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    Grid for vacuum electron device and method for manufacture of same
    69.
    发明申请
    Grid for vacuum electron device and method for manufacture of same 有权
    真空电子装置用栅格及其制造方法

    公开(公告)号：US20100090601A1

    公开(公告)日：2010-04-15

    申请号：US12008069

    申请日：2008-01-07

    申请人： Edward Lawrence Eisen ,  James Eric Kline

    发明人： Edward Lawrence Eisen ,  James Eric Kline

    IPC分类号： H01J25/00 ,  H01J9/00

    CPC分类号： H01J25/04 ,  H01J1/46 ,  H01J9/14 ,  H01J23/065

    摘要： A grid component for use with a vacuum electron device (VED), such as an inductive output tube (IOT), includes a skirt that adds structural support and aids in alignment. The grid component has a dome in which a grid pattern is formed and includes an annular, concentric flange surrounding the dome. The skirt is formed concentrically around the flange. Alignment orifices may be provided in the flange for passage of alignment pins in the assembled product. The grid, flange, and skirt are a unitary component and are formed by a chemical vapor deposition (CVD) or similar process, in which a mandrel is used to provide a deposition surface. The mandrel is placed in a furnace, and a high-temperature CVD process is used to break down a hydrocarbon gas to thereby deposit a pyrolytic graphite coating onto the mandrel. The mandrel may include a skirt template to provide the characteristic skirt.

    摘要翻译： 与真空电子装置（VED）一起使用的网格部件，例如感应输出管（IOT），包括增加结构支撑并辅助对准的裙部。 网格部件具有圆顶，其中形成网格图案并且包括围绕圆顶的环形同心凸缘。 裙部围绕法兰同心地形成。 对准孔可以设置在凸缘中，用于在组装的产品中通过对准销。 栅格，法兰和裙部是整体部件，并且通过化学气相沉积（CVD）或类似的工艺形成，其中心轴用于提供沉积表面。 将心轴放置在炉中，并且使用高温CVD工艺来分解烃气体，从而将热解石墨涂层沉积到心轴上。 心轴可以包括裙部模板以提供特征裙部。

    CT scanner
    70.
    发明申请
    CT scanner 有权
    CT扫描仪

    公开(公告)号：US20060233297A1

    公开(公告)日：2006-10-19

    申请号：US11402845

    申请日：2006-04-13

    申请人： Fumio Ishiyama

    发明人： Fumio Ishiyama

    IPC分类号： A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

    CPC分类号： H05G1/30 ,  A61B6/032 ,  A61B6/4014 ,  H01J23/065 ,  H01J35/045

    摘要： A CT scanner which collects X-ray projection data of a subject and which generates an image in the subject from the projection data, the CT scanner includes tubes which emit X-rays and which include grids to switch emission and stoppage of the X-rays, a unit which generates a high voltage to be supplied to the tubes, a cable which sends the high voltage to each of the tubes, circuits which change potentials of the grids arranged in the tubes, respectively, a control unit which controls the circuits to switch the emission and the stoppage of the X-rays in a pulse manner while the tubes rotate around the subject, detectors arranged to face the tubes, respectively, and a unit which validates an output signal from the detector facing the tube emitting the X-rays and which invalidates an output signal from the detector facing the tube stopping the emission of the X-rays.

    摘要翻译： 一种CT扫描器，其收集被摄体的X射线投影数据并从投影数据生成被摄体中的图像，CT扫描器包括发射X射线的管，其包括用于切换X射线的发射和停止的网格 产生向管供给的高电压的单元，分别向每个管发送高压的电缆，改变设置在管中的电网的电位的电路，控制单元，其控制电路 当管绕着被摄体旋转时，以脉冲方式切换X射线的发射和停止，分别布置成面对管的检测器和用于验证来自检测器的输出信号的单元，所述检测器面向发射X射线的管的输出信号， 并且使来自检测器的输出信号无效，所述检测器面向管阻止X射线的发射。