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公开(公告)号:US4070581A
公开(公告)日:1978-01-24
申请号:US702093
申请日:1976-07-02
申请人: David John Gibbons , Wieslaw Antoni Karwowski , Charles Phillip Cousins , Ian MacDonald Green , John James Jarrett
发明人: David John Gibbons , Wieslaw Antoni Karwowski , Charles Phillip Cousins , Ian MacDonald Green , John James Jarrett
CPC分类号: G01T1/2018 , A61B6/032 , A61B6/4021
摘要: In a computerized axial tomographic apparatus it is proposed to use, as radiation detectors, alkali halide scintillator crystals cooperating with photodiodes to measure the light output therefrom, or else photodiodes directly sensitive to the radiation passed through the patient. For advantageous operation, especially in regard to drift and rapidity of operation, it is proposed to use the photodiodes photovoltaically and in the so-called "current mode".
摘要翻译: 在计算机化的轴向断层摄影装置中,建议使用与光电二极管协作的碱金属卤化物闪烁体晶体作为辐射检测器来测量其光输出,或者使用直接对通过患者的辐射敏感的光电二极管。 为了有利的操作,特别是关于漂移和操作的快速性,提出了光电二极管和所谓的“电流模式”来使用光电二极管。