下一代介子化学研究设备

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-01-29 DOI:10.3233/jnr-190118

M. Aramini, S. Cottrell, J. Peck, K. Yokoyama

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引用次数: 1

摘要

μ子光谱学通过对μ子离子的研究，为探索化学和化学物理中的许多机制提供了一种独特的灵敏方法。μ子离子是在μ子注入过程中形成的一种探针物质，化学上相当于氢。子化学领域的下一代实验将需要可靠的液体处理系统、现场实验能力和先进的方法，如射频(RF) μ子自旋共振光谱。本文讨论了样品处理系统的开发和调试，描述了适用于液体样品的除氧和转移的两个液体面板的细节，适用于射频μ子化学实验的现有4He流低温恒温器的中心棒的开发，专门针对射频液相化学实验优化的专用μ子化学插入，以及针对高频测量进行优化的鸟笼式射频腔，其几何形状非常适合利用化学插入的光束线实验。给出了实例数据，说明了这些设备的应用情况。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Next generation equipment for muon chemistry research

Muon spectroscopy offers a uniquely sensitive method for exploring many mechanisms in chemistry and chemical physics through the study of muonium, a probe species formed during muon implantation that is chemically equivalent to hydrogen. Next generation experiments in the field of muonium chemistry will require reliable liquid handling systems, in-situ experimental capabilities and access to advanced methods such as Radio-Frequency (RF) muon spin resonance spectroscopy. This paper discusses the development and commissioning of systems for sample handling, describing details of two liquid panels suitable for deoxygenation and transfer of liquid samples, the development of a centre stick for an existing 4He flow cryostat suitable for RF muon chemistry experiments, a dedicated muon chemistry insert specifically optimized for RF liquid phase chemistry experiments, and a birdcage RF cavity optimized for high frequency measurements and with a geometry wellsuited for beamline experiments that exploit the chemistry insert. Example data is presented, demonstrating the application of these various pieces of equipment.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.