公开(公告)号：US20050220247A1

公开(公告)日：2005-10-06

申请号：US10818848

申请日：2004-04-06

申请人： Francis Ruddy ,  Abdul Dulloo ,  John Seidel ,  Thomas Congedo ,  Bojan Petrovic ,  Vefa Kucukboyaci

发明人： Francis Ruddy ,  Abdul Dulloo ,  John Seidel ,  Thomas Congedo ,  Bojan Petrovic ,  Vefa Kucukboyaci

IPC分类号： G21G1/06

CPC分类号： G01V5/0091

摘要： A method and associated apparatus for detecting concealed fissile, fissionable or special nuclear material in an article, such as a shipping container, is provided. The article is irradiated with a source of fast neutrons, and fast neutrons released by the fissile or fissionable material, if present, are detected between source neutron pulses. The method uses a neutron detector that can detect and discriminate fast neutrons in the presence of thermal neutrons and gamma radiation. The detector is able to process high count rates and is resistant to radiation damage, and is preferably a solid state neutron detector comprised of silicon carbide.

摘要翻译： 提供了用于检测物品（例如运输容器）中的隐形裂变，可裂变或特殊核材料的方法和相关装置。 用快中子源照射物品，在源中子脉冲之间检测由易裂变材料或可裂变材料释放的快中子（如果有的话）。 该方法使用中子探测器，可以在存在热中子和γ辐射的情况下检测和区分快中子。 检测器能够处理高计数率并且耐辐射损伤，并且优选是由碳化硅组成的固态中子检测器。