Acquisition of a CCD-Detector Single Crystal Diffractometer

0003201 hughes这笔拨款为一个带有CCD探测器的单晶x射线衍射仪提供部分支持，该仪器将安置在俄亥俄州迈阿密大学的x射线晶体学实验室。两位pi John M. Hughes、John Rakovan和董海良均来自地质系。该小组包括一名具有丰富单晶x射线经验的中期研究人员，以及两名具有地球科学新兴领域（矿物表面结构和生物矿化）专业知识的早期研究人员。迈阿密大学的学生将广泛参与将要进行的研究。迈阿密大学的ccd探测器衍射仪的加入将允许对以前太小而无法通过x射线结构分析进行表征的样品进行调查。该仪器将用于研究天然材料的材料性质，如磷灰石、电气石、粘土矿物和生物矿物。这些研究在环境矿物学、医学矿物学、地球科学、生物形成矿物等方面具有重要意义。其他研究人员也将在时间允许的基础上使用该设施。该仪器将被安置在迈阿密校区休斯大厅新装修的房间里，并将补充现有的粉末x射线衍射设备，原子力显微镜和单晶x射线相机。除了地球科学仪器和设施项目（EAR/IF）的支持外，配套资金由俄亥俄州和迈阿密大学提供

0003201HughesThis grant provides partial support for a single crystal x-ray diffractometer with a CCD detector, to be housed in the X-ray crystallography laboratory at Miami University, Ohio. The PIs, John M. Hughes, John Rakovan, and Hailiang Dong, are all from the Department of Geology. The group includes a mid-career researcher with extensive single-crystal x-ray experience, and two early-career researchers with expertise in emerging areas of the Earth Sciences (mineral surface structure and biomineralization). Miami University students will be extensively involved in the studies to be undertaken.The addition of the CCD-detector diffractometer at Miami University will allow the investigation of samples that were previously too small for characterization through x-ray structure analysis. The instrument will be used to investigate material properties of natural materials such as apatite, tourmaline, clay minerals, and biominerals. The studies are of importance in the studies of environmental mineralogy, medical mineralogy, earth science, and the formation of minerals by organisms. The facility will also by used by other researchers on a time-available basis. The instrument will be housed in a newly renovated room in Hughes Hall on the Miami campus, and will complement the existing powder x-ray diffraction equipment, atomic force microscope, and single-crystal x-ray cameras. In addition to support from the Earth Sciences Instrumentation and Facilities Program (EAR/IF), matching funds are provided by the State of Ohio and Miami University.***