Collaborative Research: ARI-MA: Nuclear Data Measurements Using Gamma Rays and Radiation Detector Development

该奖项的主要目标是对国内核探测办公室(DNDO)感兴趣的氡系元素和其他材料进行NRF横截面测量。这项工作将使用三角大学核实验室的高强度伽马射线源(HIGS)进行。在开发和运行伽马射线束检查系统所需的数据中，有用于确定同位素的核共振荧光数据和用于确定裂变材料的光中子反应数据。此外，这些数据对于用于分析爆前和爆后材料的核法医技术的应用也很重要。这项研究将由杜克大学和北卡罗来纳A&A；T州立大学(NC A&A；T)两个机构的研究小组合作进行。其他合作者包括来自劳伦斯利弗莫尔国家实验室、洛斯阿拉莫斯国家实验室和太平洋西北国家实验室的物理学家。这项研究将在四个类别中为DNDO的任务做出贡献：(1)与开发货物非侵入性检查技术以降低辐射威胁风险相关的科学；(2)对发展对爆炸前和爆炸后材料进行核取证的能力至关重要的科学；(3)新型辐射探测器技术的科学和工程；以及(4)开发对DNDO任务和履行国土安全部职责重要的新技术所需的科学队伍。该项目将为包括杜克大学、北卡罗来纳州立大学、北卡罗来纳州立大学和佛罗里达农工大学在内的多所大学的研究生和本科生提供研究机会。这项研究将在伦敦大学教育丰富的环境中进行，该校目前约有45名博士研究生。由于Tunl的研究小组通常规模较小，学生们经常以学徒式的方式与教师和博士后密切合作，这对他们来说是有好处的。北卡罗来纳州农工大学的研究小组和佛罗里达农工大学的学生的参与还有一个额外的好处，就是让这些历史悠久的黑人大学的学生体验到使用尖端粒子和伽马射线探测技术，并开发与解决高度优先的国家安全问题相关的实验技术。

The main goal of this award is to make NRF cross-section measurements on actinides and other materials of interest to the Domestic Nuclear Detection Office (DNDO). This work will be carried out using the High Intensity Gamma-ray Source (HIGS) at the Triangle Universities Nuclear Laboratory (TUNL). Among the data needed for developing and operating gamma-ray beam inspection systems are nuclear resonance fluorescence (NRF) data for isotope identification and photoneutron reaction data for identifying fissile materials. In addition, these data are important for applications in nuclear forensic techniques applied to analyzing pre-detonation and post-detonation materials. The research will be carried out by a collaboration of research groups from two institutions: Duke University and North Carolina A&T State University (NC A&T). Other collaborators include physicists from Lawrence Livermore National Laboratory, Los Alamos National Laboratory and Pacific Northwestern National Laboratory. This research will contribute to the mission of the DNDO in four categories: (1) science relevant to developing technologies for non-intrusive inspection of cargo to reduce risk of radiological threats, (2) science important for developing capabilities for performing nuclear forensic on pre-detonation and post-detonation materials, (3) science and engineering of novel radiation detector technologies, and (4) the scientific workforce needed to develop new technologies important to the mission of DNDO and to carry out the duties of the Department of Homeland Security. The project will provide research opportunities for graduate and undergraduate students at several universities including Duke University, NC A&T State University, NC State University and Florida A&M University. The research will be conducted in the educationally rich environment at TUNL which currently has about 45 PhD degree graduate students. Because research groups at TUNL are typically small, the students have the benefit of routinely working closely with faculty and postdocs in an apprenticeship style. The involvement of the research group from NC A&T and with students at Florida A&M have the added benefit of giving students at these Historically Black Universities experience with using leading edge particle and gamma-ray detection technologies and developing experimental techniques that are relevant to addressing high-priority national security issues.