1980-11-04

    申请号:US60417

    申请日:1979-07-25

    CPC classification number: A61B6/035 A61B6/02 A61B6/06 G21K1/02 H05G1/02

    Abstract: The installation comprises a support table for a patient, a plurality of x-ray sources or similar radiation sources, arranged in a series or planar array, with step-by-step activation of the radiation sources in any desired sequence. The beam of rays and the image field of the image detection installation are shifted in mutually opposite directions, so that sharply defined images are formed of only those details disposed in a specified longitudinal layer of the body as determined by the location of the rotational axis of the beam of rays. In the radiation path of the beam of rays of every radiation source, a beam path control device is arranged for shifting the beam path in relation to a central axis of the radiation source system and of the image pickup system, in dependence upon a laminographic height alteration. For example with plural circular arrays of x-ray sources about the central axis, the beam paths can be jointly adjusted by means of a single motor to intersect at any desired level within the patient receiving region of the support table.

    Abstract translation: 该装置包括用于患者的支撑台,多个x射线源或类似的辐射源,以串联或平面阵列布置,以任何期望的顺序逐步激活辐射源。 光束和图像检测装置的图像场在相互相反的方向上移动,使得清晰定义的图像仅由设置在身体的指定纵向层中的那些细节形成,该位置由旋转轴的旋转轴线的位置确定 光束。 在每个辐射源的射线束的辐射路径中,布置了光束路径控制装置,用于相对于辐射源系统和图像拾取系统的中心轴移动光束路径,其依赖于层叠高度 改造。 例如,围绕中心轴线具有多个x射线源的圆形阵列,可以通过单个电动机共同调整光束路径,以在支撑台的患者接收区域内的任何期望水平相交。

    X-ray diagnostics installation comprising an electronic transmission
channel for the X-ray image
    29.
    发明授权
    X-ray diagnostics installation comprising an electronic transmission channel for the X-ray image 失效
    X射线诊断装置包括用于X射线图像的电子传输通道

    公开(公告)号:US4215365A

    公开(公告)日:1980-07-29

    申请号:US13683

    申请日:1979-02-21

    CPC classification number: H04N5/32

    Abstract: In the illustrated embodiment an electronic transmission channel for converting an X-ray image into a television signal has an illumination device arranged in the optical path leading to the television pickup tube for providing a weak diffuse illumination of the target of the television pickup tube. It is found that such illumination enables the use of a television pickup tube having an cadmium-selenide layer, for example, without the buildup of negative potentials during scanning of the target in the absence of an X-ray image. The illumination device may be formed by one or more luminescent diodes.

    Abstract translation: 在所示实施例中,用于将X射线图像转换为电视信号的电子传输通道具有布置在通向电视拾取管的光路中的照明装置,用于提供电视拾取管的目标的弱散射照明。 已经发现,这样的照明使得能够使用具有硒化镉层的电视拾取管,例如,在没有X射线图像的情况下,在目标扫描期间没有积累负电位。 照明装置可以由一个或多个发光二极管形成。

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