论文标题
快速成像特殊的核材料，以预防核不增殖和恐怖主义
Rapid imaging of special nuclear materials for nuclear non-proliferation and terrorism prevention
论文作者
论文摘要
我们介绍了一种新颖的技术，即中子伽马发射断层扫描（NGE），用于快速检测，3D成像以及特殊核材料（如武器级plutonium和铀）的特征。该技术改编自基本核物理学研究，代表了检测和成像少量此类材料的范式转移。该方法使用基于快速有机闪烁体的颗粒状检测系统，测量核裂变过程中发出的颗粒之间的特征快速时间和能量相关。实时使用此类相关性与现代机器学习技术结合使用的根本新方法可提供前所未有的成像效率，空间分辨率和超低的错误警报率，从而解决了恐怖主义的全球安全威胁，核武器的扩散以及不同的核事故现象和环境环境放射学测量。
We introduce a novel technique, neutron-gamma emission tomography (NGET), for rapid detection, 3D imaging, and characterization of special nuclear materials like weapons grade plutonium and uranium. The technique is adapted from fundamental nuclear physics research and represents a paradigm shift in the approach to detection and imaging of small quantities of such materials. The method uses a granular detection system based on fast organic scintillators, measuring the characteristic fast time and energy correlations between particles emitted in nuclear fission processes. The radically new approach of using such correlations in real time in conjunction with modern machine learning techniques provides unprecedented imaging efficiency, spatial resolution and ultra-low false alarm rates, addressing global security threats from terrorism, the proliferation of nuclear weapons, as well as different nuclear accident scenarios and environmental radiological surveying.
