Equipment Upgrade for Electron Microprobe, University of Houston Department of Earth and Atmospheric Sciences

休斯顿大学地球与大气科学系电子显微镜设备升级

• 批准号: 0949400
• 负责人: Virginia Sisson
• 金额: $ 15.99万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-02-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0949400&HistoricalAwards=false
• 关键词: Equipment; Upgrade; Electron; Microprobe; University

Sisson0949400This award provides $159,861 in NSF funding over 24 months to acquire wavelength and energy dispersion add-ons for an existing electron microprobe (EMP) at the University of Houston. Other upgrades (cathodoluminescence, upgraded crystal monochromator) are also requested to enhance the instrument?s performance. This instrument will be used for cathodoluminescence (CL)-imaging for zircon geochronology; garnet and other silicate zoning analysis using visualization capabilities; thermobarometry, geochronology and structural analysis (using X-ray mapping); phase characterization in relict mineral phases from mantle peridotites and basaltic glasses from the Arctic mid-ocean ridges and elsewhere; and retrograde eclogites, high-pressure jadeitites and their associated rocks from the Motagua suture zone, Guatemala. The instrument will be heavily involved in discovery through education. The facility expects to support over 80 undergraduate students per year, exposing them to modern microbeam materials characterization. The institution serves the minority communities in the East Texas regions, and is the top minority STEM graduate producer in a region. The enhanced microbeam analytical facility will help attract and retain high-quality graduate students, postdoctoral fellows, and junior faculty. The PIs will be responsible for routine maintenance, training and scheduling - through an advisory committee. ***

Sisson0949400该奖项在 24 个月内提供 159,861 美元的 NSF 资金，用于为休斯顿大学现有的电子微探针 (EMP) 购买波长和能量色散附加组件。还需要进行其他升级（阴极发光、升级晶体单色仪）以增强仪器的性能。该仪器将用于锆石地质年代学的阴极发光（CL）成像；使用可视化功能进行石榴石和其他硅酸盐分区分析；热压测量、地质年代学和结构分析（使用 X 射线测绘）；来自北极洋中脊和其他地方的地幔橄榄岩和玄武岩玻璃的残余矿物相的相特征；危地马拉莫塔瓜缝合带的逆行榴辉岩、高压硬玉及其伴生岩石。该工具将大力参与通过教育进行的发现。该设施预计每年为 80 多名本科生提供支持，让他们接触现代微束材料表征。该机构为东德克萨斯地区的少数族裔社区提供服务，并且是该地区顶尖的少数族裔 STEM 毕业生培养者。增强的微束分析设施将有助于吸引和留住高质量的研究生、博士后研究员和初级教师。 PI 将通过咨询委员会负责日常维护、培训和日程安排。 ***