Development of a High Resolution X-Ray Analyzer for Transition Metal Oxide Research and Education

开发用于过渡金属氧化物研究和教育的高分辨率 X 射线分析仪

• 批准号: 0216858
• 负责人: Trevor Tyson
• 金额: $ 30万
• 依托单位: New Jersey Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216858&HistoricalAwards=false
• 关键词: Development; Resolution; Ray; Analyzer; Transition

Synchrotron based high resolution x-ray emission spectroscopy has developed into a powerful approach to probe the metal site valence and spin polarized charge density in transition metal oxide systems. In addition, it can be used to obtain light-element x-ray absorption spectra (such as carbon) with bulk sensitivity. However, this approach has been limited to specialists because of the lack of dedicated systems. With this award from the Instrumentation for Materials Research program and the Major Research Instrumentation program scientists at New Jersey Institute of Technology (NJIT) will develop a high resolution x-ray analyzer which will be stationed at the National Synchrotron Light Source in Brookhaven National Laboratory. Optimizing the instrument for thin films will makes it, in general, useful for chemical characterization of dilute systems. The instrument will be stationed the at the National Synchrotron Light Source and will be available to a broad range of users in fields as diverse of chemistry, biology, geology and physics. At all levels of the construction and research conducted with this analyzer graduate students will be involved. The instrument will be incorporated in graduate and undergraduate laboratory courses. In addition, the instrument will be utilized as a chemical analysis tool in a transition metal oxide preparation and characterization workshop for Newark area high school students conducted at the NJIT. This will serve to develop scientific literacy and to directly influence students from underrepresented groups to pursue careers in science.High-resolution x-ray emission spectroscopy based at electron storage rings at national laboratories has developed into a powerful tool to examine the chemistry of metal atoms. This tool can be applied to study the valence of metal sites in protein molecules in order to understand their function. In addition, this approach can be used to study light atom such as carbon without the need for a high vacuum system. However, its use has been limited to specialists because of the lack of dedicated systems. With this award from the Instrumentation for Materials Research program and the Major Research Instrumentation program scientists at the New Jersey Institute of Technology (NJIT) will develop a high resolution x-ray analyzer which will be stationed at the National Synchrotron Light Source (NSLS) in Brookhaven National Laboratory. Stationing the system at the NSLS will make the system available to a broad range of users in fields as diverse of chemistry, biology, geology and physics. At all levels of the construction and research conducted with this analyzer graduate students will be involved. The proposed instrument will have a broad impact through the education of graduate and undergraduate students based on its use in laboratory courses. In addition, the instrument will be utilized as a chemical analysis tool in a transition metal oxide preparation and characterization workshop for Newark area high school students conducted at the NJIT. This will serve to develop scientific literacy and to directly influence students from underrepresented groups to pursue careers in science.

基于同步加速器的高分辨率X射线发射光谱已发展为一种强大的方法，用于探测过渡金属氧化物系统中的金属位点价和自旋极化电荷密度。 另外，它可用于获得具有散装灵敏度的光元素X射线吸收光谱（例如碳）。 但是，由于缺乏专用系统，这种方法仅限于专家。 通过材料研究计划的奖项和新泽西理工学院（NJIT）的主要研究仪器计划科学家将开发高分辨率的X射线分析仪，该分析仪将驻扎在布鲁克哈文国家实验室的国家同步物光源。优化薄膜的仪器将使它通常可用于稀释系统的化学表征。 该仪器将驻扎在国家同步加速器的光源上，并将在化学，生物学，地质和物理学多样化的领域中提供广泛的用户。在该分析仪研究生进行的所有级别的建设和研究中，都将参与其中。 该仪器将纳入研究生和本科实验室课程。此外，该仪器将用于在NJIT进行的纽瓦克地区高中生的过渡金属氧化物制备和表征研讨会中用作化学分析工具。 这将有助于发展科学素养，并直接影响代表性不足的群体的学生从事科学职业。基于国家实验室的电子存储环的高分辨率X射线发射光谱已发展为一种强大的工具来检查金属原子的化学性质。 该工具可用于研究蛋白质分子中金属位点的价，以了解其功能。 此外，这种方法可用于研究轻原子，例如碳，而无需高真空系统。 但是，由于缺乏专用系统，它的使用仅限于专家。借助《材料研究计划》和新泽西理工学院（NJIT）的主要研究仪器计划科学家的奖项，将开发高分辨率X射线分析仪，该分析仪将驻扎在布鲁克哈文国家实验室的国家同步灯泡光源（NSLS）。 将系统驻扎在NSLS中，将使该系统可用于化学，生物学，地质和物理学的多样化领域的广泛用户。在该分析仪研究生进行的所有级别的建设和研究中，都将参与其中。 该拟议的工具将根据研究生和本科生在实验室课程中的使用，从而产生广泛的影响。 此外，该仪器将用于在NJIT进行的纽瓦克地区高中生的过渡金属氧化物制备和表征研讨会中用作化学分析工具。 这将有助于发展科学素养，并直接影响代表性不足的群体的学生从事科学职业。