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    • 1. 发明授权
    • Gamma radiation imaging system for non-destructive inspection of the luggage
    • 伽玛辐射成像系统用于行李箱的无损检测
    • US07424094B2
    • 2008-09-09
    • US10542740
    • 2004-06-25
    • Jigang AnYisi LiuXincheng XiangHaifeng WuZhifang WuLiqiang Wang
    • Jigang AnYisi LiuXincheng XiangHaifeng WuZhifang WuLiqiang Wang
    • G01N23/04
    • G01N23/046G01N23/04G01N2223/419G01V5/0016G01V5/005G21K5/10
    • Gamma radiation imaging system for non-destructive inspection of the luggage contains a DR sub-system, which obtains the projected image of the luggage by translationally scanning, and a CT sub-system, which obtains the tornograph image of the luggage by rotating scanning. Said DR sub-system includes a fixed gantry, a conveyor system, a radiation source mounted on the fixed gantry, front and back collimators, and the array detector. Said CT sub-system includes a rotating gantry, a conveyor system, a radiation source mounted on the rotating gantry, front and back collimators, and the array detector, wherein, the radiation source in said CT sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity. Said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said rotating gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope; The radiation source in said DR sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity, said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said fixed gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope.
    • 用于行李无损检测的伽马射线成像系统包含DR子系统,通过平移扫描获取行李的投影图像,以及CT子系统,通过旋转扫描获取行李的地震图像。 所述DR子系统包括固定机架,输送机系统,安装在固定机架上的辐射源,前后准直仪和阵列检测器。 所述CT子系统包括旋转机架,传送系统,安装在旋转机架上的辐射源,前后准直仪和阵列检测器,其中,所述CT子系统中的辐射源为“ / SUP> Ir或<75> Se具有高比活度的放射性同位素γ源。 所述伽马源封闭在具有突出开口的屏蔽室中。 屏蔽室安装在所述旋转机架上。 所述阵列检测器适用于检测gamma detecting Ir Ir Ir or Se Se Se detecting detecting detecting detecting;;;;;;;;;;; 所述DR子系统中的辐射源是具有高比活性的192放射性同位素γ源,所述伽马源封装在具有突出 开放 屏蔽室安装在所述固定机架上。 所述阵列检测器适用于检测192和/或75Se放射性同位素的γ射线。
    • 2. 发明授权
    • Gas ionization array detectors for radiography
    • 用于放射照相的气体电离阵列检测器
    • US5796110A
    • 1998-08-18
    • US525580
    • 1995-09-18
    • Jigang AnHaifeng Wu
    • Jigang AnHaifeng Wu
    • G01T1/185H01J47/00H01J47/02
    • H01J47/02
    • The present invention provides a device of gas array detectors for high energy X or .gamma.-rays radiography. This device comprises a plurality of gas-pressurized array ion-chamber units mounted on a frame. Each of the gas-pressurized array ion-chamber units is constituted by pressure proof case (1,5), window (2), strap electrodes system (3), electrodes system support (4) and high pressure gas filled therein. The output signals of the detectors depend on the ionizing effect caused by the secondary electrons produced by the interactions of the X, .gamma.-rays and the high pressure gas.
    • PCT No.PCT / CN94 / 00008 Sec。 371 1995年9月18日第 102(e)1995年9月18日PCT PCT 1994年1月31日PCT公布。 第WO94 / 22163号公报 日期1994年9月29日本发明提供了一种用于高能X射线或γ射线照相术的气体阵列检测器的装置。 该装置包括安装在框架上的多个气体加压阵列离子室单元。 每个气体加压阵列离子室单元由耐压壳体(1,5),窗口(2),带状电极系统(3),电极系统支撑件(4)和填充在其中的高压气体构成。 检测器的输出信号取决于由X,γ射线和高压气体的相互作用产生的二次电子产生的电离效应。