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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability
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NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability

机译：密歇根州立大学的NSCL和FRIB：核科学处于稳定性极限

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摘要

The National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU) is a scientific user facility that offers beams of rare isotopes at a wide range of energies. This article describes the facility, its capabilities, and some of the experimental devices used to conduct research with rare isotopes. The versatile nuclear science program carried out by researchers at NSCL continues to address the broad challenges of the field, employing sensitive experimental techniques that have been developed and optimized for measurements with rare isotopes produced by in-flight separation. Selected examples showcase the broad program, capabilities, and the relevance for forefront science questions in nuclear physics, addressing, for example, the limits of nuclear existence; the nature of the nuclear force; the origin of the elements in the cosmos; the processes that fuel explosive scenarios in the Universe; and tests for physics beyond the standard model of particle physics. NSCL will cease operations in approximately 2021. The future program will be carried out at the Facility for Rare Isotope Beams, FRIB, presently under construction on the MSU campus adjacent to NSCL. FRIB will provide fast, stopped, and reaccelerated beams of rare isotopes at intensities exceeding NSCL's capabilities by three orders of magnitude. An outlook will be provided on the enormous opportunities that will arise upon completion of FRIB in the early 2020s.
机译：密歇根州立大学（MSU）的国家超导回旋加速器实验室（NSCL）是一个科学的用户设施，可提供多种能量的稀有同位素束。本文介绍了该设施，其功能以及用于进行稀有同位素研究的一些实验设备。 NSCL的研究人员执行的通用核科学计划继续使用已开发并优化用于机上分离产生的稀有同位素的测量的敏感实验技术，来解决该领域的广泛挑战。选定的例子展示了核物理学中最前沿的科学问题的广泛计划，能力和相关性，例如，解决了核存在的局限性;核力量的性质;宇宙中元素的起源;推动宇宙爆炸场景的过程;以及超出粒子物理标准模型的物理测试。 NSCL将在2021年左右停止运营。未来的计划将在FRIB的稀土同位素射束设施中进行，该设施目前正在与NSCL相邻的MSU校园内建设。 FRIB将提供强度超过NSCL能力三个数量级的稀有同位素快速，停止和重新加速的光束。展望了2020年代初FRIB完成后将出现的巨大机遇。

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