Upgrading of an X-ray Diffractometer

X射线衍射仪的升级

• 批准号: 9004023
• 负责人: Stephen Altaner
• 金额: $ 1.51万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004023&HistoricalAwards=false
• 关键词: Upgrading; ray; Diffractometer

This award provides one-half of the funding needed to upgrade an X-ray diffractometer used by the Department of Geology at the University of Illinois. The University is committed to providing the remaining funds needed. The improved x-ray diffraction system will be used by several research programs that need to identify the mineralogy of sedimentary rocks, which typically exhibit X-ray diffraction patterns with numerous and broad overlapping peaks. The instrument upgrade includes incident beam slits for better resolution and the automation hardware and software for diffraction profile fitting procedures (Rietveld refinement) that will allow accurate determination of diffraction peak intensities, positions and shapes. Current projects that will make immediate use of the improved capabilities include research on the origin of coal, carbonate diagenesis, paleoceanography, and the mechanism of mineral-water interactions.

这项奖励提供了升级伊利诺伊大学地质学系使用的X射线衍射仪所需资金的一半。该大学致力于提供所需的剩余资金。几个需要识别沉积岩矿物学的研究项目将使用改进的X射线衍射系统，沉积岩的矿物学通常表现出具有大量和广泛重叠峰的X射线衍射图案。仪器升级包括用于更高分辨率的入射光束狭缝，以及用于衍射峰强度、位置和形状的精确确定衍射峰强度、位置和形状的衍射轮廓拟合程序(Rietveld细化)的自动化硬件和软件。目前将立即利用改进能力的项目包括研究煤的成因、碳酸盐成岩作用、古海洋学和矿物-水相互作用的机制。