U.S.-Germany Cooperative Study of Low Multipolarity MagneticTransitions in Selected Nuclei

美德合作研究选定原子核中的低多极性磁跃迁

• 批准号: 9113042
• 负责人: Lawrence Fagg
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-15 至 1998-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113042&HistoricalAwards=false
• 关键词: U.S.; Germany; Cooperative; Study; Low

This award supports Lawrence Fagg and several others of the Catholic University of America (CUA) to collaborate with Achim Richter and other physicists at the superconducting electron accelerator facility of the Institute of Nuclear Physics of the Technische Hochschule in Darmstadt, Germany. Several years ago the CUA group designed and built what was then the only low energy 180 degree electron scattering system in the world. It was installed at the Microtron Facility of the University of Illinois at Urbana-Champaign and operated successfully to obtain data on ten nuclei ranging from Carbon-13 to Gallium-71. However, in 1990 the Microtron Facility was shut down, terminating a very productive line of nuclear research. The CUA group arranged to ship the scattering system to Darmstadt, Germany for installation and use there. The support provided by this award will enable the CUA group to travel to Germany to complete the installation and testing of the scattering system over the next few months. Then they will be able to begin a series of collaborative experiments using the system to study low multipolarity magnetic transitions in several selected nuclei, including Helium-3, Neon-21, and Krypton-86. The system they built has a unique capability for investigating such transitions as well as ground-state magnetic structure.

该奖项支持美国天主教大学（CUA）的Lawrence Fagg和其他几位物理学家与德国达姆施塔特技术学院核物理研究所超导电子加速器设施的Achim Richter和其他物理学家合作。几年前，CUA团队设计并建造了当时世界上唯一的低能180度电子散射系统。它被安装在伊利诺伊大学厄巴纳-香槟分校的微波加速器设施中，并成功地获得了从碳-13到镓-71的十个原子核的数据。然而，在1990年，微波加速器设施被关闭，终止了一条非常富有成效的核研究路线。CUA集团安排将散射系统运送到德国的达姆施塔特进行安装和使用。该合同提供的支持将使CUA集团能够在未来几个月内前往德国完成散射系统的安装和测试。然后，他们将能够开始一系列合作实验，使用该系统研究几个选定的原子核中的低多极磁性跃迁，包括氦-3，氖-21和氪-86。他们建立的系统具有研究这种转变以及基态磁结构的独特能力。