Development of Apparatus for Nuclear Astrophysics Utilizing Stable and Unstable Nuclear Beams

利用稳定和不稳定核束的核天体物理装置的开发

• 批准号: 9512199
• 负责人: Fred Becchetti
• 金额: $ 21.8万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9512199&HistoricalAwards=false
• 关键词: Development; Apparatus; Nuclear; Astrophysics; Utilizing

A unique type of apparatus will be developed jointly by the University of Michigan and Notre Dame University that will permit studies of low-energy nuclear reactions key to better understanding the production of energy and synthesis of the elements in astrophysical processes. The latter include BigBang nucleosynthesis and the production of energy and heavy elements in stars and supernovae (exploding stars). Improved nuclear measurements will help clarify some of the outstanding mysteries that exist in astrophysics. The proposed apparatus will consist of a small but highintensity electrostatic ion accelerator coupled to a specially designed, high-efficiency magnetic detection device. The latter will consist of two large superconducting magnets which will be designed and built in the U.S. as a collaborative effort with a U.S. industrial partner. The apparatus proposed will be part of a Midwest low-energy nuclear accelerator facility located at the University of Notre Dame. A unique feature of the facility will be the production of relatively intense, short-lived unstable nuclear beams for the study of reactions related to explosive nucleosynthesis. The new apparatus will also be available for new types of applied research in atomic physics, biophysics and materials science. It will serve a dozen or more universities and colleges in the immediate area with extensive participation by undergraduates, graduate students, and faculty from those institutions (U. Michigan, U. Notre Dame, Oberlin College, Ohio State U., U. Indiana-So. Bend, U.W. Kentucky, Hope College, MSU, U. Illinois,...).

密歇根大学和圣母大学将联合研制一种独特的仪器，用于研究低能核反应，这是更好地了解天体物理过程中能量产生和元素合成的关键。 后者包括大爆炸核合成以及在恒星和超新星（爆炸恒星）中产生能量和重元素。 改进的核测量将有助于澄清天体物理学中存在的一些悬而未决的谜团。 拟议的装置将包括一个小的，但高强度的静电离子加速器耦合到一个专门设计的，高效率的磁检测设备。 后者将由两个大型超导磁体组成，将在美国设计和制造，作为与美国工业合作伙伴的合作努力。拟议中的装置将是位于圣母大学的中西部低能核加速器设施的一部分。 该设施的一个独特之处将是产生相对强烈、寿命短的不稳定核束，用于研究与爆炸性核合成有关的反应。 新仪器还将用于原子物理学、生物物理学和材料科学的新型应用研究。 它将服务于附近地区的十几所大学和学院，并有来自这些机构的本科生、研究生和教师的广泛参与。 密歇根大学圣母院，奥伯林学院，俄亥俄州州立大学，联合 印第安纳-所以。弯曲，U.W.肯塔基州，霍普学院，密歇根州立大学，美国 伊利诺伊州，.）。