Acquisition of an X-Ray Diffraction Facility for Materials Development and Characterization

9803098 Clark该奖项为在科罗拉多大学博尔德校区建立区域X射线衍射设施提供支持。 该设施将满足科罗拉多前线对高分辨率、高强度实验室X射线衍射的关键需求。 该设施将由物理系凝聚态实验室建立、运行和维护，并将提供给科罗拉多大学校园和科罗拉多前沿山脉的材料研究小组。 该仪器将是多功能的，允许高和低分辨率衍射，将容纳大型样品室，包括低温恒温器，烘箱和磁场，使实验在广泛的样品温度范围内，并将包括一个区域检测器，静态以及时间分辨衍射。 X射线发生器是一个旋转阳极系统，可提供两个等效的点源X射线束。 将一个光束引导至4周期衍射仪和闪烁检测器，用于进行θ-2 θ或h-k-l扫描衍射。 另一束将与区域探测器一起用于单晶学、小角度X射线散射和时间分辨实验。 每个光束路径/样品保持器/检测器组件将安装在其自己的光学台上，并由其自己的计算机独立控制，这种配置将使两个实验能够同时进行。 此次收购得到了地区材料科学界的广泛支持，用户来自科罗拉多大学的几个部门，包括物理，化学，化学工程，机械工程和地质学，以及工业和主要的前沿研究机构，包括NIST，国家可再生能源实验室，科罗拉多矿业学院，科罗拉多州立大学，和怀俄明州大学。 由PI和初始用户名册提出的正在进行的和新的研究项目代表了定义凝聚相研究的广泛领域。 建议在以下领域进行试验：液晶的结构分析，高Tc超导体，激光沉积的金属氧化物薄膜，新液晶材料的开发，离子选择性膜的结构，原子层控制的膜生长技术的开发，用于用基于RNA的酶转染细胞的核酶-阳离子脂质复合物的表征，磷脂相和小管的结构，聚合物界面的反射率研究，聚合物/单体-液晶复合材料的表征，陶瓷涂层和薄膜的表征。 衍射仪系统将与其他几种材料表征仪器组合在一起，并作为一种自助用户设施，由一名训练有素的工作人员在物理学CML设施委员会的指导下进行维护。 %%% ***

9803098 Clark This award provides support to create a regional x-ray diffration facility on the Boulder campus of the University of Colorado. This facility will fill a critical need on the Colorado Front Range for high resolution, high intensity laboratory-based x-ray diffraction. This facility will be set up, operated, and maintained by the Condensed Matter Laboratory of the Department of Physics, and will be made available to materials research groups on the University of Colorado campus and the Colorado Front Range. The instrument will be versatile, allowing both high and low resolution diffraction, will accomodate large sample chambers, including cryostats, ovens, and magnetic fields, enabling experimentation over a wide range of sample temperatures, and will include an area detector, for static as well as time-resolved diffraction. The x-ray generator is a rotating anode system which provides two equivalent, point source x-ray beams. One beam will be directed to a 4 cycle diffractometer and scintillation detector for performing theta - two theta or h-k-l scanned diffraction. The other beam will be used in conjuction with an area detector for single crystallography, small angle x-ray scattering, and time-resolved experiments. Each beam path/sample holder/detector assembly will be mounted on its own optical table and will be independently controlled by its own computer, a configuration that will enable two experiments to be performed simultaneously. This acquisition has broad support among the regional materials science community, with users from several University of Colorado Departments, including Physics, Chemistry, Chemical Engineering, Mechanical Engineering, and Geology, as well as from industry and the major Front Range research institutions, including NIST, the National Renewable Energy Laboratory, Colorado School of Mines, Colorado State University, and University of Wyoming. Ongoing and new Research projects proposed by the PIs and ini tial roster of users represent a broad spectrum of field defining condensed phase research. Experiments are proposed in the following areas: structural analysis of liquid crystals, high Tc superconductors, laser-deposited metal oxide thin films, new liquid crystal materials development, structure of ion-selective membranes, development of atomic layer controlled film growth techniques, characterization of ribozyme - cationic lipid complexes for transfection of cells with RNA-based enzymes, structure of phospholipid phases and tubules, reflectivity studies of polymeric interfaces, characterization of polymer/monomer -liquid crystal composites, characterization of ceramic coatings and films. The diffractometer system will be clustered with several other materials characterization instruments and operated as a self-supporting user facility maintained by a trained staff member under the direction of the Physics CML Facilities Committee. %%% ***