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Examining Nuclear Structure with Fast Neutrons

用快中子检查核结构

基本信息

批准号：
1913028
负责人：
Erin Peters
金额：
$ 50万
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：
2019
资助国家：
美国
起止时间：
2019-08-15 至 2024-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1913028&HistoricalAwards=false
关键词：
Examining Nuclear Structure Fast Neutrons

项目摘要

The nucleus is billions of times smaller than is visible with the human eye and so we cannot merely take a photograph to understand its properties and structure. At UKAL, we employ a particle accelerator to produce nuclear reactions that create gamma rays which are characteristic of the nucleus we wish to study. From these gamma rays, we can develop an image of the nucleus of an atom and gain an understanding of how the neutrons and protons interact within it. In addition, students at the undergraduate, graduate, and post-graduate levels gain a world-class education while participating in these studies. Graduates of our program receive hands-on experience and emerge as well-trained nuclear scientists who are capable of important contributions to our national energy, medical, and security needs.The primary aim of the research program at the University of Kentucky Accelerator Laboratory (UKAL) is to address open questions in nuclear structure and outstanding problems in related areas of nuclear science to which we can uniquely contribute. This broad-based research program includes selected studies in several forefront areas: nuclear structure relevant to neutrinoless double-beta decay; nuclei undergoing shape transitions; deformed structures and shape coexistence; nuclear structure contributions in support of studies of fundamental symmetries. The most unique capability of the laboratory is the availability of a mono energetic beam of fast neutrons to do inelastic scattering experimenst to investigate low-energy collective modes in nuclei. With the inelastic scattering of neutrons, we are able to obtain information which is not accessible at other facilities. Experimental innovations in our laboratory include the development of capabilities for measuring lifetimes in heavy nuclei with the Doppler-shift attenuation method following the inelastic scattering of the fast neutrons. These advances, coupled with the unique capabilities of our laboratory for the production of high-quality, time-bunched monoenergetic neutrons, have permitted us to address important questions and make meaningful contributions in nuclear structure physics and fundamental symmetries. We have also opened other areas of study and engaged in complementary experiments with collaborators at other nuclear accelerator laboratories. Education at all levels continues to be an emphasis in our laboratory activities and research at a small accelerator laboratory permits the mentoring of young scientists on a daily basis.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

原子核比人眼可见的小数十亿倍，因此我们不能仅仅通过拍照来了解它的性质和结构。在 UKAL，我们使用粒子加速器来产生核反应，产生伽马射线，这是我们希望研究的原子核的特征。通过这些伽马射线，我们可以形成原子核的图像，并了解中子和质子在原子核内如何相互作用。此外，本科生、研究生和研究生级别的学生在参与这些学习的同时获得了世界一流的教育。我们项目的毕业生获得实践经验，并成为训练有素的核科学家，他们能够为我们国家的能源、医疗和安全需求做出重要贡献。肯塔基大学加速器实验室 (UKAL) 研究项目的主要目的是解决核结构中的悬而未决的问题以及我们可以做出独特贡献的核科学相关领域的突出问题。这个基础广泛的研究计划包括几个前沿领域的选定研究：与中微子双β衰变相关的核结构；原子核经历形状转变；变形结构与形状共存；核结构对支持基本对称性研究的贡献。该实验室最独特的能力是可以使用单能快中子束进行非弹性散射实验，以研究原子核中的低能集体模式。通过中子的非弹性散射，我们能够获得其他设施无法获得的信息。我们实验室的实验创新包括开发利用快中子非弹性散射后的多普勒频移衰减方法测量重核寿命的能力。这些进步，加上我们实验室生产高质量、时间束单能中子的独特能力，使我们能够解决重要问题，并在核结构物理和基本对称性方面做出有意义的贡献。我们还开设了其他研究领域，并与其他核加速器实验室的合作者进行了补充实验。各级教育仍然是我们实验室活动的重点，小型加速器实验室的研究允许每天对年轻科学家进行指导。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

期刊论文数量（18）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Multiple Shape Coexistence in 110,112Cd and Beyond Mean Field Calculations

110,112Cd 及以上平均场计算中的多种形状共存

DOI：
发表时间：
2020
期刊：
Journal of Physics: Conference Series (JPCS
影响因子：
0
作者：
352. P.E. Garrett, T.R. Rodríguez
通讯作者：
352. P.E. Garrett, T.R. Rodríguez

Neutron elastic and inelastic scattering differential cross sections on carbon

碳上的中子弹性和非弹性散射微分截面

DOI：
10.1016/j.nuclphysa.2022.122446
发表时间：
2022
期刊：
Nuclear Physics A
影响因子：
1.4
作者：
Ramirez, A.P.D.;Peters, E.E.;Vanhoy, J.R.;Hicks, S.F.;Alasagas, L.A.;Alcorn-Dominguez, D.K.;Block, S.T.;Byrd, S.T.;Chouinard, E.A.;Combs, B.M.
通讯作者：
Combs, B.M.

Detailed spectroscopy of Ca46 : A study of the β− decay of K46

Ca46 的详细光谱：K46 β 衰变的研究

DOI：
10.1103/physrevc.100.054327
发表时间：
2019
期刊：
Physical Review C
影响因子：
3.1
作者：
Pore, J. L.;Andreoiu, C.;Smith, J. K.;MacLean, A. D.;Chester, A.;Holt, J. D.;Ball, G. C.;Bender, P. C.;Bildstein, V.;Braid, R.
通讯作者：
Braid, R.

Relevance of the Nuclear Structure of the Stable Ge Isotopes to the Neutrino-less Double-Beta Decay of 76 Ge

稳定Ge同位素核结构与76 Ge无中微子双β衰变的相关性

DOI：
10.1051/epjconf/202023204011
发表时间：
2020
期刊：
EPJ Web of Conferences
影响因子：
0
作者：
Yates, S. W.;Peters, E. E.;Crider, B. P.;Mukhopadhyay, S.;Ramirez, A. P.;Mitchell, A.J.;Pavetich, S.;Koll, D.
通讯作者：
Koll, D.

Quadrupole Deformation of $^{110}$Cd Studied with Coulomb Excitation

库仑激发下(^{110})Cd的四极变形研究

DOI：
10.5506/aphyspolb.51.789
发表时间：
2020
期刊：
Acta Physica Polonica B
影响因子：
0.5
作者：
Wrzosek-Lipska, K.;Próchniak, L.;Garrett, P.E.;Yates, S.W.;Wood, J.L.;Napiorkowski, P.J.;Abraham, T.;Allmond, J.M.;Bello Garrote, F.L.;Bidaman, H.
通讯作者：
Bidaman, H.