CAREER: Ground State Magnetic Moments of Short-lived Nuclei Using Beta-NMR Spectroscopy

职业：使用 β-NMR 光谱法研究短寿命原子核的基态磁矩

• 批准号: 9983810
• 负责人: Paul Mantica
• 金额: $ 21万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9983810&HistoricalAwards=false
• 关键词: CAREER; Ground; State; Magnetic; Moments

The magnetic dipole moments of short-lived radioisotopes near the proton drip-line will be measured to explore the limit at which protons and neutrons can be treated as identical particles in the bound nucleus. The experimentswill be performed at the National Superconducting Cyclotron Laboratory atMichigan State University. The desired radioactive nuclei will be producedusing the fragmentation of intermediate-energy heavy-ion beams provided by the Coupled K500-K1200 Cyclotron Facility and selected from other species using the new A1900 fragment separator. The method of nuclear magnetic resonance on beta-emitting nuclei will be employed to deduce the ground state magnetic moments of very light magnesium and silicon isotopes. A method to directly measure the spin of the nuclear ground state will also be developed usingnuclear magnetic resonance and overtone spectroscopy. The state-of-the-art research facilities at the National Superconducting Cyclotron Laboratory provide a unique arena to advance the nuclear chemistry education of undergraduate, graduate, and postdoctoral students. The environment at the university-based cyclotron facility allows for a hands-on training experience for students at all levels. To bring practical nuclearscience experience to the classroon, a new junior/senior level chemistry class will be developed at Michigan State University. This course will provide students with a background in fundamental nuclear process and radiation detectiontechniques. Students will then apply this new knowledge to understand both cutting edge nuclear science research as well as current events having tiesto nuclear science.

将测量质子滴水线附近的短寿命放射性异位素的磁偶极力矩，以探索质子和中子可以视为结合核中相同颗粒的极限。 该实验将在国家超导汽车实验室Atmichigan州立大学进行。 所需的放射性核将产生由耦合的K500-K1200 Cyclotron设施提供的中间能量重型离子束的碎片，并使用新的A1900碎片分离剂从其他物种中选择。 将采用发射β发射核的核磁共振的方法来推断出非常轻镁和硅同位素的基态磁矩。 一种直接测量核基地态自旋的方法还将使用核磁共振和夸张光谱法开发。国家超导回旋实验室的最先进的研究设施为促进本科，研究生和博士后学生的核化学教育提供了一个独特的舞台。 总部位于大学的Cyclotron设施的环境为各个级别的学生提供了动手培训经验。 为了为ClassRoon带来实用的核学经验，将在密歇根州立大学开发新的初级/高级化学课程。 本课程将为学生提供基本核过程和辐射检测技术的背景。 然后，学生将应用这些新知识，以了解尖端核科学研究以及具有泰氏核科学的时事。