Software and hardware upgrade of light scattering instrument

光散射仪软硬件升级

• 批准号: 406974-2011
• 负责人: Frisken, Barbara
• 金额: $ 1.07万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472596
• 关键词: Software; hardware; upgrade; light; scattering

Laser light scattering can be used to probe the structure and dynamics of a wide range of systems including colloids, gels, emulsions and vesicles. Small length scale structures, such as interfaces, concentration or density fluctuations, result in variations in the index of refraction which, in turn, scatter light. By analyzing the time dependence of light scattered from a material and the intensity of light scattered in different directions, a variety of useful material properties can be measured. In particle dispersions, such properties include particle size, molecular weight, mobility and the strength of interparticle interactions, while in gels and other more continuous systems properties include morphology and viscoelastic moduli.

激光光散射可用于探测各种系统的结构和动力学，包括胶体、凝胶、乳液和囊泡。 小长度尺度的结构，例如界面、浓度或密度波动，会导致折射率的变化，进而散射光。通过分析材料散射光的时间依赖性以及不同方向散射光的强度，可以测量各种有用的材料特性。 在颗粒分散体中，这些特性包括粒度、分子量、流动性和颗粒间相互作用的强度，而在凝胶和其他更连续的系统中，这些特性包括形态和粘弹性模量。