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12 条记录 (耗时 0.023 秒)

    Thermal filter for an x-ray tube window
    1.
    发明授权
    Thermal filter for an x-ray tube window 失效
    X射线管窗口的热过滤器

    公开(公告)号：US06301332B1

    公开(公告)日：2001-10-09

    申请号：US09723932

    申请日：2000-11-28

    申请人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    发明人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    IPC分类号： H01J3516

    CPC分类号： H01J35/105 ,  H01J35/18 ,  H05G1/025 ,  H05G1/04

    摘要： A thermal energy storage and transfer assembly is disclosed for use in electron beam generating devices that generate residual energy. The residual energy comprises radiant thermal energy and kinetic energy of back scattered electrons. The thermal energy storage and transfer assembly absorbs and stores an amount of the residual energy to reduce the heat load on other components in the electron beam generating device. The thermal energy storage and transfer device comprises a body portion of a sufficient thermal capacity to permit the rate of transfer of the amount of the residual energy absorbed into the assembly to substantially exceed the rate of transfer of the amount of the residual energy out of the assembly. The assembly also comprises a heat exchange chamber filled with a circulating fluid that transfers the thermal energy out of the assembly. Additionally, in an x-ray generating device, an x-ray transmissive filter suitable for absorbing residual energy is positioned between the anode and an x-ray transmissive window. The filter reduces the exposure of the window to the residual energy. The filter may additionally comprise a coating layer that further reduces the exposure of the window to the residual energy.

    摘要翻译： 公开了用于产生残余能量的电子束产生装置中的热能存储和转移组件。 剩余能量包括辐射热能和背散射电子的动能。 热能储存和转移组件吸收和储存一定量的剩余能量以减少电子束发生装置中其它部件上的热负荷。 热能储存和转移装置包括具有足够热容量的主体部分，以允许吸收到组件中的剩余能量的量的转移速率基本上超过剩余能量的转移速率 部件。 组件还包括填充有循环流体的热交换室，该循环流体将热能转移出组件。 另外，在x射线产生装置中，适于吸收残余能量的x射线透射滤光器位于阳极和x射线透射窗之间。 过滤器可以减少窗口对剩余能量的暴露。 过滤器可以另外包括涂层，其进一步减少窗口暴露于剩余能量。

    Thermal energy storage and transfer assembly
    2.
    发明授权
    Thermal energy storage and transfer assembly 有权
    热能储存和转移组件

    公开(公告)号：US06215852B1

    公开(公告)日：2001-04-10

    申请号：US09208961

    申请日：1998-12-10

    申请人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    发明人： Carey S. Rogers ,  Charles B. Kendall ,  Douglas J. Snyder ,  Brian D. Lounsberry

    IPC分类号： H01J3516

    CPC分类号： H01J35/105 ,  H01J35/18 ,  H05G1/025 ,  H05G1/04

    摘要： A thermal energy storage and transfer assembly is disclosed for use in electron beam generating devices that generate residual energy. The residual energy comprises radiant thermal energy and kinetic energy of back scattered electrons. The thermal energy storage and transfer assembly absorbs and stores an amount of the residual energy to reduce the heat load on other components in the electron beam generating device. The thermal energy storage and transfer device comprises a body portion of a sufficient thermal capacity to permit the rate of transfer of the amount of the residual energy absorbed into the assembly to substantially exceed the rate of transfer of the amount of the residual energy out of the assembly. The assembly also comprises a heat exchange chamber filled with a circulating fluid that transfers the thermal energy out of the assembly. Additionally, in an x-ray generating device, an x-ray transmissive filter suitable for absorbing residual energy is positioned between the anode and an x-ray transmissive window. The filter reduces the exposure of the window to the residual energy. The filter may additionally comprise a coating layer that further reduces the exposure of the window to the residual energy.

    摘要翻译： 公开了用于产生残余能量的电子束产生装置中的热能存储和转移组件。 剩余能量包括辐射热能和背散射电子的动能。 热能储存和转移组件吸收和储存一定量的剩余能量以减少电子束发生装置中其它部件上的热负荷。 热能储存和转移装置包括具有足够热容量的主体部分，以允许吸收到组件中的剩余能量的量的转移速率基本上超过剩余能量的转移速率 部件。 组件还包括填充有循环流体的热交换室，该循环流体将热能转移出组件。 另外，在x射线产生装置中，适于吸收残余能量的x射线透射滤光器位于阳极和x射线透射窗之间。 过滤器可以减少窗口对剩余能量的暴露。 过滤器可以另外包括涂层，其进一步减少窗口暴露于剩余能量。

    Heat pipe assisted cooling of rotating anode x-ray tubes
    3.
    发明授权
    Heat pipe assisted cooling of rotating anode x-ray tubes 失效
    热管辅助冷却旋转阳极x射线管

    公开(公告)号：US06307916B1

    公开(公告)日：2001-10-23

    申请号：US09395476

    申请日：1999-09-14

    申请人： Carey S. Rogers ,  Douglas J. Snyder ,  Michael J. Price

    发明人： Carey S. Rogers ,  Douglas J. Snyder ,  Michael J. Price

    IPC分类号： H01J3510

    CPC分类号： F28D15/02 ,  H01J35/106 ,  H01J2235/1204 ,  H01J2235/1287

    摘要： An x-ray tube for emitting x-rays which includes an anode assembly and a cathode assembly is disclosed herein. The x-ray tube includes a vacuum vessel, an anode assembly disposed in the vacuum vessel and including a target, a cathode assembly disposed in the vacuum vessel at a distance from the anode assembly, and a heat pipe is supported relative to the anode assembly. The cathode assembly is configured to emit electrons which hit the target of the anode assembly and produce x-rays. The heat pipe transfers thermal energy away from the target through the vacuum vessel. The heat pipe provides for greater thermal transfer down the bearing shaft of the anode assembly, thereby providing greater cooling of the anode assembly.

    摘要翻译： 本文公开了一种用于发射包括阳极组件和阴极组件的x射线的X射线管。 X射线管包括真空容器，设置在真空容器中并包括靶的阳极组件，设置在距离阳极组件一定距离的真空容器中的阴极组件，并且热管相对于阳极组件被支撑 。 阴极组件被配置为发射撞击阳极组件的靶并产生x射线的电子。 热管通过真空容器将热能从靶移出。 该热管提供了沿着阳极组件的轴承轴的更大的热传递，由此提供了阳极组件的更大的冷却。

    Aluminum x-ray transmissive window for an x-ray tube vacuum vessel
    4.
    发明授权
    Aluminum x-ray transmissive window for an x-ray tube vacuum vessel 失效
    用于X射线管真空容器的铝x射线透射窗

    公开(公告)号：US6118852A

    公开(公告)日：2000-09-12

    申请号：US109753

    申请日：1998-07-02

    申请人： Carey S. Rogers ,  Charles B. Kendall

    发明人： Carey S. Rogers ,  Charles B. Kendall

    IPC分类号： G21K5/00 ,  H01J5/22 ,  H01J35/18 ,  H01J5/18

    CPC分类号： H01J5/22 ,  H01J35/18 ,  H01J2235/183

    摘要： An x-ray transmissive window assembly for use in metal framed x-ray tubes is formed of at least two layers of metal joined by explosion welding. An x-ray transmissive window, preferably comprising aluminum or an aluminum alloy, is joined to a transition layer, which is typically the same material as the x-ray tube vacuum vessel, to form the transmissive window assembly. The transmissive window is formed in the assembly by removing the transition layer material from the central region. A weld flange is prepared by removing the x-ray transmissive window material from the periphery of the assembly. The assembly is then welded into the x-ray tube vacuum vessel using traditional techniques. In another embodiment, a multi-layered window assembly comprises an x-ray transmissive window, a transition layer weldable to an x-ray tube vacuum vessel, and an intermediate layer that acts as a mask or aperture to attenuate peripheral radiation and clearly define the edges of the transmitted x-ray beam. The intermediate layer also acts as a diffusion barrier that prevents the formation of a brittle intermetallic layer between the transmissive window and transition layers during high temperature operation. Additionally, according to the present invention, an x-ray system comprising the above-described window assembly is disclosed.

    摘要翻译： 用于金属框架X射线管的x射线透射窗组件由至少两层通过爆炸焊接接合的金属形成。 优选地包括铝或铝合金的x射线透射窗被连接到通常与x射线管真空容器相同的材料的过渡层，以形成透射窗组件。 通过从中心区域去除过渡层材料，在组件中形成透射窗。 通过从组件的周边去除x射线透射窗材料来制备焊接凸缘。 然后使用传统技术将组件焊接到x射线管真空容器中。 在另一个实施例中，多层窗口组件包括x射线透射窗，可焊接到x射线管真空容器的过渡层，以及充当掩模或孔以衰减外围辐射的中间层，并且清楚地界定 透射X射线束的边缘。 中间层还充当扩散阻挡层，其防止在高温操作期间在透射窗和过渡层之间形成脆性金属间化合物层。 另外，根据本发明，公开了一种包括上述窗组件的X射线系统。

    X-ray tube apparatus employing liquid metal for heat removal
    6.
    发明授权
    X-ray tube apparatus employing liquid metal for heat removal 有权
    采用液态金属除热的X射线管装置

    公开(公告)号：US6160868A

    公开(公告)日：2000-12-12

    申请号：US265160

    申请日：1999-03-09

    申请人： Douglas J. Snyder ,  Carey S. Rogers

    发明人： Douglas J. Snyder ,  Carey S. Rogers

    IPC分类号： H01J35/10

    CPC分类号： H01J35/105 ,  H01J2235/1208 ,  H01J2235/1291

    摘要： Heat removal apparatus is provided for an X-ray tube having a frame, a shaft mounted for rotation with respect to the frame, and an anode supported on the shaft for rotation therewith. The apparatus comprises a heat transfer component, which is fixably joined to the frame in closely spaced relationship with an end portion of the rotatable shaft, and further comprises a radially, axially and tilt compliant sealing device, such as a flexible bellows, which is positioned to substantially enclose a space extending between the heat transfer component and a specified end portion of the shaft. A selected thermally conductive liquid metal, such as a gallium alloy, is contained within the enclosed space to provide a path for the flow of heat from the shaft to the heat transfer component, as the shaft and the anode rotate with respect to the frame. Such arrangement also permits expansion of the liquid metal, in the event of freezing.

    摘要翻译： 提供了一种用于具有框架，安装成相对于框架旋转的轴的X射线管和支撑在轴上以用于旋转的阳极的热去除装置。 该装置包括传热部件，该传热部件与可旋转轴的端部以紧密间隔的关系固定地连接到框架，并且还包括径向，轴向和倾斜的柔性密封装置，例如柔性波纹管，其被定位 基本上包围在传热部件和轴的指定端部之间延伸的空间。 所选择的导热液体金属（例如镓合金）被包含在封闭空间内，以便随着轴和阳极相对于框架旋转而提供从轴到传热部件的热量流动的路径。 在冷冻的情况下，这种布置还允许液态金属膨胀。

    X-ray detector array maintained in isothermal condition
    7.
    发明授权
    X-ray detector array maintained in isothermal condition 失效
    X射线探测器阵列保持等温条件

    公开(公告)号：US06249563B1

    公开(公告)日：2001-06-19

    申请号：US09456629

    申请日：1999-12-08

    申请人： Douglas J. Snyder ,  Carey S. Rogers ,  Brian J. Graves

    发明人： Douglas J. Snyder ,  Carey S. Rogers ,  Brian J. Graves

    IPC分类号： G01N2300

    CPC分类号： G01N23/046 ,  A61B6/035 ,  A61B6/4488 ,  G01N2223/419

    摘要： X-ray detector apparatus is provided for use in a CT imaging system having a rotatable gantry. The apparatus comprises a selected number of X-ray detector cells and two curved rails, which hold the detector cells in an array comprising an arcuate configuration and mount them onto the gantry for rotation therewith. Conduit segments are distributed along the rails, each conduit segment being proximate to a corresponding group of X-ray detector cells, and a quantity of selected working fluid and a porous wick structure is sealably enclosed in each conduit segment. The fluid is disposed to move along a conduit segment in gaseous form by means of convection, and to move in the opposing direction through the wick structure, in liquid form, by means of capillary action Heat is thereby transferred along a conduit segment to maintain a substantially isothermal condition among the detector cells proximate thereto.

    摘要翻译： 提供X射线检测器装置用于具有可旋转机架的CT成像系统。 该装置包括选定数量的X射线检测器单元和两个弯曲轨道，其将检测器单元保持在包括弓形构造的阵列中并将其安装到台架上以与其一起旋转。 导管段沿轨道分布，每个导管段接近相应的一组X射线探测器单元，并且一定数量的所选择的工作流体和多孔芯结构可密封地封闭在每个导管段中。 流体被设置成通过对流沿气体形式的管道段移动，并且通过毛细管作用以液体形式沿相反方向移动通过芯结构，由此沿着导管段传递以保持一个 接近其的检测器单元之间的基本等温条件。

    Jet cooled x-ray tube window
    8.
    发明授权
    Jet cooled x-ray tube window 有权
    射流冷却x射线管窗

    公开(公告)号：US06714626B1

    公开(公告)日：2004-03-30

    申请号：US10065392

    申请日：2002-10-11

    申请人： Madhusudhana T. Subraya ,  Carey S. Rogers ,  Michael J. Price

    发明人： Madhusudhana T. Subraya ,  Carey S. Rogers ,  Michael J. Price

    IPC分类号： H01J3516

    CPC分类号： H01J35/18 ,  H01J2235/122 ,  H01J2235/1283 ,  H05G1/025

    摘要： An x-ray tube window cooling assembly (11) for an x-ray tube (18) is provided. The cooling assembly (11) includes an electron collector body (110) coupled to an x-ray tube window (104) and having a first coolant circuit (112). The coolant circuit (112) includes a coolant inlet (114) and a coolant outlet (122). The coolant outlet (122) directs coolant at an x-ray tube window surface (152) to impinge upon and cool the x-ray tube window (104). The coolant is reflected off the reflection surface (146) as to impinge upon and cool the x-ray tube window (104). A method of operating the x-ray tube (18) is also provided.

    摘要翻译： 提供了一种用于X射线管（18）的X射线管窗冷却组件（11）。 冷却组件（11）包括耦合到X射线管窗口（104）并具有第一冷却剂回路（112）的电子收集体（110）。 冷却剂回路（112）包括冷却剂入口（114）和冷却剂出口（122）。 冷却剂出口（122）引导冷却剂在x射线管窗表面（152）处冲击并冷却X射线管窗口（104）。 冷却剂从反射表面（146）反射以撞击并冷却X射线管窗口（104）。 还提供了一种操作X射线管（18）的方法。