MRI: Acquisition of an X-Ray Diffraction (XRD) System

MRI：X 射线衍射 (XRD) 系统的采集

• 批准号: 1531585
• 负责人: Nancy Savage
• 金额: $ 19.74万
• 依托单位: University of New Haven
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-15 至 2017-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1531585&HistoricalAwards=false
• 关键词: MRI; Acquisition; Ray; Diffraction; XRD

The University of New Haven (UNH) will purchase a multipurpose X-Ray diffractometer (XRD) system capable of identifying the crystalline phase of solid materials, determining the thickness of thin films and measuring particle sizes. The instrument will be used by faculty and students in several academic programs at UNH including Chemistry, Electrical Engineering, Environmental Engineering, Mechanical Engineering, Forensic Science and Environmental Science, with a focus on undergraduate and graduate student research training. Faculty and student researchers will investigate topics such as chemical sensing, catalysis, green chemistry, environmental remediation and biomedical research. The acquisition of a modern XRD system at the University of New Haven will have significant impact on the greater University community. Activities that include the XRD will be developed for UNH programs with the Engineering and Science University Magnet School (ESUMS) a grade 6-12 school with a diverse population drawn from the greater New Haven area. Availability of the XRD system on campus will enable faculty at UNH to build partnerships and strengthen existing collaborations with faculty at nearby institutions such as the Yale British Art Gallery and the New Haven Mineral Club. UNH is primarily an undergraduate institution and the instrument will also be available to the faculty for use in laboratory courses. Acquisition of a multipurpose XRD system, with capabilities for small angle x-ray scattering (SAXS) and X-Ray Reflectivity measurements will have a significant effect on the scholarly activity of the faculty and students at the University of New Haven. The XRD will be able to analyze samples in the standard Bragg Brentano geometry used for powder XRD measurements as well as in a parallel beam mode, which will enable the X-ray reflectivity measurements necessary for the study of thin films. In addition, the instrument will be equipped with a SAXS accessory for the study of small particles, whether in solid or solution form. The proposed research projects cover a wide range of scientific and engineering disciplines. These projects include: 1) Investigation of electrospun and mesoporous oxides for application in separations, chemical sensing and catalysis (Chemistry), 2) Characterization of nanomaterials, such as CVD-graphene and tunable thermal interface materials (Electrical Engineering), 3) Particle size measurements of polymer nanobeads used in drug delivery (Chemistry), 4) Crystal structure determination of green catalysts (Chemistry), 5) Determination of the mechanism of atrazine dechlorination in water through the structure and speciation of the surface bimetal catalysts (Environmental Engineering), 6) Identification of changes in mineral compositions of soil that result from the in situ chemical oxidation process used to treat organic contamination (Environmental Engineering, 7) Study of the protein fouling of medical devices 8) Building a diffraction pattern library of automotive paint chip samples (Forensic Science), and 9) Collection of powder diffraction measurements of mineral samples, with the intent to cross-reference with Raman spectroscopic measurements (Environmental Science). Undergraduate and graduate students, through their participation in one of these research projects, will receive a unique, specialized research training on advanced instrumentation not normally available at similarly sized institutions.

纽黑文大学（UNH）将购买一个多用途X射线衍射仪（XRD）系统，能够识别固体材料的晶相，确定薄膜的厚度和测量颗粒尺寸。该仪器将由UNH的教师和学生在几个学术课程中使用，包括化学，电气工程，环境工程，机械工程，法医学和环境科学，重点是本科生和研究生的研究培训。教师和学生研究人员将调查的主题，如化学传感，催化，绿色化学，环境修复和生物医学研究。纽黑文大学现代XRD系统的收购将对更大的大学社区产生重大影响。包括XRD在内的活动将与工程和科学大学磁铁学校（ESUMS）一起为UNH项目开发，ESUMS是一所6-12年级的学校，拥有来自大纽黑文地区的多样化人口。校园内XRD系统的可用性将使UNH的教师能够建立伙伴关系，并加强与附近机构（如耶鲁英国美术馆和纽黑文矿物俱乐部）教师的现有合作。UNH主要是一个本科院校，该仪器也将提供给教师用于实验室课程。获得多用途XRD系统，具有小角X射线散射（SAXS）和X射线反射率测量的能力，将对纽黑文大学教师和学生的学术活动产生重大影响。XRD将能够分析用于粉末XRD测量的标准Bragg Brentano几何形状以及平行光束模式的样品，这将使薄膜研究所需的X射线反射率测量成为可能。此外，该仪器还将配备一个SAXS附件，用于研究固体或溶液形式的小颗粒。拟议的研究项目涵盖广泛的科学和工程学科。这些项目包括：1）电纺和介孔氧化物在分离、化学传感和催化中的应用研究（化学），2）纳米材料的表征，例如CVD-石墨烯和可调热界面材料（电气工程），3）用于药物递送的聚合物纳米珠的粒度测量（化学），4）绿色催化剂的晶体结构测定（化学），5）通过表面吸附催化剂的结构和形态确定阿特拉津在水中的脱氯机理（环境工程），6）确定用于处理有机污染物的原位化学氧化过程导致的土壤矿物成分变化（环境工程，7）医疗器械的蛋白质污染研究8）汽车漆芯片样品衍射图谱库的构建（Forensic Science），和9）收集矿物样品的粉末衍射测量，目的是与拉曼光谱测量交叉参考（Environmental Science）。本科生和研究生，通过他们在这些研究项目之一的参与，将获得一个独特的，专门的研究培训，先进的仪器通常不提供类似规模的机构。