Status of the high‑intensity heavy‑ion accelerator facility in China
Status of the high‑intensity heavy‑ion accelerator facility in China
复制标题
我国高强度重离子加速器装置现状
DOI：
10.1007/s43673-022-00064-1
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
the HIAF project team
中科院分区：
文献类型：
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作者：
Xiaohong Zhou;Jiancheng Yang;the HIAF project team
核物理学的目标是理解强相互作用物质的起源、结构和性质，它们构成了宇宙中几乎所有可见物质。尽管在过去的世纪中取得了巨大的突破和成就，但仍然存在一些至关重要的问题，这些问题使今天的核物理充满活力，并激励着在世界范围内建造下一代重离子加速器复合体。为推动我国重离子科学技术的发展，中国政府于2015年批准了中国科学院近代物理研究所提出的强流重离子加速器装置（HIAF）。HIAF由超导离子直线加速器、高能同步加速器助推器、高能放射性同位素束线、实验储存环和一些实验装置组成。通过使用HIAF的特点是前所未有的强离子束从氢到铀，我们可以产生大量的奇异的核物质，通常不会在地球上发现，包括超重核素，短寿命的极富中子和质子丰富的核素，有限的核物质的量子色动力学相图，奇异的核素包含超子，介子核束缚系统，和高电荷离子。因此，HIAF将把研究人员带到推动核物理学中最具活力和最迷人的领域的最前沿，例如探索质子和中子数方面核素存在的极限，发现奇异的核结构和性质，然后研究背后的物理，了解宇宙中重元素的起源，描绘强相互作用物质的相图，此外，HIAF将为重离子在生命科学、空间科学和材料科学中的应用提供一个良好的平台。HIAF的建设于2018年12月启动，历时7年。土木工程及基础设施正按时间表进行建设，并将于二零二三年七月竣工。加速器关键技术的研发正在顺利进行，并与国内外大学、研究所和公司合作制造了核心器件原型。目前，我们已进入各种仪器的招标和批量生产阶段。我们计划在2023年夏季开始设施安装。HIAF用户社区作为一个面向国内外科研人员开放的科学用户平台，在确定科研项目和提出需求方面发挥着重要作用。我们呼吁专业知识，愿望，和合作者的主机资源。专门针对具体研究主题的合作已经建立并将建立。这些合作开发新的实验技术和方法，并负责设计和建立测量系统。我们已经完成了实验装置的设计。新型充气反冲分离器和新型储存环等时质谱仪已经建成，其他测量系统正在建设中。该设施计划于2025年底投入使用。在投入25亿元人民币的HIAF运行后，这座世界一流的设施将通过提供卓越的发现潜力，确保中国在重离子物理和技术方面的持续竞争力。基于HIAF，我们的目标是建立一个世界领先的实验室，用于核科学，加速器物理和技术以及高能重离子应用的研究和教育，以满足社会需求。本文介绍了土木工程的发展和现状，
Nuclear physics has been aiming at understanding of the origin, structure, and property of strongly interacting matters, which constitute nearly all visible matter in the universe. Despite tremendous breakthroughs and achievements over the past century, there still exists overarching questions that animate nuclear physics today and incite constructing next-generation heavy-ion accelerator complexes worldwide. In order to promote the national development of heavy-ion science and technology, China government approved the high-intensity heavy-ion accelerator facility (HIAF) in 2015, proposed by the Institute of Modern Physics, Chinese Academy of Sciences. HIAF is composed of a superconducting ion linear accelerator, a high-energy synchrotron booster, a high-energy radioactive isotope beam line, an experimental storage ring, and a few experimental setups. By using HIAF characterized with unprecedented intense ion beams from hydrogen through uranium, we can produce a large variety of exotic nuclear matters not normally found on the Earth, including super-heavy nuclides, short-lived extremely neutron-rich and proton-rich nuclides, finite nuclear matters in the quantum chromodynamics phase diagram, exotic nuclides containing hyperons, meson-nucleus-bound systems, and highly charged ions. Therefore, HIAF will bring researchers to the forefront of promoting the most vigorous and fascinating fields in nuclear physics, such as to explore the limits to the existence of nuclides in terms of proton and neutron numbers, to discover exotic nuclear structure and properties and then to study the physics behind, to understand the origin of heavy elements in the cosmos, to depict the phase diagram of strongly interacting matter, etc. In addition, HIAF will provide an excellent platform to develop heavy-ion applications in life science, space science, and material science. The construction of HIAF started up in December of 2018 and takes 7 years. The civil engineering and infrastructure are being constructed on time schedule and will be completed in July, 2023. R&D on key accelerator techniques are going on successfully, and prototypes of core devices are fabricated in collaboration with home and abroad universities, institutes, and companies. Presently, we come to the stage of invitation for bids and volume production of various apparatuses. We plan to start facility installation in summer of 2023. As a scientific user facility opening to domestic and oversea researchers, HIAF user community plays key roles in defining research programs and raising requirements. We call upon expertise, aspirations, and resources of a host of collaborators. Collaborations, dedicated to specific research subjects, are established and will be established. These collaborations develop new experimental techniques and methods and take responsibility for design and building of measurement systems. We have completed the design of experimental setups. A new gas-filled recoil separator and a novel storage-ring-based isochronous mass spectrometer are already built, and other measurement systems are under construction. The facility commissioning is scheduled at the end in the year of 2025. After into operation of the 2.5 billion Chinese yuan HIAF, this world-class facility will ensure the nation’s continued competitiveness in heavy-ion physics and technology through provision of outstanding discovery potential. Based on HIAF, we aim at establishing a world’s leading laboratory for research and education in nuclear science, accelerator physics and technology, and applications of energetic heavy ions to meet societal needs. In this paper, progress and status of civil engineering …