Development of X-ray Atlas, a high-brilliance high-sensitivity high-load-capacity X-ray diffractometer for mineralogy and mineral physics research at the University of Hawaii

夏威夷大学开发 X 射线 Atlas，这是一种高亮度、高灵敏度、高负载能力的 X 射线衍射仪，用于矿物学和矿物物理研究

• 批准号: 1541516
• 负责人: Przemyslaw Dera
• 金额: $ 59.99万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-04-15 至 2020-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1541516&HistoricalAwards=false
• 关键词: Development; ray; Atlas; brilliance; sensitivity

Experiments that allow probing the structure, behavior and properties of Earth forming minerals at extreme pressure and temperature conditions representative of the Earth deep interior are one of primary sources of information about the inner workings of our planet, indispensable in creating reliable geophysical models used e.g. to predict earthquakes. X-ray diffraction based experiments play a special role in mineral physics, being the only reliable source of information about changes in the crystal structure and bonding that take place at depths. Within this project we will develop X-ray Atlas, a new generation of instrument optimized for innovative, laboratory-based diffraction experiments with tiny mineral fragment samples at extreme pressures and temperatures. X-ray Atlas will also provide the much needed and currently non-existent experimental capabilities for the mineral physics lab at the University of Hawaii, and will be a valuable resource to a large number of geology-focused faculty and students on campus. X-ray Atlas will be capable of exploring pressure and temperature conditions relevant for the Earth upper mantle, transition zone and some of the lower mantle (up to 50 GPa and 1000o C, corresponding to depths greater than 1000 km). The new instrument will consist of commercial X-ray diffractometer, Bruker D8 Venture as a base platform. The Venture diffractometer will retain its original full functionality after the planned modification, but a range of new unique capabilities will be added by integrating a parallel kinematics hexapod robotic device as an alternative sample mounting platform for high pressure diamond anvil cells and thin sections. In addition to the hexapod, we will incorporate a fiber optics transport to the sample viewing system of the Venture diffractometer, which will enable collection of ruby fluorescence and Raman signal using an existing standalone Princeton Instruments spectroscopy system, while the sample is mounted on the diffractometer. Through development of the X-ray Altas we will create new and very exciting opportunities for lab-based mineralogy, petrology and mineral physics undergraduate and graduate education at the University of Hawaii, create a personnel training and new technology and software prototyping site for mineral physics and deliver novel, unique, robust and custom-designed technology that will be transferred to other university mineral physics research labs, and will be marketed by a commercial instrument vendor.

允许在极端压力和温度条件下代表地球深层内部的地球形成矿物的结构，行为和特性的实验是有关我们星球内部工作的主要信息之一，在创建可靠的地球物理模型中必不可少的信息来源，例如。预测地震。基于X射线衍射的实验在矿物质物理学中起着特殊的作用，这是有关晶体结构变化和深度粘合的唯一可靠的信息来源。在该项目中，我们将开发X射线图集，这是一种新一代的仪器，可针对具有极高压力和温度下的微小矿物碎片样品进行创新的，基于实验室的衍射实验。 X射线图集还将为夏威夷大学的矿物质实验室提供急需的，目前不存在的实验能力，并将成为大量以地质学专注的教师和校园学生的宝贵资源。 X射线地图集将能够探索与地球上地幔，过渡区和某些下层（最高50 GPA和100​​0o C）相关的压力和温度条件，对应于大于1000公里的深度）。新仪器将由商业X射线衍射仪，Bruker D8 Venture作为基本平台组成。该风险衍射仪将在计划的修改后保留其原始的完整功能，但是通过将平行的运动学六角形机器人设备集成为高压钻石砧室和薄截面的替代样品安装平台，将添加一系列新的独特功能。除Hexapod外，我们还将使用现有的独立Princeton Instruments Spectroscopy System系统合并到风险衍射仪的样品观看系统的光纤传输，该光纤衍射仪可以收集红宝石荧光和拉曼信号，而样品则安装在衍射仪上。通过开发X射线ALTAS，我们将为夏威夷大学的基于实验室的矿物学，质和矿物质物理学本科和研究生教育创造新的，非常令人兴奋的机会，为矿物质物理学以及提供新颖，独特的，独特的，独特的和定制的技术的新技术和软件原型网站创建人事培训，新技术和软件原型网站，这些技术将被转移到其他大学的矿物质研究中，并在其他实验室进行了销售。