An Atomic Physics Search for the Existence of Bound State Beta Decay

束缚态β衰变存在性的原子物理学研究

• 批准号: 9010982
• 负责人: Daniel Murnick
• 金额: $ 4.33万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-06-01 至 1992-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9010982&HistoricalAwards=false
• 关键词: Atomic; Physics; Search; Existence; Bound

This grant provides partial support for an investigation of of bound state beta decay, a phenomenon never before observed in the laboratory. Through the use of very sensitive resonance fluorescence detection methods, the formation of the 23S1 state of the 3He atom resulting directly from the beta decay of tritium will be measured. The direct formation of bound states following beta decay is expected to be of importance in nucleosynthesis. This experiment will utilize a lanthanide hexa-aluminate laser which is tunable around 1.08 micrometers.

这笔拨款为束缚态衰变的研究提供了部分支持，这是一种在实验室中从未观察到的现象。通过使用非常灵敏的共振荧光检测方法，将测量由氚的β衰变直接产生的3He原子的23S1态的形成。衰变后束缚态的直接形成预计在核合成中是重要的。这个实验将利用镧系六铝酸盐激光器，可调谐在1.08微米左右。