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旨在评估和验证一种用于定位伽马辐射源的新型辐射探测系统的性能，技术准备程度从4级提高到5级。分段倒置同轴锗（SIGMA）探测器是一种伽马射线跟踪和成像设备，旨在提供其他大体积锗探测器无法比拟的性能。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。探测器内伽马射线相互作用位置和能量的精确测量是解锁其最先进性能的关键。长期愿景是在两种环境中实施SIGMA技术。第一个是在国际加速器实验室部署移动的SIGMA探测器阵列，以解决核结构和核天体物理学问题，包括STFC科学挑战：（A6）核反应如何推动天体物理过程并产生化学元素，（C6）核物质的性质是什么？一个关键的例子是在国际加速器设施上研究极端奇异的核，其中SIGMA将通过伽马射线跟踪确定复杂和高辐射背景中的低当量事件，从而促进超灵敏衰变光谱学实验。第二个环境是部署SIGMA作为一个光谱伽马射线成像仪在核退役定位，识别和量化伽马辐射。评估衰变光谱实验的性能。2.评估伽马射线成像在核退役中的性能。提高探测器制造良率.建立潜在终端用户网络。对于目标1，由于Jysväskylä加速器实验室（JYFL）对采用SIGMA技术的浓厚兴趣，该实验室已被同意作为测试场地。JYFL拥有世界上最通用和最有效的奇异核衰变光谱系统之一[NUPECC长期计划2017]。目标2支持SIGMA技术在工业相关伽马射线成像场景中的部署，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采用。