Upgrade of the University of Kentucky ARL SEMQ Electron Probe Microanalyzer

该提案寻求资金来升级肯塔基大学现有的应用研究实验室SEMQ电子显微探针。要求的升级包括更换波束形成和成像电子设备的组件，购买组件以提高成像能力，增强定性和定量分析，以及升级计算机软件和硬件。由于仪器问题，需要进行电子设备升级。它的年龄和最近相当长的停机时间。翻新的部件将从制造商处采购。为了提高成像能力，需要一个阴极发光（CL）探测器和一个OV98多层晶体进行波长色散分析。采用珀尔梯冷却的新型EDS成像系统将为新型探测器提供分析灵活性。新的软件/硬件将包括从Windows版Probe升级到企业版，以及一台容纳DAQ板和运行软件的新计算机。仪器升级将用于正在进行的NSF ear资助和其他研究项目。主要目标包括：1)锆石和单氮石地质年代学——CL成像将是阐明成分信息的关键组成部分，而自动化阶段定位ED光谱分析将促进地质年代学重建；2)使用可视化功能进行石榴石和其他硅酸盐分区分析——热气压测量、地质年代学和构造分析将使用x射线作图进行评估；4)古地震活动性和岩石成因-伪岩酸盐（PST）分析，以评估地层温度和流体状态；5)煤和页岩地球化学和矿物学-煤和黑色页岩中的WDS和EDS评估有机和无机组分；疯牛病和能谱分析考古文物，以表征他们的起源和用途。电流探针有四个波长色散光谱仪，一个BSE和一个EDS。新的CL探测器和晶体将被纳入现有的仪器配置，并由拟议的软件升级支持。仪器被安置在一个现代化的，有能力的设施，有充分的服务。部门资金用于气体和液氮。仪器维修由PI和研究生完成。服务合同由大学资助。自愿使用时收取使用费。* * *

0824714MoecherThis proposal seeks funding to upgrade the existing Applied Research Laboratories SEMQ electron microprobe at the University of Kentucky. Requested upgrades include replacing components of the beam-forming and imaging electronics, purchasing components to improve the imaging capabilities and enhance qualitative and quantitative analyses, and upgrading computer software and hardware. Electronics upgrades are sought due to the instrument?s age and considerable recent down-time. Refurbished components will be sourced from the manufacturer. To improve imaging capabilities, a cathodoluminescence (CL) detector is requested along with an OV98 multilayer crystal for wavelength dispersive analysis. A new EDS imaging system with Peltier cooling will provide analytical flexibility for the new detectors. New software/hardware will consist of upgrades to Probe for Windows to Enterprise edition and a new computer to hold DAQ boards and run software. The instrumentation upgrade will be employed for on-going NSF EAR-funded and other research projects. Major objectives include: 1) zircon and monazite geochronology - CL imaging will be a key component for elucidating compositional information, while automated stage positioned ED spectral analysis will facilitate geochronologic reconstructions, 2) garnet and other silicate zoning analysis using visualization capabilities - thermobarometry, geochronology and structural analysis will be assessed using X-ray mapping, 3) decompression microstructures - retrograde eclogites, high-pressure granulites, and their inclusions will be used to better understand the burial and exhumation history of Paleozoic collision orogenesis, 4) Paleoseismicity and petrogenesis - pseudotachylyte (PST) will be assayed in order to assess formation temperatures and fluid states, 5) coal and shale geochemistry and mineralogy - organic and inorganic components will be evalued using WDS and EDS in coals and black shales, and 6) SE, BSE and EDS analysis of archeological artifacts in order to characterize their origins and uses. The current probe has four wavelength dispersive spectrometers, a BSE, and an EDS. The new CL detector and crystal will be incorporated into the existing instrument configuration and supported by the proposed software upgrade. The instrument is housed in a modern, capable facility with ample services. Departmental funds are used for gases and liquid nitrogen. Instrument service is performed by the PI and graduate students. A service contract is funded by the University. Usage fees are collected when volunteered. ***