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    • 30. 发明专利
    • Particle detection and applications in security and portal monitoring
    • 颗粒检测和安全和门户监测中的应用
    • JP2014112088A
    • 2014-06-19
    • JP2013255685
    • 2013-12-11
    • Los Alamos National Security Llcロス アラモス ナショナル セキュリティー,エルエルシー
    • MORRIS CHRISTOPHER LMARK F MAKELA
    • G01N23/04G01T1/167
    • G01N23/201G01N23/20G01V5/0025G01V5/0075G06F17/18
    • PROBLEM TO BE SOLVED: To provide techniques, apparatus and systems for detecting particles such as muons.SOLUTION: A monitoring system has a cosmic ray-produced charged particle tracker with a plurality of drift cells. The drift cells, e.g., aluminum drift tubes, can be arranged at least above and below a volume to be scanned to thereby track incoming and outgoing charged particles, such as cosmic ray-produced muons, while also detecting gamma rays. The system can selectively detect devices or materials, such as iron, lead, gold and/or tungsten, occupying the volume from multiple scattering of the charged particles passing through the volume and can also detect any radioactive sources occupying the volume from gamma rays emitted from the radioactive sources occupying the volume. If necessary, the drift tubes can be sealed to eliminate the need for a gas handling system. The system can be employed to inspect loaded vehicles at border checkpoints for nuclear threat objects.
    • 要解决的问题:提供用于检测诸如微子之类的颗粒的技术,装置和系统。解决方案:监测系统具有带有多个漂移单元的宇宙射线产生的带电粒子跟踪器。 漂移单元例如铝漂移管可以布置在要扫描的体积的至少上方和下方,从而跟踪进入和离开的带电粒子,例如宇宙射线产生的μ子,同时还检测γ射线。 该系统可以选择性地检测诸如铁,铅,金和/或钨的装置或材料,其占据通过该体积的带电粒子的多次散射的体积,并且还可以检测占据该体积的任何放射源, 放射源占据体积。 如有必要,漂移管可以被密封,以消除对气体处理系统的需要。 该系统可用于在边界检查站检查装载的车辆的核威胁物体。