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    Motor driven tuning and matching of RF coils in an NMR probe
    1.
    发明授权
    Motor driven tuning and matching of RF coils in an NMR probe 有权
    在NMR探头中进行电机驱动调谐和RF线圈匹配

    公开(公告)号：US06323647B1

    公开(公告)日：2001-11-27

    申请号：US09397366

    申请日：1999-09-16

    申请人： Weston A. Anderson ,  Howard D.W. Hill ,  Coriolan I. Frum ,  David H. Humber

    发明人： Weston A. Anderson ,  Howard D.W. Hill ,  Coriolan I. Frum ,  David H. Humber

    IPC分类号： G01V300

    CPC分类号： G01R33/3628

    摘要： An apparatus for tuning and/or matching a RF coil in a NMR probe comprising a first variable capacitor electrically connected to the coil and a first motor capable of coupling to the first variable capacitor. The first motor when coupled to the first capacitor adjusts a capacitance associated with the first capacitor. The first motor is capable of operating in a strong magnetic field and is capable of not disturbing homogeneity of said magnetic field when said motor is not operating. The apparatus may further include a second variable capacitor and a second motor. The first motor is further capable of coupling to the second capacitor for adjusting a capacitance associated with the second capacitor. The second motor moves the first motor between coupling with the first capacitor and coupling with the second capacitor. The mechanism may be employed to manipulate variable inductive loads for tuning and/or matching.

    摘要翻译： 一种用于调谐和/或匹配NMR探针中的RF线圈的装置，包括电连接到线圈的第一可变电容器和能够耦合到第一可变电容器的第一电机。 耦合到第一电容器的第一电动机调节与第一电容器相关联的电容。 第一电动机能够在强磁场中操作，并且当所述电动机不工作时能够不干扰所述磁场的均匀性。 该装置还可以包括第二可变电容器和第二电动机。 第一电动机还能够耦合到第二电容器，用于调节与第二电容器相关联的电容。 第二电动机使第一电动机与第一电容器耦合并与第二电容器耦合。 该机构可用于操纵用于调谐和/或匹配的可变感应负载。

    System and method for imaging and treatment of tumorous tissue in breasts using computed tomography and radiotherapy
    3.
    发明授权
    System and method for imaging and treatment of tumorous tissue in breasts using computed tomography and radiotherapy 有权
    使用计算机断层扫描和放射治疗乳腺肿瘤组织成像和治疗的系统和方法

    公开(公告)号：US07492858B2

    公开(公告)日：2009-02-17

    申请号：US11134695

    申请日：2005-05-20

    申请人： Larry D. Partain ,  David H. Humber

    发明人： Larry D. Partain ,  David H. Humber

    IPC分类号： A61B6/03 ,  A61B6/04

    CPC分类号： A61B6/482 ,  A61B6/032 ,  A61B6/0414 ,  A61B6/107 ,  A61B6/405 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/502 ,  A61B6/541 ,  A61N5/10 ,  A61N5/1081 ,  A61N2005/1097

    摘要： The present invention provides a system 10 for irradiating a breast 20 of a patient 22. The system 10 comprises a gantry 12 rotatable about a horizontal axis 14 and comprising a radiation source 16 for generating a radiation beam 18 and a detector 24 spaced from the radiation source 16, and a barrier 26 disposed between the patient 22 and the gantry 12. The barrier 26 is provided with an opening 30 adapted to allow a breast 20 passing therethrough to be exposed to the radiation beam 18. In some embodiments, the barrier 26 is provided with an opening 30 adapted to allow both the breast 20 and the tissue leading from the breast to axilla and the muscle tissue of the adjacent chest wall passing therethrough to be exposed to the radiation beam 18.

    摘要翻译： 本发明提供一种用于照射患者22的乳房20的系统10.系统10包括可围绕水平轴线14旋转的台架12，其包括用于产生辐射束18的辐射源16和与放射线隔开的检测器24 源16和设置在患者22和台架12之间的阻挡层26.阻挡层26设置有适于允许穿过其中的乳房20暴露于辐射束18的开口30.在一些实施例中，阻挡层26 设置有开口30，其适于允许乳房20和从乳房到达腋窝的组织和穿过其中的相邻胸壁的肌肉组织暴露于辐射束18。

    Integrated bearing assembly
    5.
    发明授权
    Integrated bearing assembly 有权
    集成轴承总成

    公开(公告)号：US06940947B1

    公开(公告)日：2005-09-06

    申请号：US10235457

    申请日：2002-09-05

    申请人： David H. Humber ,  Steve G. Bandy ,  Clifford K. Nishimoto ,  Gary F. Virshup

    发明人： David H. Humber ,  Steve G. Bandy ,  Clifford K. Nishimoto ,  Gary F. Virshup

    IPC分类号： H01J35/10

    CPC分类号： H01J35/101 ,  H01J2235/1066

    摘要： An integrated bearing assembly is provided, comprising a bearing housing defining an axial cavity in which a shaft is disposed. The shaft is rotatably supported by at least two bearing sets. The axial cavity defines three regions, each having distinct diameters. A pair of first regions defines cavity diameters sufficient to receive the bearing sets. A pair of second regions defines cavity diameters such that a small gap is defined between the inner surface of the cavity and the shaft. The third region cooperates with the shaft to define a cylindrical volume containing a coolant. Wettable coatings are utilized in the cylindrical volume to allow free flow of, and maximum contact with, the coolant. Non-wettable coatings are provided in the second regions to contain the coolant. The second regions also function as bearing spacers, thus simplifying bearing assembly design, assembly, and performance.

    摘要翻译： 提供了一种集成的轴承组件，其包括轴承壳体，所述轴承壳体限定轴设置轴向腔体。 轴由至少两个轴承组可旋转地支撑。 轴向腔体限定三个区域，每个区域具有不同的直径。 一对第一区域限定足以容纳轴承组件的腔直径。 一对第二区域限定空腔直径，使得在空腔的内表面和轴之间限定小的间隙。 第三区域与轴配合以限定包含冷却剂的圆柱形容积。 可润滑的涂层用于圆柱体积，以允许冷却剂的自由流动和最大程度的接触。 在第二区域中提供不可润湿的涂层以容纳冷却剂。 第二个区域也起到轴承间隔，从而简化了轴承组装的设计，组装和性能。

    Electron emitter and method of making same
    6.
    发明授权
    Electron emitter and method of making same 有权
    电子发射体及其制作方法

    公开(公告)号：US08498379B2

    公开(公告)日：2013-07-30

    申请号：US13465941

    申请日：2012-05-07

    申请人： Paul D. Moore ,  Stephen G. Bandy ,  Clifford K. Nishimoto ,  David H. Humber ,  Gary F. Virshup

    发明人： Paul D. Moore ,  Stephen G. Bandy ,  Clifford K. Nishimoto ,  David H. Humber ,  Gary F. Virshup

    IPC分类号： H01J35/00

    CPC分类号： H01J35/06 ,  H01J2235/06 ,  H01J2235/068

    摘要： One example embodiment includes methods for making electron emitters. The electron emitter comprises a conductive member that defines a plurality of filament segments that are integral with each other. Each filament segment includes an intermediate portion and an interconnecting portion attached to an adjacent filament segment. The intermediate portions are substantially coplanar with each other and each intermediate portion includes a substantially planar electron emission surface.

    摘要翻译： 一个示例实施例包括用于制造电子发射器的方法。 电子发射器包括限定多个彼此成一体的细丝部分的导电部件。 每个细丝段包括中间部分和连接到相邻细丝部分的互连部分。 中间部分基本上彼此共面，并且每个中间部分包括基本上平面的电子发射表面。