核分析光谱和离子束在纳米材料研究中的应用:越南原子能公司与杜布纳JINR合作项目

Tuyen Luu Anh, Hung Nguyen, N. Tiep, D. Phuc, P. Phuc, L. Thai, T. Xuan, P. Huế, N. Hue, L. Nguyen, N. Trung
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引用次数: 0

摘要

由于近几十年来科学技术的飞速发展,固体物理、化学和材料科学的基础研究越来越多地集中在维度和时间尺度上的物体和现象上,并且通过引入“纳米物理、纳米科学、纳米材料等”等术语,为公众所熟知,经常出现在媒体上。因此,研究人员不断寻找更好的调查技术。各种核分析光谱,如正电子湮灭寿命(PAL)、正电子湮灭能多普勒增宽(DB)、电子动量分布(EMD)、慢正电子束(SPB)、中子衍射(ND)、卢瑟福后向散射(RBS)等,已经证明自己是微观分析不同材料结构的有用工具,范围从埃(Ȧ)到纳米(nm)。此外,加速器产生的离子束(electron, 1H, 2He, 40Ar, 86Kr, 109Ag, 123Xe, 184W等)也成为修饰纳米材料微观结构的非常有效的工具。这些方法已经被我们在Vinatom的团队与JINR (Dubna)的外部合作集中使用,以研究不同纳米材料的深度结构。这份报告介绍了我们的研究和合作活动,设施和一些最近突出的成果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of nuclear analytical spectroscopies and ion beams to the study of nanomaterials: cooperative projects between Vinatom and JINR (Dubna)
Due to the rapid scientific and technological development in the last decades, basic research in solid state physics, chemistry and material science has focused on objects and phenomena more and more confined in dimensions and time-scale, and well visible for the general publicity by introducing the terms “nanophysics, nanoscience, nanomaterials, etc.”, often featured in the media. Researchers therefore keep searching for better and better investigative techniques. Various nuclear analytical spectroscopies, such as Positron annihilation lifetime (PAL), Doppler broadening of positron annihilation energy (DB), Electron momentum distribution (EMD), Slow positron beam (SPB), Neutron diffractions (ND), Rutherford backscattering (RBS), etc., have proved themselves as useful tools for microscopic analysis of different material’s structure ranging from angstrom (Ȧ) to nanometer (nm) scales. Besides, ion beams generated from accelerators (electron, 1H, 2He, 40Ar, 86Kr, 109Ag, 123Xe, 184W, etc.) have also become very effective tools for modifying the micro structure of nanomaterials. These methods have been intensively utilized by our group at Vinatom with external collaborations from JINR (Dubna) in order to study the in-depth structure of different nanomaterials. This report introduces our research and collaborative activities, facilities and some recent highlighted results.
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