GPR Integrated Mixed-field Imaging Approach for Radiological Characterisation of Decommissioning Nuclear Sites and Facilities

该项目的目的是利用最新研制的中子探测器和数据处理电子系统，研制中子成像仪，以精确定位退役设施中的中子发射材料。在这个项目中，学生将使用编码孔径（具有孔径阵列的掩模），其中材料（113Cd， W, W-113Cd, W- hdpe）以及各种厚度将被考虑。辐射强度图将投射到探测器的正面，相互作用将由位置敏感光电倍增管检测。探测器输出将连接到数据处理电子设备，并且需要进行编程，以便将强度模式数字化并流式传输到个人计算机。通过使用适当的技术和编程技巧解码数字化模式，将能够实时生成与所调查区域相对应的中子图像。整个装置将是便携式的，并且有望实现完全自动化。

The aim of this project is to use of a recently developed neutron detector, with a data processing electronic system to develop a neutron imager for precise location of neutron-emitting materials in decommissioning facilities. In this project student will use a coded-aperture (mask with array of apertures), where materials (113Cd, W, W-113Cd, W-HDPE), as well as various thicknesses will be considered. Radiation intensity pattern would be projected on the front face of the detector and interactions would be detected by a position-sensitive photomultiplier. The detector output would be connected to the data processing electronic and, is required to programme in order to digitise & stream the intensity pattern to a personal computer. By decoding the digitised pattern using appropriate techniques & programming skills, a neutron image would be able to generate in real-time corresponding to the area investigated. The complete unit would be portable and, expected to be fully automated.