Sample identification system combining X-ray imaging and diffraction, based upon the use of a pixelated, energy resolving sensor

非法毒品是社会的一个主要问题，据估计，它每年花费英国154亿英镑。警察部队和UKBA官员面临的问题之一是能否对在疑似犯罪现场或在进入英国的入境点(机场、港口等)的个人或个人群体上发现的物体或集装箱进行测试。这个项目是开发一种紧凑的样品分析器，可以提供足够质量的详细分析，作为法庭证据，而不需要打开包装。该系统基于一种广为人知的分析方法--X射线衍射法。X射线衍射通常以两种方式之一进行。这些被称为角色散或能量色散，它们各有优缺点。该项目使用了卢瑟福·阿普尔顿实验室开发的一种新的X射线传感器，其模式允许将两种X射线衍射方法合并为一种。该方法综合了两种方法的优点，无需任何移动部件，即可在几秒钟内完成高质量的样品分析。

Illicit drugs are a major problem for society and it is estimated to cost the UK £15.4 billion per year. One of the problems faced by police forces and UKBA officers is the ability to test objects or containers found on individuals or groups of individuals at the scene of a suspected crime or at points of entry to the UK (airports, ports, etc). This project is to develop a compact sample analyser that could provide detailed analysis of sufficient quality to be used as evidence in court without opening the packaging. The system is based upon a novel approach to a well know analytical procedure - X-ray diffraction. X-ray diffraction is usually carried out in one of two ways. These are called angular dispersive or energy dispersive and they each have advantages and disadvantages. This project uses a new X-ray sensor developed by the Rutherford Appleton Laboratory in a mode that allows the two X-ray diffraction approaches to be combined into one. This uses the best of both approaches and gives high quality sample analysis in a matter of seconds without any moving parts.