MRI: Development of an XRF Laboratory: Integrating Geology Undergraduate Coursework with Geochemical Research

0115647 Putirka通过主要研究仪器计划获得的这笔赠款为宾夕法尼亚州印第安纳州大学（IUP）的X射线荧光（XRF）实验室的开发提供了部分支持。这笔赠款包括购买飞利浦MagiX Pro x射线荧光光谱仪。新的实验室将是PA西部地区唯一的XRF设施，因此将满足该地区对灵活和精确的化学分析工具的关键需求。特别是，这个实验室将支持广泛的研究活动在IUP，宾夕法尼亚州立大学和匹兹堡大学。由于灵活性的原因，该仪器包括一个He附件，允许分析液体和松散粉末样品，以及一个由Philips开发的新晶体（PX-9），与LiF（200）晶体相比，它将过渡元素和稀土元素的强度增益提高了1.5-1.8倍。这笔赠款还包括用于一系列样品制备设备的资金，包括用于制备玻璃珠的熔炉、坩埚和Claise熔融机，以及用于制备压制粉末颗粒的压机和辅助设备。在IUP的研究活动，将由本次收购的支持包括：1）蛇河平原，爱达荷州内的火山管道系统的调查，并在莫纳克亚火山，夏威夷。 2)从深海岩芯中恢复的陆源沉积物中包含的古气候记录的揭示。3)有机物和无机物的晶体结构和缺陷的解释。4)研究了作为电子器件开发的InAs/InxGa 1-xSb和GaN/Ga xIn 1-x固溶体。这个实验室设施也将提供一个核心组成部分，以课程修订在IUP，旨在实现研究和本科课程的无缝结合。将编制一门新的课程，专门讲授分析方法。我们现有的几门课程（矿物学，地球化学，X射线晶体学，火成岩和变质岩石学）也将进行修订，以纳入有意义的研究内容。IUP现有的普通化学序列也将被修改，使学生在大一/大二水平介绍了XRF分析技术;分析方法将因此在整个本科课程加强。***

0115647PutirkaThis grant, made through the Major Research Instrumentation Program, provides partial support of the costs for development of an x-ray fluorescence (XRF) laboratory at the Indiana University of Pennsylvania (IUP). This grant includes acquisition of a Philips MagiX Pro x-ray fluorescence spectrometer. The new laboratory will represent the only XRF facility in the western PA region, and will thus satisfy a crucial need within the region for a flexible and precise chemical analysis tool. In particular, this laboratory will support a wide range of research activities at IUP, Penn State and the University of Pittsburgh. For reasons of flexibility, this instrument includes a He attachment, which allows for the analysis of liquid and loose powder samples, and a new crystal developed by Philips (PX-9), which increases the intensity gain on transition and rare earth elements by a factor of 1.5-1.8, compared to the LiF (200) crystal. This grant also includes funds for an array of sample preparation equipment, including furnaces, crucibles and a Claise fusion machine for the preparation of glass beads, and a press and ancillary equipment for the preparation of pressed powder pellets. The research activities at IUP that will be supported by this acquisition include: 1) An investigation of the volcanic plumbing systems within the Snake River Plain, Idaho, and at Mauna Kea volcano, Hawaii. 2) An unraveling of the paleoclimate record contained in terrigenous sediments recovered from deep-sea cores. 3) The elucidation of crystal structures and defects of organic and inorganic substances. 4) A study of InAs/InxGa1-xSb and GaN/GaxIn1-x solid solutions, which are being developed as electronic devices. This laboratory facility will also provide a central component to curriculum revisions at IUP that aim toward a seamless incorporation of research and undergraduate coursework. A new course will be developed that will be devoted to the instruction of analytical methods. Several of our existing courses (Mineralogy, Geochemistry, X-ray Crystallography, Igneous and Metamorphic Petrology) will also be revised to incorporate meaningful research components. IUP's existing General Chemistry sequence will also be modified so that students at the freshmen/sophomore level are introduced to XRF analytical techniques; analytical methods will thus be reinforced throughout the undergraduate curriculum. ***