Acquisition of a Single-Crystal X-ray Diffractometer for Earth and Planetary Materials Research and Education at Northwestern University

西北大学购买单晶 X 射线衍射仪用于地球和行星材料研究和教育

• 批准号: 0948953
• 负责人: Steven Jacobsen
• 金额: $ 17.62万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-11-01 至 2012-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0948953&HistoricalAwards=false
• 关键词: Acquisition; Single; Crystal; ray; Diffractometer

This Instrumentation and Facilities award through the NSF Division of Earth Sciences will support acquisition of a high-precision, single-crystal X-ray diffractometer to carry out topical geomaterials research and education in the Department of Earth and Planetary Sciences (EPS) at Northwestern University. X-ray diffraction allows definitive identification of minerals at the grain-size scale and determination of crystal structures and related physical properties of materials in the crust-mantle system. This instrument will be interfaced with the PI?s unique high-pressure ultrasonic system for basic mineral physics research on thermodynamic equations of state for Earth and planetary materials. The instrument will be installed in the new EPS Integrated Laboratories of Northwestern (EPSILoN), a new interdisciplinary research and graduate training facility with five adjoining laboratories for mineralogy/mineral physics, stable isotope geochemistry, organic geochemistry, and sedimentary and aqueous geochemistry. Basic research in the PI?s laboratory, currently supported by the faculty early career development program (CAREER) seeks to understand the role of water cycling between the crust and mantle from atomic to geophysical scales. New knowledge of the effects of hydration on the structure and elasticity of mantle materials is applied to remote (geophysical) detection of water in the deep mantle. In addition, the instrument will serve broader departmental and regional needs for specialized mineral phase analysis, characterization, and applied laboratory instruction for undergraduate and graduate courses in Earth materials at Northwestern. Research with the proposed diffractometer has broader impacts as the PI engages in technology transfer between high-pressure geosciences and applied materials research.

该仪器和设施奖由 NSF 地球科学部授予，将支持西北大学地球与行星科学系 (EPS) 购买高精度单晶 X 射线衍射仪，以开展专题地质材料研究和教育。 X 射线衍射可以在晶粒尺寸范围内明确识别矿物，并确定壳幔系统中材料的晶体结构和相关物理性质。 该仪器将与 PI 独特的高压超声波系统连接，用于地球和行星材料热力学状态方程的基础矿物物理研究。该仪器将安装在西北大学新的 EPS 综合实验室 (EPSILoN) 中，这是一个新的跨学科研究和研究生培训设施，拥有五个相邻的矿物学/矿物物理、稳定同位素地球化学、有机地球化学以及沉积和水体地球化学实验室。 PI 实验室的基础研究目前由教师早期职业发展计划 (CAREER) 支持，旨在了解从原子到地球物理尺度的地壳和地幔之间水循环的作用。关于水合作用对地幔物质结构和弹性影响的新知识被应用于地幔深处水的远程（地球物理）探测。此外，该仪器还将满足西北大学地球材料本科生和研究生课程的专业矿物相分析、表征和应用实验室指导的更广泛的部门和区域需求。由于 PI 致力于高压地球科学和应用材料研究之间的技术转让，因此使用拟议的衍射仪进行的研究具有更广泛的影响。