U.S.-Mexico Cooperative Research on Neutron Multiplicity

美国-墨西哥中子多重性合作研究

• 批准号: 8702289
• 负责人: Joseph Natowitz
• 金额: $ 1.18万
• 依托单位: Texas A&M University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1990-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8702289&HistoricalAwards=false
• 关键词: U.S.; Mexico; Cooperative; Research; Neutron

This research project involves an international collaboration between Professors J. Natowitz and R. Schmitt of Texas A&M University (TAMU), and Professors M.E. Brendan and A. Menchacha Rocha of the Physics Institute of the Universidad Nacional Autonoma de Mexico (UNAM). The collaborators intend to study properties of nuclei having very high excitation energies within temperatures approaching the average binding energy per nucleon. To the research they will bring to bear the latest experimental facilities such as: i) a new K500 superconducting cyclotron located at TAMU that will greatly increase the energy and mass of particles useful for nuclear experiments; ii) an advanced neutron ball multiplicity detector, which acts as a very powerful filter in studying both nuclear reaction mechanisms and the properties of highly excited nuclei; and iii) discrete phostron detectors, to be designed and constructed by the UNAM group, which will greatly enhance the utility of the neutron ball detector. The investigators will focus on important aspects of intermediate energy heavy ion collision using sophisticated techniques and equipment. The U.S. investigators have made valuable contributions to the present understanding of reaction and particle emission mechanisms, and the Mexican investigators also possess expertise in experimental heavy ion science at low and intermediate energies. The degree of interaction between the two experienced groups of researchers increases the likelihood that the project will be one of mutual benefit, thus fulfilling a prime objective of the U.S.-Mexico Program. Given the researchers past records, the potential for significant advance is very high.

该研究项目涉及德克萨斯农工大学(TAMU)的J.Natowitz教授和R.Schmitt教授，以及墨西哥国立自治大学(UNAM)物理研究所的M.E.Brendan教授和A.Michacha Rocha教授之间的国际合作。合作者打算研究在接近每个核子平均结合能的温度范围内具有非常高激发能的核的性质。对于这项研究，他们将使用最新的实验设备，如：i)位于TAMU的新的K500超导回旋加速器，它将极大地增加用于核实验的粒子的能量和质量；ii)先进的中子球多重数探测器，它在研究核反应机制和高激发核性质方面发挥着非常强大的过滤器的作用；以及三)将由UNAM小组设计和建造的分立光子式探测器，这将极大地提高中子球探测器的效用。研究人员将利用尖端技术和设备重点研究中能重离子碰撞的重要方面。美国研究人员对目前对反应和粒子发射机制的了解做出了宝贵的贡献，墨西哥研究人员也拥有中低能重离子实验科学的专业知识。这两组经验丰富的研究人员之间的互动程度增加了该项目互惠互利的可能性，从而实现了美墨计划的主要目标。考虑到研究人员过去的记录，取得重大进展的潜力非常大。