Collective Nuclear Excitations and Nuclear Structures Probed with Fast Neutrons

用快中子探测集体核激发和核结构

• 批准号: 9515461
• 负责人: Steven Yates
• 金额: $ 52万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-15 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9515461&HistoricalAwards=false
• 关键词: Collective; Nuclear; Excitations; Structures; Probed

This grant supports the research of the nuclear structure group at the University of Kentucky. Most of their research utilizes fast neutrons from their small accelerator for nuclear reactions and scattering, often using isotopically enriched target materials. The resulting scattered neutrons or gamma rays reveal excitation modes at low excitation in the target nucleus. The group utilizes the Doppler-shift attenuation method to measure excited state lifetimes and gamma-gamma coincidence measurements are useful in identifying the nuclear states involved. The work with neutron excitation complements other methods of exciting nuclei and serves to complete our knowledge of nuclear structure at low excitation.

这笔赠款支持肯塔基大学核结构小组的研究。 他们的大部分研究利用小型加速器中的快中子进行核反应和散射，通常使用同位素浓缩的目标材料。 由此产生的散射中子或伽马射线揭示了目标核中低激发的激发模式。 该小组利用多普勒频移衰减方法来测量激发态寿命，而伽马-伽马符合测量可用于识别所涉及的核态。 中子激发的工作补充了其他激发原子核的方法，并有助于完善我们对低激发下核结构的了解。