U.S.-Mexico Collaborative Research: Sub-Barrier Fusion of Heavy Ions

美国-墨西哥合作研究：重离子的亚势垒聚变

• 批准号: 8803658
• 负责人: James Kolata
• 金额: $ 0.68万
• 依托单位: University of Notre Dame
• 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: 1988-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803658&HistoricalAwards=false
• 关键词: U.S.; Mexico; Collaborative; Research; Sub

This award will support collaborative research between Prof. James Kolata of the University of Notre Dame and Dr. Eli Aguilera and Dr. Jaime Vega of the Mexican National Institute for Nuclear Research (ININ). The goal of the research is to achieve a basic understanding of heavy-ion fusion. Since atomic nuclei repel each other strongly due to their electric charge, it is therefore necessary to supply a substantial amount of energy to the system to make their surfaces come into contact so that fusion can proceed. However, even if the surfaces do not touch, fusion may be accomplished through a process known as "quantum-mechanical tunneling", which forms the basis of several modern electronic devices. In the nuclear case, simple theoretical models of the process do not quite predict the strong enhancement accomplished by this "sub-barrier" fusion. Several complicated and generally mutually incompatible explanations have been formulated to explain this phenomenon but further study is needed to understand these effects. The proposed work is of high current interest because it represents an important way in which the effect of internal degrees of freeedom on the quantum-mechanical tunneling process can be studied. The proposed collaboration is an extension of previous efforts and is well matched to the strengths and facilities at both institutions. Detailed experimental measurements will be carried out at Notre Dame while the lengthy data-analysis phase of the work will be done at ININ using a powerful new computer system at that institute. The proposed work is likely to make a contribution to the field of heavy ion physics.

该奖项将支持詹姆斯教授之间的合作研究 圣母大学的Kolata博士和Eli Aguilera博士以及 墨西哥国家核研究所的海梅·维加 （ININ）. 研究的目的是实现一个基本的 重离子聚变的理解。 由于原子核相互排斥， 其他强烈由于他们的电荷，因此， 需要向系统提供大量的能量， 使它们的表面相互接触，这样就可以进行融合。 然而，即使表面不接触， 这是通过一个被称为“量子力学”的过程来完成的。 隧穿”，这构成了几个现代电子的基础 装置. 在核的情况下，简单的理论模型， 这一过程并不能完全预测 这种“亚屏障”融合。 几个复杂的和一般的 相互矛盾的解释已经被制定来解释 这一现象，但需要进一步研究，以了解这些 方面的影响. 拟议的工作是目前的高度兴趣，因为它代表了 一个重要的方式，其中的影响，内部程度的 量子力学隧穿过程中的自由度可以是 研究了 此次合作是对以往合作的延伸。 努力，并与双方的优势和设施相匹配 机构职能体系 将进行详细的实验测量 在巴黎圣母院， 将在ININ使用强大的新计算机系统完成， 院拟议的工作可能有助于 重离子物理学领域。