Acquisition of a Charged Coupled Device (CCD) High Intensity X-ray Diffraction System for Materials Synthesis

用于材料合成的电荷耦合器件 (CCD) 高强度 X 射线衍射系统的获取

• 批准号: 9512503
• 负责人: Galen Stucky
• 金额: $ 25.51万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9512503&HistoricalAwards=false
• 关键词: Acquisition; Charged; Coupled; Device; CCD

9512503 Stucky A charge coupled device (CCD), high intensity X-ray diffractometer will be acquired and utilized for materials synthesis and biotechnology research. The CCD detector and associated software allow for nearly single photon detection efficiency and rapid readout time of 512x512 pixels. The ease of use and rapid screening time of this instrument will permit the quick characterization of crystals as small as a few micrometers and of molecular crystals that are unstable and tend to deteriorate in the X-ray beam. Biomolecular phases and liquid crystal/membrane based composites with large unit cell structures that produce a large range of scattered intensities will be structurally accessible with this instrument. Zeolites, porous mesostructured materials, and fullerine-type structures that cannot be otherwise characterized because of their low scattering cross section, will also be studied. The large improvement in sensitivity provided by this instrument, in combination with available nuclear magnetic resonance (NMR) resources, represents a unique capability for studying complicated partially ordered polymeric materials. %%% The high sensitivity, fast data collection, x-ray diffractometer will enable a new materials characterization capability that will impact an existing interdisciplinary program of over one hundred students and faculty. It will facilitate research programs concerned with the design, synthesis, and processing of advanced materials, studies of non- equilibrium transformations in complex fluids and biological systems, and protein structure-property relationships. ***

获得电荷耦合器件（CCD）、高强度x射线衍射仪，用于材料合成和生物技术研究。CCD检测器和相关软件允许近单光子检测效率和512 × 512像素的快速读出时间。该仪器的易用性和快速筛选时间将允许快速表征小至几微米的晶体和不稳定的分子晶体，并倾向于在x射线光束中变质。具有大单位细胞结构的生物分子相和液晶/膜基复合材料产生大范围的散射强度，将在结构上使用该仪器。沸石、多孔介结构材料和富勒碱型结构也将被研究，因为它们的低散射截面不能以其他方式表征。该仪器提供的灵敏度大幅提高，结合可用的核磁共振（NMR）资源，代表了研究复杂的部分有序聚合物材料的独特能力。高灵敏度，快速数据收集，x射线衍射仪将使一种新的材料表征能力，将影响现有的100多名学生和教师的跨学科项目。它将促进与先进材料的设计、合成和加工有关的研究项目，复杂流体和生物系统中非平衡转化的研究，以及蛋白质结构-性质关系。＊＊＊