ENVISAGE: Evaluation and validation of the SIGMA gamma-ray tracking detector in relevant environments

ENVISAGE：SIGMA伽马射线跟踪探测器在相关环境中的评估和验证

• 批准号: ST/Y509917/1
• 负责人: Laura Joanne Harkness-Brennan
• 金额: $ 61.97万
• 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: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FY509917%2F1
• 关键词: ENVISAGE; Evaluation; validation; SIGMA; gamma

ENVISAGE seeks to evaluate and validate the performance of a novel radiation detection system for locating sources of gamma-radiation, progressing from Technology Readiness Level 4 to 5. The Segmented Inverted Coaxial Germanium (SIGMA) detector is a gamma-ray tracking and imaging device designed to offer unrivalled performance over other large volume germanium detectors. This is achieved by combining digital signal processing with a unique detector design. An accurate measurement of gamma-ray interaction position and energy within the detector is key to unlocking its state-of-the-art performance.The long-term vision is to operationalise the SIGMA technology in two environments. The first is deployment of a mobile SIGMA detector array at international accelerator laboratories to address questions in nuclear structure and nuclear astrophysics, including STFC Science challenges: (A6) How do nuclear reactions power astrophysical processes and create the chemical elements and (C6) what is the nature of nuclear matter? A key example is the study of extremely exotic nuclei at international accelerator facilities, in which SIGMA will facilitate ultra-sensitive decay spectroscopy experiments by identifying low-yield events within complex and high radiation backgrounds through gamma-ray tracking. The second environment is deployment of SIGMA as a spectroscopic gamma-ray imager in nuclear decommissioning to locate, identify and quantify gamma radiation.The project has 4 objectives:1. Evaluate performance for decay spectroscopy experiments. 2. Evaluate performance for gamma-ray imaging in nuclear decommissioning.3. Enhance detector manufacturing yield.4. Develop a network of potential end users.For objective 1, the Jysväskylä Accelerator Laboratory (JYFL) has been agreed as a test site due to their strong interest in adopting SIGMA technology. JYFL has one of the most versatile and efficient systems for decay spectroscopy of exotic nuclei in the world [NUPECC Long Range Plan 2017]. Objective 2 underpins deployment of SIGMA technology at industrially relevant gamma-ray imaging scenarios, which will have societal and economic impact. Objective 3 and 4 will underpin wider market adoption through technology development and user engagement.

Envisage旨在评估和验证用于定位伽马射线源的新型辐射检测系统的性能，从技术准备就绪级别4到5级。分段的倒置同轴存在（Sigma）检测器是一种伽马射线跟踪和成像设备，旨在为其他大容量兵器检测器提供无与伦比的性能。这是通过将数字信号处理与独特的检测器设计相结合来实现的。对检测器内的伽马射线相互作用位置和能量的准确测量是释放其最先进的性能的关键。长期视觉是在两个环境中运行Sigma技术。首先是在国际加速器实验室部署移动Sigma探测器阵列，以解决核结构和核天体物理学中的问题，包括STFC科学挑战：（A6）核反应如何为天体物理过程创造化学元素和（C6）核问题的性质是什么？一个关键的例子是对国际加速器设施中极为异国情调的核的研究，其中Sigma通过通过伽马射线跟踪来鉴定复杂和高辐射背景中的低质量事件来促进超敏感的衰变光谱实验。第二个环境是将Sigma作为光谱伽马射线成像仪的部署，以定位，识别和量化γ辐射。该项目有4个目标：1。评估衰减光谱实验的性能。 2。评估核退役中伽马射线成像的性能3。增强探测器制造产量4。开发一个潜在的最终用户网络。对于目标1，Jysväskylä加速器实验室（JYFL）由于对采用Sigma技术的浓厚兴趣而被同意为测试站点。 JYFL是世界上用途最广泛，最有效的系统之一，用于世界上的外来核的衰减光谱[NUPECC远程计划2017]。目标2基于在与工业相关的伽马射线成像方案中部署Sigma技术，这将产生社会和经济影响。目标3和4将通过技术开发和用户参与来支持更广泛的市场。