Medical gamma ray imaging
    1.
    发明授权
    Medical gamma ray imaging 失效
    医疗伽马射线成像

    公开(公告)号:US4485307A

    公开(公告)日:1984-11-27

    申请号:US343077

    申请日:1982-01-27

    IPC分类号: G01T1/29 H01J47/02 G01T1/18

    CPC分类号: G01T1/2935 H01J47/02

    摘要: A method and apparatus for determining the distribution of a position-emitting radioisotope into an object, the apparatus consisting of a wire mesh radiation converter, an ionizable gas for propagating ionization events caused by electrodes released by the converter, a drift field, a spatial position detector and signal processing circuitry for correlating near-simultaneous ionization events and determining their time differences, whereby the position sources of back-to-back collinear radiation can be located and a distribution image constructed.

    摘要翻译: 一种用于确定位置发射放射性同位素分布到物体中的分布的方法和装置,该装置由丝网辐射转换器,用于传播由转换器释放的电极引起的电离事件的可电离气体,漂移场,空间位置 检测器和信号处理电路,用于使近同时电离事件相关并确定其时间差,从而可以定位背对背共线辐射的位置源并构建分布图像。