CRIS-TRAP: a gas-filled linear Paul trap for the CRIS experiment at ISOLDE

CRIS-TRAP：用于 ISOLDE 的 CRIS 实验的充气线性 Paul 阱

• 批准号: ST/S002316/1
• 负责人: Kieran Flanagan
• 金额: $ 9.56万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FS002316%2F1
• 关键词: CRIS; TRAP; gas; filled; linear

Nuclear Physics aims to understand the structure and dynamics of nuclear systems. It is the key to understanding the Universe from the first microseconds of its inception when the quark-gluon plasma prevailed, through its history of star and galaxy formation where nuclear reactions play an essential role both in the generation of energy and the creation of elements. The field also has applications that benefit society in diverse areas, from medicine and security to power production, and a strong impact on other fields of science.Atomic nuclei are a unique quantal laboratory in which microscopic as well as mesoscopic features, driven by effective two-body and three-body forces, can be studied. They are complex many-body systems, but often display unexpected regularities and simple excitation patterns that arise from underlying shell structure, pairing and collective modes of excitation. Such properties are also exhibited by simpler mesoscopic systems (for example, metallic clusters, quantum dots, and atomic condensates) the understanding of which draws heavily on techniques developed and honed in nuclear physics. A fundamental challenge is to understand nuclear properties ab-initio from the interplay of the strong, weak, and electromagnetic forces between individual nucleons. In recent years, enormous progress has been made with such programmes for light nuclei. For heavier nuclei, shell, cluster and other beyond mean field many-body techniques, based on effective interactions, provide essential frameworks for correlating experimental data, yet still lack the refinement to reliably predict nuclear properties as one moves more than a few nucleons from well-studied stable nuclei.We plan to make measurements of ground-state and isomer properties using lasers to yield data with which to study the development of nuclear shapes, the evolution of nuclear structure in exotic isotopes important for the s and r nucleosynthetic pathways. Precision laser spectroscopy experiments provide robust observables to test and validate these new theoretical models. This validation work directly supports the next generation of experiments searching for physics beyond the standard model, such as dark matter detection, neutrino oscillation and neutrinoless double beta decay, which all require accurate determination of the associated nuclear matrix elements. It is therefore essential that these nuclear theories are vigorously tested against experimental observables.

核物理学旨在了解核系统的结构和动力学。它是理解宇宙的关键，从它诞生的第一微秒开始，当夸克-胶子等离子体盛行时，通过它的星星和星系形成的历史，核反应在能量的产生和元素的创造中发挥着至关重要的作用。原子核是一个独特的量子实验室，在有效的二体和三体力的驱动下，可以研究微观和介观的特征。原子核是一个独特的量子实验室，在这个实验室里，可以研究微观和介观的特征，在这个实验室里，原子核的物理性质可以被称为量子力学。它们是复杂的多体系统，但经常显示出意想不到的非线性和简单的激发模式，这些模式来自底层的壳结构、配对和集体激发模式。这种性质也表现在更简单的介观系统（例如，金属团簇，量子点和原子凝聚体）中，对这些系统的理解在很大程度上依赖于核物理中开发和磨练的技术。一个基本的挑战是从单个核子之间的强、弱和电磁力的相互作用从头开始理解核性质。近年来，轻核的这类方案取得了巨大进展。对于较重的原子核，基于有效相互作用的壳层、团簇和其他超平均场多体技术为关联实验数据提供了必要的框架，然而仍然缺乏精确的方法来可靠地预测核的性质，因为人们从已经研究得很好的稳定核中移动了几个以上的核子。状态和异构体性质，利用激光产生数据，研究核形状的发展，对s和r核合成途径重要的外来同位素的核结构演变。精密的激光光谱实验提供了强大的可观的测试和验证这些新的理论模型。这项验证工作直接支持下一代寻找标准模型之外的物理学的实验，例如暗物质探测，中微子振荡和无中微子双β衰变，这些都需要精确确定相关的核矩阵元素。因此，这些核理论必须用实验观测值进行有力的检验。

项目成果

A compact RFQ cooler buncher for CRIS experiments

• DOI: 10.1007/s10751-019-1586-7
• 发表时间: 2019-04
• 期刊: Hyperfine Interactions
• 作者: B. Cooper;H. A.Perrett;C. Ricketts;C. Read;G. Edwards;K. Flanagan;J. Billowes;C. Binnersley-C.-Binnersl

A compact linear Paul trap cooler buncher for CRIS

• DOI: 10.1016/j.nimb.2019.04.054
• 发表时间: 2020-01
• 期刊: Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
• 影响因子: 1.3
• 作者: C. Ricketts;B. Cooper;G. Edwards;H. Perrett;J. Billowes;C. Binnersley;T. Cocolios;K. Flanagan-K.-Flanaga

A Review of Novel Instrumentation for Matrix Independent Ultratrace Analysis of Radionuclides using Collinear Resonance Ionisation Spectroscopy (CRIS)

• DOI: 10.1051/epjconf/202226104002
• 发表时间: 2022
• 期刊: EPJ Web of Conferences
• 作者: G. Edwards;H. Perrett;Matthew P Duggan;J. Reilly;K. Flanagan