MRI/RUI: Acquisition of An X-Ray Diffractometer

在主要研究仪器（MRI）计划的支持下，Ryan S. Winburn和John R.迈诺特州立大学的韦伯斯特将获得一台X射线衍射仪。 利用该仪器进行的研究项目包括：（a）检查影响Rietveld定量X射线衍射准确性的仪器因素;（B）材料结构解;（c）作为岩石学研究一部分的火山岩定量矿物学分析;（d）确定火山岩的结构参数; e）定量矿物学分析和确定来自北达科他州砂岩的重矿物分离物的固溶体结构参数;以及f）确定与稳定性相关的河堤边坡的粘土矿物学。 X射线衍射仪可以精确测量分子的完整三维结构，包括键距和角度，并提供有关分子相对于相邻分子的空间排列的准确信息。 这些研究将对地球化学产生重大影响。

With support from the Major Research Instrumentation (MRI) Program, Ryan S. Winburn and John R. Webster of Minot State University will acquire an X-ray diffractometer. The research projects to be undertaken with this instrument include a) examination of instrumental factors affecting the accuracy of Rietveld quantitative X-ray diffraction; b) structure solution of materials; c) quantitative mineralogical analysis of volcanic rocks as part of petrologic research; d) determination of structural parameters of volcanic rocks; e) quantitative mineralogical analysis and determination of structural parameters in solid solutions for heavy mineral separates from North Dakota sandstones; and f) clay mineralogy of river embankment slopes to determine correlation with stability. The X-ray diffractometer allows accurate and precise measurements of the full three dimensional structure of a molecule, including bond distances and angles, and it provides accurate information about the spatial arrangement of the molecule relative to the neighboring molecules. These studies will have a strong impact in geochemistry.