U.S.-Denmark Cooperative Research: High Spin States in Light Platinum Nuclei

美国-丹麦合作研究：轻铂核中的高自旋态

• 批准号: 8713386
• 负责人: Leo Riedinger
• 金额: $ 1.07万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-01-01 至 1989-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713386&HistoricalAwards=false
• 关键词: U.S.; Denmark; Cooperative; Research; Spin

This award will enable Dr. Leo L. Riedinger, University of Tennessee, Knoxville, and one of his postdoctoral fellows to collaborate with Dr. Jerry D. Garrett, of the Niels Bohr Institute, Copenhagen, Denmark. They will study high-spin nuclear states in neutron-deficient platinum nuclei. The heavy ion accelerator at the Niels Bohr Institute will be used for the measurements. Sulfur projectiles will initiate the reactions, and the new array of 20 Compton-suppressed Ge counters (the NORDBALL) will be used to detect the weak gamma rays from the high-spin states. The purpose of the proposed experiments is through ion-beam spectroscopy to learn about the effect of high-j quasiparticle alignment on the soft nuclear shapes in certain light isotopes of platinum. A new booster is being added to the accelerator in Denmark and will provide particles of appropriate energies. The Knoxville and Copenhagen research groups are each active in investigating high-spin angular momentum properties of nuclei produced in heavy-ion induced interactions. Scientists at the Niels Bohr Institute are among the world's leaders in research on high-spin properties of nuclei. This award will allow the U.S. and Danish researchers to continue their collaboration and to learn more about the shape of nuclei as a function of quasiparticle excitation and rotational frequency.

该奖项将使博士利奥L。里丁格大学 田纳西州，诺克斯维尔，和他的一个博士后研究员， 与Jerry D博士合作。尼尔斯·玻尔研究所的加勒特， 哥本哈根，丹麦。他们将研究高自旋核态， 缺中子的铂核 重离子加速器 Niels Bohr Institute将用于测量。 硫 发射物将引发反应，新的20个 康普顿抑制Ge计数器（NORDBALL）将用于 探测到来自高自旋态的微弱伽马射线。 实验的目的是通过离子束 光谱学来了解高j准粒子的影响 在某些轻同位素的软核形状上的排列 白金它 年，一种新的助推器被添加到加速器中。 丹麦并将提供适当能量的粒子。 的 诺克斯维尔和哥本哈根的研究小组都活跃在 研究原子核的高自旋角动量性质 产生于重离子诱导的相互作用。 的科学家 尼尔斯·玻尔研究所是世界上研究 原子核的高自旋特性。 该奖项将使美国和 丹麦研究人员将继续合作并了解更多信息 原子核的形状是准粒子激发的函数 和旋转频率。