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    Ionization chamber
    1.
    发明授权
    Ionization chamber 失效
    电离室

    公开(公告)号：US5003176A

    公开(公告)日：1991-03-26

    申请号：US509739

    申请日：1990-04-17

    申请人： Eiichi Tanaka ,  Tatsuro Hayashi

    发明人： Eiichi Tanaka ,  Tatsuro Hayashi

    IPC分类号： G01T1/185 ,  G01T7/00 ,  H01J47/02 ,  H01J47/04

    CPC分类号： H01J47/02 ,  H01J47/04

    摘要： An ionization chamber can stably measure a weak ionizing radiation with high sensitivity. The ionization chamber comprises an electrically conductive charge collecting electrode having a magnetic substance or a permanent magnet; an electromagnet for positioning the charge collecting electrode in non-contact with the other part of the ionization chamber; a position sensor for detecting the position of the charge collecting electrode; a circuit for feedback-controlling the magnetic force of the electromagnet to maintain the charge collecting electrode at the substantially same position; and ionization current detecting circuit for detecting an ionization current collected at the charge collecting electrode by ionization due to radiation applied to the ionization chamber.

    DIAGNOSIS SUPPORT SYSTEM USING PANORAMIC RADIOGRAPH AND DIAGNOSIS SUPPORT PROGRAM USING PANORAMIC RADIOGRAPH
    3.
    发明申请
    DIAGNOSIS SUPPORT SYSTEM USING PANORAMIC RADIOGRAPH AND DIAGNOSIS SUPPORT PROGRAM USING PANORAMIC RADIOGRAPH 有权
    诊断支持系统使用全景放射学和诊断支持程序使用全景放射学

    公开(公告)号：US20140009573A1

    公开(公告)日：2014-01-09

    申请号：US14005708

    申请日：2012-03-13

    申请人： Hiroshi Fujita ,  Takeshi Hara ,  Akitoshi Katsumata ,  Tatsuro Hayashi

    发明人： Hiroshi Fujita ,  Takeshi Hara ,  Akitoshi Katsumata ,  Tatsuro Hayashi

    IPC分类号： G06T7/00

    CPC分类号： G06T7/0012 ,  A61B6/14 ,  A61B6/5217 ,  A61B6/5241 ,  G06F19/00 ,  G06F19/321 ,  G16H50/20 ,  G16H50/50

    摘要： A diagnosis support system includes a diagnosis support computer that includes a model data acquisition unit configured to obtain a plurality of mandible model data, a contour model creation unit configured to create contour model data from the mandible model data, a contour database storage unit configured to construct a contour model database from the contour model data, a diagnosis image data receiving unit configured to receive an input of diagnosis image data of an examinee, an edge extraction unit configured to extract edge data from the diagnosis image data, a similar model searching unit configured to search contour model data based on the edge data, a position judgment unit and an image quality judgment unit configured to judge an imaging position and an image quality based on imaging information, respectively, and a diagnosis support information provision unit configured to provide diagnosis support information based on provider information.

    摘要翻译： 诊断支持系统包括诊断支持计算机，其包括被配置为获得多个下颌模型数据的模型数据获取单元，轮廓模型创建单元，被配置为从所述下颌模型数据创建轮廓模型数据;轮廓数据库存储单元，被配置为 从轮廓模型数据构建轮廓模型数据库，诊断图像数据接收单元，被配置为接收受检者的诊断图像数据的输入，被配置为从诊断图像数据提取边缘数据的边缘提取单元，类似的模型搜索单元 被配置为基于边缘数据搜索轮廓模型数据，位置判断单元和图像质量判断单元，其被配置为分别基于成像信息来判断成像位置和图像质量;诊断支持信息提供单元，被配置为提供诊断 根据提供者信息支持信息。

    Apparatus for measuring density or the like of an object having a small transmission factor
    6.
    发明授权
    Apparatus for measuring density or the like of an object having a small transmission factor 失效
    用于测量具有小透射系数的物体的密度等的装置

    公开(公告)号：US4949365A

    公开(公告)日：1990-08-14

    申请号：US312343

    申请日：1989-02-16

    申请人： Kiyoshi Koike ,  Keisuke Masueda ,  Hiroshi Uchida ,  Tatsuro Hayashi ,  Rikushi Morita

    发明人： Kiyoshi Koike ,  Keisuke Masueda ,  Hiroshi Uchida ,  Tatsuro Hayashi ,  Rikushi Morita

    IPC分类号： A61B6/00 ,  G01N9/24 ,  G01N23/06 ,  G01N23/08 ,  G01T1/164

    CPC分类号： G01N9/24 ,  A61B6/4258 ,  G01N23/08 ,  G01T1/1642

    摘要： An apparatus for measuring the density or the like of an object from the level of transmission through the object of gamma rays having different energy levels which are transmitted at the object by a gamma source having a predetermined solid angle of transmission. A collimator collimates gamma transmitted through the object and a scintillator generates light corresponding to the output of the collimator. Plural photomultipliers generate position-dependent electrical signals corresponding to the light generated by an incident gamma ray photon to the scintillator. A calculating circuit generates a density spectrum for the object from the position-dependent electrical signals by integrating the position-dependent electrical signals corresponding to each of the incident gamma ray photons to the scintillator.

    摘要翻译： 一种用于通过具有不同能级的伽马射线的透射水平测量物体的密度等的装置，其通过具有预定立体透射角的伽马源在物体处传送。 准直器准直透射通过物体的伽马射线，并且闪烁体产生对应于准直器的输出的光。 多个光电倍增管产生与由入射的伽马射线光子产生的光对应于闪烁体的位置相关的电信号。 计算电路通过将对应于每个入射的伽马射线光子的与位置相关的电信号与闪烁体进行积分，从位置相关电信号产生对象的密度谱。