MRI: Acquisition of an X-Ray Fluorescence (XRF) Vacuum Spectrometer

MRI：获取 X 射线荧光 (XRF) 真空光谱仪

• 批准号: 1827311
• 负责人: Stanley Mertzman
• 金额: $ 25.51万
• 依托单位: Franklin and Marshall College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-10-01 至 2021-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1827311&HistoricalAwards=false
• 关键词: MRI; Acquisition; Ray; Fluorescence; XRF

MRI: Acquisition of an X-Ray Fluorescence (XRF) Vacuum Spectrometer at Franklin & Marshall CollegeThis grant supports the acquisition of a new, state-of-the-art X-ray fluorescence (XRF) vacuum spectrometer at Franklin & Marshall College. X-ray fluorescence (XRF) is an analytical technique that produces a chemical analysis of solid materials. The new XRF will be used to conduct basic geological and chemistry research and undergraduate student training in classes and projects in these subject areas. Suitably trained undergraduates at institutions with XRF instruments can perform accurate and precise chemical analyses of rocks and other solid materials. Undergraduate classes in geology, inorganic chemistry, materials science, and undergraduate research projects, guided by a faculty member, will benefit from incorporating the new XRF in the curriculum.This grant supports the acquisition of a new, state-of-the-art X-ray fluorescence (XRF) vacuum spectrometer at Franklin & Marshall College. XRF instruments measure the major and trace element geochemistry of solid materials, including rocks, to provide the basis for understanding provenance, processes of formation in geological applications and material composition and purity in material science and chemistry applications. The new XRF instrument contains a 4 kW rhodium x-ray tube, which has been designed to conquer the sublimation of tungsten from the cathode to the region around the radiation exit window, thus providing virtually constant output over the entire tube life, coupled with a modern software package that is interfaced with all new electrical XRF components. Continued collaborative work with NASA, Canadian Space Agency, University of Alberta, Kansas State University, University of Winnipeg, University of Addis Ababa and others, will benefit from the much-improved data quality provided by this instrument. In addition to the research applications, the new XRF will be used as a teaching tool in undergraduate classes in geology and chemistry. Geology Department seniors will have access to the instrument for their senior theses on rock samples they collect during their summer field work between junior and senior year. In addition, students from other classes in geology and chemistry will complete independent research projects utilizing the XRF instrument.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

核磁共振成像：在富兰克林和马歇尔学院购买一台X射线荧光(XRF)真空光谱仪这笔赠款支持在富兰克林和马歇尔学院购买一台新的、最先进的X射线荧光(XRF)真空光谱仪。X射线荧光(XRF)是一种对固体材料进行化学分析的分析技术。新的XRF将用于在这些学科领域的课堂和项目中进行基础地质和化学研究以及本科生培训。在拥有XRF仪器的机构中，经过适当培训的本科生可以对岩石和其他固体材料进行准确和精确的化学分析。在一名教师的指导下，地质学、无机化学、材料科学和本科生研究项目的本科生班级将受益于将新的XRF纳入课程。这笔赠款支持在富兰克林和马歇尔学院购买一台新的、最先进的X射线荧光(XRF)真空光谱仪。XRF仪器测量包括岩石在内的固体材料的常量和痕量元素地球化学，为了解地质应用中的来源、形成过程以及材料科学和化学应用中的材料成分和纯度提供基础。新的XRF仪器包含一个4千瓦的Rg x射线管，旨在克服钨从阴极升华到辐射出射窗口周围的区域，从而在整个管的使用寿命内提供几乎不变的输出，再加上一个与所有新的电子XRF组件接口的现代软件包。继续与美国航天局、加拿大航天局、艾伯塔大学、堪萨斯州立大学、温尼伯大学、亚的斯亚贝巴大学和其他机构合作，将受益于该仪器提供的数据质量大大提高。除了研究应用，新的XRF将被用作地质学和化学本科课堂的教学工具。地质系的大四学生将可以使用该仪器，为他们的高级论文，他们收集的暑期野外工作期间在初中和大四的岩石样本。此外，地质学和化学的其他班级的学生将利用XRF仪器完成独立的研究项目。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。