Scattering from Liquid Surfaces: Construction Funds for Beamline Xl9C at The National Synchrotron Light Source, Brookhaven National Laboratory

液体表面散射：布鲁克海文国家实验室国家同步加速器光源光束线 Xl9C 建设资金

• 批准号: 9200080
• 负责人: Stuart Rice
• 金额: $ 30万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9200080&HistoricalAwards=false
• 关键词: Scattering; Liquid; Surfaces; Construction; Funds

This award from the Chemistry Research Instrumentation Program will help the Department of Chemistry at the University of Chicago renovate the beamline X19C at the National Synchrotron Light Source, which will be used in research investigations in the following areas of chemistry: 1) determination of the structure of surfaces of complex fluids composed of polymers, lipids, lyotropic and thermotropic liquid crystals, 2) the structure of the liquid metal-vapor and liquid metal-liquid dielectric interfaces, and 3) the structure of monolayers of amphiphiles at the liquid-vapor and liquid-liquid interface. Surface sensitive x-ray scattering techniques are used to study phenomena occuring at liquid interfaces. These techniques require that the x-ray source have high brilliance, i.e., typically a synchrotron source must be used. A high-brillance source is needed because the number of scattering molecules at the interface is very small, the intrinsic scattering power of the organic compound of interest is very low, and the beam size required for grazing incidence Bragg diffraction is very small. The areas of potential technological application of the techniques which will be enabled by the instrumentation which will be provided are polymer surfaces and interfaces for improved lubrication and adhesion, cohesion of composite materials, synthetic thin films, coatings, and electrodes.

化学研究仪器计划的这个奖项 将帮助牛津大学化学系 芝加哥改造国家同步加速器的光束线X19 C 光源，将用于研究调查， 以下化学领域：1）测定 由聚合物组成的复杂流体的表面结构， 脂质、溶致液晶和热致液晶，2） 液态金属-蒸气和液态金属-液体的结构 介电界面，和3）单层的结构， 在液-气和液-液界面处的两亲物。 表面敏感的x射线散射技术被用来研究 在液体界面上发生的现象。 这些技术 要求X射线源具有高亮度，即， 通常必须使用同步加速器源。 高亮度 因为散射分子的数量在 界面非常小， 感兴趣的有机化合物非常低，并且光束尺寸 掠入射布拉格衍射所需的是非常小的。 的潜在技术应用领域 这些技术将由仪器实现， 将提供聚合物表面和界面， 改善复合材料的润滑性和附着力、内聚性 材料、合成薄膜、涂层和电极。