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    Radiation converter having an electron multiplier
    13.
    发明授权
    Radiation converter having an electron multiplier 失效
    具有电子倍增器的辐射转换器

    公开(公告)号：US06566809B1

    公开(公告)日：2003-05-20

    申请号：US09655649

    申请日：2000-09-05

    申请人： Manfred Fuchs ,  Erich Hell ,  Wolfgang Knuepfer ,  Detlef Mattern

    发明人： Manfred Fuchs ,  Erich Hell ,  Wolfgang Knuepfer ,  Detlef Mattern

    IPC分类号： H01J3150

    CPC分类号： H01J31/48 ,  H01J31/49

    摘要： A radiation converter includes a radiation absorber for generating light photons dependent on the intensity of incident radiation following the radiation absorber by a photocathode, an electrode system for accelerating the electrons emanating from the photocathode onto an electron detector for generating electrical signals dependent on the incident electrons, and an electron multiplier arranged between the photocathode and the electron detector. The electrons emanating from the photocathode are multiplied by the electron multiplier.

    摘要翻译： 辐射转换器包括：放射线吸收体，其依赖于通过光电阴极在辐射吸收体之后的入射辐射强度产生光子;用于将从光电阴极发射的电子加速到电子检测器上以产生取决于入射电子的电信号 以及布置在光电阴极和电子检测器之间的电子倍增器。 从光电阴极发出的电子乘以电子倍增器。

    X-ray diagnostic installation with electronic zoom for a detector with a storage luminescent screen
    14.
    发明授权
    X-ray diagnostic installation with electronic zoom for a detector with a storage luminescent screen 失效
    具有电子变焦的X射线诊断装置，用于具有存储荧光屏的检测器

    公开(公告)号：US06477230B1

    公开(公告)日：2002-11-05

    申请号：US09675843

    申请日：2000-09-29

    申请人： Manfred Fuchs ,  Erich Hell ,  Detlef Mattern

    发明人： Manfred Fuchs ,  Erich Hell ,  Detlef Mattern

    IPC分类号： H05G164

    CPC分类号： A61B6/4233 ,  G01T1/2014 ,  G03B42/02

    摘要： An X-ray diagnostic installation has a storage luminescent screen for the latent storage of an X-ray image, an X-ray exposure unit for generating an X-ray beam, a readout system for causing the storage luminescent screen to luminesce by being scanned with a radiation source, a detector for acquiring the light emitted by the storage luminescent screen, and an image playback system. In a first operating mode, the X-ray exposure unit produces X-ray images with a first dose and the readout system implements a fast readout of the image area of the storage luminescent screen with low resolution. In a second operating mode, the X-ray exposure unit produces X-ray images in a limited region with a higher dose compared to the first dose, and this region of the image area of the storage luminescent screen is read out with high resolution.

    摘要翻译： X射线诊断装置具有用于X射线图像的潜藏的存储发光屏，用于产生X射线束的X射线曝光单元，通过扫描使存储发光屏发光的读出系统 具有辐射源，用于获取由存储发光屏发射的光的检测器和图像回放系统。 在第一操作模式中，X射线曝光单元产生具有第一剂量的X射线图像，并且读出系统以低分辨率实现存储发光屏的图像区域的快速读出。 在第二操作模式中，与第一剂量相比，X射线曝光单元在具有较高剂量的有限区域中产生X射线图像，并且以高分辨率读出存储发光屏的图像区域的该区域。

    X-ray tube with flying focus
    15.
    发明授权
    X-ray tube with flying focus 有权
    具有飞行焦点的X射线管

    公开(公告)号：US06292538B1

    公开(公告)日：2001-09-18

    申请号：US09487281

    申请日：2000-01-19

    申请人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    发明人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    IPC分类号： H01J3530

    CPC分类号： A61B6/4021 ,  H01J35/14 ,  H01J35/305

    摘要： X-ray tube with flying focus has a magnet system for deflecting and focusing the electron beam, whereby the magnet system including a carrier that is constructed as an iron yoke and that has four pole projections that are arranged around the axis of the electron beam offset from one another by 90°, on which two pairs of coils (z-coils and &phgr;-coils) are arranged so as to be offset from one another 90°. The individual coils of each pair supplied with a common high-frequency alternating current that deflects the electron beam in the &phgr;-and z-directions, respectively, in a pulsed manner.

    摘要翻译： 具有飞行焦点的X射线管具有用于偏转和聚焦电子束的磁体系统，由此磁体系统包括构造为铁轭的载体，并且具有围绕电子束偏移的轴线布置的四个极突起 彼此相差90°，其中两对线圈（z线圈和phi线圈）被布置成彼此偏移90°。 每对的各个线圈分别提供一个共同的高频交流电流，分别以脉冲方式偏转电子束在phi和z方向。

    Low-cost x-ray radiator
    16.
    发明授权
    Low-cost x-ray radiator 失效
    低成本x射线辐射器

    公开(公告)号：US06213639B1

    公开(公告)日：2001-04-10

    申请号：US09391081

    申请日：1999-09-16

    申请人： Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    发明人： Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    IPC分类号： H01J3510

    CPC分类号： H01J35/305 ,  H01J35/106 ,  H01J2235/1216 ,  H01J2235/1262 ,  H05G1/025 ,  H05G1/04

    摘要： An x-ray radiator has a rotary-bulb tube, whose vacuum enclosure rotates inside a radiator housing, which is filled with a liquid cooling medium, and a cooling medium conducting body is arranged between the vacuum enclosure and the radiator housing, at a distance from both of these. The cooling medium conducting body produces a flow of the cooling medium along the vacuum enclosure in the inner gap and a return flow of the cooling medium along the radiator housing in the outer gap, promoted by the rotation of the rotary-bulb tube.

    摘要翻译： X射线辐射器具有旋转灯泡管，其真空外壳在散热器壳体内旋转，其中填充有液体冷却介质，并且冷却介质导电体设置在真空外壳和散热器壳体之间，距离 从这两个。 冷却介质导电体沿着内部间隙中的真空外壳产生冷却介质的流动，并且通过旋转灯管的旋转促进冷却介质沿着外部间隙中的散热器壳体的返回流。

    Cooling device and computed tomography apparatus employing same
    17.
    发明授权
    Cooling device and computed tomography apparatus employing same 失效
    冷却装置和采用该装置的计算机断层摄影装置

    公开(公告)号：US06709156B1

    公开(公告)日：2004-03-23

    申请号：US09664338

    申请日：2000-09-18

    申请人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    发明人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    IPC分类号： H01J3510

    CPC分类号： A61B6/035 ,  A61B6/4488 ,  H05G1/02 ,  H05H1/02

    摘要： A cooling device for an X-ray source arranged at a gantry rotatable around a rotational axis has a ring-like heat exchanger that is arranged at the gantry and is thermally conductively connected to the X-ray source. The cooling device is useable in a computed tomography apparatus having the X-ray source.

    摘要翻译： 布置在可绕旋转轴线旋转的机架的X射线源的冷却装置具有布置在台架处并与X射线源导热连接的环状热交换器。 冷却装置可用于具有X射线源的计算机断层摄影装置中。

    X-ray source which emits fluorescent X-rays
    18.
    发明授权
    X-ray source which emits fluorescent X-rays 失效
    发射荧光X射线的X射线源

    公开(公告)号：US06141400A

    公开(公告)日：2000-10-31

    申请号：US246452

    申请日：1999-02-09

    申请人： Peter Schardt ,  Erich Hell ,  Detlef Mattern

    发明人： Peter Schardt ,  Erich Hell ,  Detlef Mattern

    IPC分类号： H01J35/06 ,  H01J35/00 ,  H01J35/08 ,  H01J35/12 ,  H05G2/00

    CPC分类号： H05G2/00 ,  H01J35/00 ,  H01J35/08 ,  H01J2235/086

    摘要： A fluorescent X-ray emitting source has an unfocused, omni-directionally radiating electron source and an anode target for the generation of X-ray bremsstrahlung, which releases mono-energetic X-rays in a fluorescent target. The electron source and the fluorescent target are arranged in a vacuum housing with an X-ray exit window. The housing has an interior wall surface forming the anode target and the fluorescent target is aligned with the X-ray exit window.

    摘要翻译： 荧光X射线发射源具有未聚焦的全向辐射电子源和用于产生X射线bre致辐射的阳极靶，其在荧光靶中释放单能X射线。 电子源和荧光目标设置在具有X射线出射窗的真空壳体中。 壳体具有形成阳极靶的内壁表面，并且荧光目标与X射线出射窗口对准。

    Direct-Heated flats emitter for emitting an electron beam
    19.
    发明授权
    Direct-Heated flats emitter for emitting an electron beam 有权
    用于发射电子束的直接加热平板发射极

    公开(公告)号：US6115453A

    公开(公告)日：2000-09-05

    申请号：US137481

    申请日：1998-08-20

    申请人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    发明人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

    IPC分类号： H01J1/16 ,  H01J35/06

    CPC分类号： H01J1/16 ,  H01J35/06 ,  Y10S430/143

    摘要： A direct-heated flat emitter for generating a homogenous electron beam, particularly for x-ray tubes, has two terminal lugs for the heating current supply formed at the edge of the perimeter of the emission surface and the emission surface is subdivided into interconnects by slits. The slits have a width no less than 10 .mu.m and no greater than 1% of the length of a diagonal of the smallest rectangle which can circumscribe the emission surface.

    摘要翻译： 用于产生均匀电子束的直接加热扁平发射体，特别是用于x射线管，具有两个用于在发射表面的周边边缘处形成的加热电流源的端子凸耳，并且发射表面通过狭缝细分为互连 。 狭缝具有不小于10μm的宽度，并且不大于可以包围发射表面的最小矩形的对角线的长度的1％的宽度。

    Computed tomography system with arrangement for cooling the x-ray radiator mounted on a rotating gantry
    20.
    发明授权
    Computed tomography system with arrangement for cooling the x-ray radiator mounted on a rotating gantry 有权
    计算机断层摄影系统，具有用于冷却安装在旋转机架上的x射线辐射器的布置

    公开(公告)号：US06412979B1

    公开(公告)日：2002-07-02

    申请号：US09412127

    申请日：1999-10-05

    申请人： Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    发明人： Erich Hell ,  Detlef Mattern ,  Thomas Ohrndorf ,  Peter Schardt

    IPC分类号： H01J3510

    CPC分类号： A61B6/035 ,  A61B6/4488

    摘要： A computed tomography system has a gantry rotating around a patient acceptance space in a stationary gantry housing, the gantry carrying an x-ray radiator connected to a cooling device. The x-ray tube is a directly cooled rotating bulb tube whose coolant serves as an intermediate heat store and which is cooled in standstill periods of the gantry by a likewise co-rotating heat exchanger via a coolant pump.

    摘要翻译： 计算机断层摄影系统具有在固定台架壳体内围绕患者接受空间旋转的台架，所述台架携带连接到冷却装置的x射线辐射器。 X射线管是直接冷却的旋转灯泡管，其冷却剂用作中间热存储器，并且通过同样的同向旋转热交换器经由冷却剂泵在机架的停止时段中冷却。