Cooling device and computed tomography apparatus employing same
    1.
    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

    IPC分类号: H01J3510

    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
    2.
    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

    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
    3.
    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

    IPC分类号: H01J1/16 H01J35/06

    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。

    X-ray radiator with rotating bulb tube with exteriorly profiled anode to improve cooling
    4.
    发明授权
    X-ray radiator with rotating bulb tube with exteriorly profiled anode to improve cooling 有权
    X射线辐射器带旋转灯泡管,外部异型阳极,以改善冷却

    公开(公告)号:US06426998B1

    公开(公告)日:2002-07-30

    申请号:US09350445

    申请日:1999-07-09

    IPC分类号: H61J3510

    摘要: An x-ray radiator has a housing containing a fluid coolant wherein a rotating bulb x-ray tube is rotatably seated, the rotating bulb x-ray tube having an evacuated vacuum housing containing a cathode and an anode, with the anode forming a wall of the vacuum housing and having an exterior charged by the coolant. The anode has a profiling at its exterior that enlarges the surface area contact between the exterior of the anode and the coolant. The profiling can be in the form of at least one channel proceeding from as a spiral from a central region of the anode toward its periphery.

    摘要翻译: x射线辐射器具有容纳流体冷却剂的壳体,其中旋转灯泡x射线管可旋转地安置,旋转灯泡x射线管具有包含阴极和阳极的抽真空真空壳体,阳极形成壁 真空壳体并具有由冷却剂充电的外部。 阳极在其外部具有轮廓,其扩大阳极外部和冷却剂之间的表面积接触。 轮廓可以是从阳极的中心区域朝向其周边的螺旋形的至少一个通道的形式。

    X-ray tube with flying focus
    5.
    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

    IPC分类号: H01J3530

    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
    6.
    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

    IPC分类号: H01J3510

    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。

    Computed tomography system with arrangement for cooling the x-ray radiator mounted on a rotating gantry
    8.
    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

    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。

    X-ray tube
    9.
    发明授权
    X-ray tube 有权
    X光管

    公开(公告)号:US06339635B1

    公开(公告)日:2002-01-15

    申请号:US09266092

    申请日:1999-03-10

    IPC分类号: H01J3530

    CPC分类号: H01J35/305

    摘要: An x-ray tube has a vacuum housing containing a cathode arrangement that emits electrons and an anode having a target surface on which the electrons, accelerated by an electrical field and forming an electron beam strike in a focal spot, and having a quadrupole magnet system including a coil, for focusing and deflection of the electron beam. A control unit is connected to the quadrupole magnet system. The control unit is supplied with, or has stored therein various parameter sets of predetermined coil currents that can be activated, so that, dependent on the respective parameter set, the focal spot can be displaced discretely in azimuthal fashion onto particular locations of the target surface of the anode.

    摘要翻译: X射线管具有包含发射电子的阴极装置和具有目标表面的阳极的真空壳体,电子被电场加速并形成电子束在焦点中撞击并具有四极磁体系统 包括线圈,用于电子束的聚焦和偏转。 控制单元连接到四极磁体系统。 控制单元被提供或存储有可以被激活的预定线圈电流的各种参数组,使得根据相应的参数组,焦斑可以以方位角方式离散地移位到目标表面的特定位置上 的阳极。

    X-ray radiator
    10.
    发明授权
    X-ray radiator 有权
    X光散热器

    公开(公告)号:US06272205B1

    公开(公告)日:2001-08-07

    申请号:US09306251

    申请日:1999-05-06

    IPC分类号: H01J3530

    CPC分类号: H01J35/305 H05G1/52

    摘要: An X-ray radiator with a rotating bulb X-ray tube, with an allocated deflecting magnet system having at least one current-supplied coil for generating a magnetic deflecting field, has a circuit for tapping at least one reference signal representative of the high voltage existing at the X-ray tube. The coil current is adjusted by a control unit depending on this reference signal.

    摘要翻译: 具有旋转灯泡X射线管的X射线辐射器具有用于产生磁偏转场的具有至少一个供电线圈的分配的偏转磁体系统,具有用于抽出表示高电压的至少一个参考信号的电路 存在于X射线管。 线圈电流由控制单元根据该参考信号进行调整。