Nuclear Physics Grants Panel Capital Equipment October 2018

核物理资助小组资本设备 2018 年 10 月

• 批准号: ST/S005749/1
• 负责人: Robert Page
• 金额: $ 11.3万
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FS005749%2F1
• 关键词: Nuclear; Physics; Grants; Panel; Capital

The nuclear physics laboratory at the University of Liverpool is the only UK laboratory that can characterise the gamma-ray response of semiconductor detectors. This is done for large complex geometry germanium detectors and pixelated cadmium zinc telluride detectors. These detectors are characterised by scanning a gamma-ray beam through the detector volume and measure the characteristic charge collection as a function on time over a wide range of points. This proposal is to establish a new scanning system at Liverpool which through the use of a stronger scanning source will lead to improved and more accurate data as more information can be collected in a given time. The performance will also be improved by using an improved time coincidence between the detectors which can eliminate some background events. The improved timing will also allow the zero time for the event to be defined more accurately. The is important for the new generation of drift type germanium detectors such as the SIGMA, BEGE and SAGe products. By using this new system alongside the existing system more detectors can be scanned in a given period leading to an improvement in the performance of detectors used for both the core nuclear physics programme and the applications programme in areas such as security, radioactive waste assay and medical imaging.

利物浦大学的核物理实验室是英国唯一一个能够描述半导体探测器的伽马射线响应的实验室。这是为大型复杂几何锗探测器和像素化镉锌碲化探测器完成的。这些探测器的特点是扫描伽玛射线束通过探测器体积和测量特征电荷收集作为一个函数的时间在大范围内的点。这项建议是在利物浦建立一个新的扫描系统，通过使用更强大的扫描源，可以在给定的时间内收集更多的信息，从而获得更准确的数据。通过改进检测器之间的时间一致性，可以消除一些背景事件，从而提高性能。改进的计时还允许更准确地定义事件的零时间。这对SIGMA、BEGE和SAGe等新一代漂移型锗探测器具有重要意义。通过与现有系统一起使用这个新系统，可以在给定的时间内扫描更多的探测器，从而改善了用于核心核物理方案和安全、放射性废物分析和医学成像等领域应用方案的探测器的性能。