MRI: Acquisition of Si(Li) Detectors and Two BGO Compton Suppression Shields for the Development of the La Crosse fIREBAll

MRI：为开发 La Crosse fireBall 采购 Si(Li) 探测器和两个 BGO 康普顿抑制屏蔽

• 批准号: 1919364
• 负责人: Shelly Lesher
• 金额: $ 39.67万
• 依托单位: University of Wisconsin-La Crosse
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1919364&HistoricalAwards=false
• 关键词: MRI; Acquisition; Si; Li; Detectors

This award provides support for the University of Wisconsin - La Crosse (UWL), a primary undergraduate institution, to upgrade the existing ICEBall array into the La Crosse Internal conveRsion Electron Ball Array (fIREBAll) so that it has the capabilities to probe some of the most important unsolved questions in nuclear science. One of these questions was identified by the Nuclear Science Advisory Committee in 2015: what is the origin of the elements? Other questions include exploring how theoretical models describe light nuclei, low-lying energy levels, and the various degrees of freedom in deformed nuclei. The new instrument will be a significant addition to nuclear science and the only detector array of its type in the USA. In addition, fIREBAll will provide scientists and students at primarily undergraduate institutions access to cutting-edge nuclear science facilities and will contribute to the education and training of numerous US students. This is a unique opportunity to train students in various research and development skills including using various detectors, troubleshooting, gathering and analyzing data, and the disseminating results in a collaborative environment. These skills are transferable to careers which advance the national health, welfare, and secure national defense.The funds from this Major Research Instrumentation (MRI) grant will create an instrument for the measurements of conversion electrons in coincidence with gamma rays, while supporting the training of multiple undergraduate students in advanced detector techniques. The upgrade includes the purchase of six new Si(Li) detectors, two anti-Compton Bizmuth Germanate (BGO) shields for two existing Germanium gamma-ray detectors. The new fIREBAll with Compton suppressed Ge detectors will be a powerful tool to unravel some of the most outstanding challenges in nuclear structure (the nature of 0+ states in deformed nuclei, testing ab-initio theoretical model predictions in light nuclei) and nuclear astrophysics (the nature of the Hoyle state and other alpha cluster components in light nuclei effecting stellar evolution). The new instrument will be a significant addition to the capabilities of the nation and will open new opportunities for students from the University of Wisconsin - La Crosse (UWL) and other primarily undergraduate institutions (PUIs), including Indiana University South Bend (IUSB) and Indiana Wesleyan University (IWU).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项为威斯康星大学-La Crosse（UWL）提供了支持，该奖项是一家小学的本科机构，以将现有的冰球阵列升级到La Crosse内部转换电子球阵列（Fireball）中，以便它具有探测核科学中一些最重要的未解决问题的能力。核科学咨询委员会在2015年确定了其中一个问题：这些要素的起源是什么？ 其他问题包括探索理论模型如何描述光核，低洼能量水平以及变形核的各种自由度。该新仪器将是核科学的重要补充，也是美国唯一的检测器阵列。此外，Fireball将为本科机构的科学家和学生提供获得尖端核科学设施的访问权限，并将为许多美国学生的教育和培训做出贡献。这是一个独特的机会，可以培训学生的各种研发技能，包括使用各种检测器，故障排除，收集和分析数据以及在协作环境中传播结果。这些技能可以转移到推进国家健康，福利和安全的国防的职业中。这项主要研究工具（MRI）赠款的资金将与伽玛射线相吻合，同时支持培训高级检测器技术中的多名本科生。升级包括购买六个新的SI（LI）探测器，两个用于两个现有的锗伽马射线探测器的反Compton Bizmuth Dermanate（BGO）盾牌。带有康普顿抑制GE检测器的新火球将成为揭示核结构中一些最杰出挑战（变形核中0个以上状态的性质，测试光核中的AB-Initio理论模型预测）和核天体物理学（Hoyle State的本质和其他Alpha cluster contents in Light uniglei nible nible nible niblei效应st st s sTellal效应）。该新乐器将是国家能力的重要补充，并将为威斯康星大学的学生 - 拉克罗斯大学（La Crosse）（UWL）和其他主要是本科机构（PUI）（包括印第安纳大学南本德（IUSB）（IUSB）（IUSB）和印第安纳州卫斯理大学（Indiana Wesleyan University）（IWU）的基金会奖励的基金会的支持Eyt deem的资产，更广泛的影响审查标准。

项目成果

Transformation of ICEBall to fIREBall for conversion electron spectroscopy

将 ICEBall 转变为 fIREBall，用于转换电子能谱

• DOI: 10.1016/j.nima.2023.168288
• 发表时间: 2023
• 期刊: Detectors and Associated Equipment
• 作者: Lee, Kevin;Dulal, Christina;Tan, Wanpeng;Gyurjinyan, Armen;Sauer, Ethan;Lesher, Shelly;Aprahamian, Ani
• 通讯作者: Aprahamian, Ani