GeoSoilEnviroCARS: A National Resource for Earth, Planetary and Environmental Science Research At the Advanced Photon Source

0217473 RiversGeoSoilEnviroCARS（GSECARS）是一个国家用户设施，用于在阿贡国家实验室的高级光子源使用同步辐射进行地球科学前沿研究。 GSECARS为地球科学家提供了从第三代同步加速器光源获得高亮度硬X射线的机会。 在该设施进行的研究正在推进我们对地球物质的组成，结构和性质，它们控制的过程以及产生它们的过程的认识。 地球科学家所需的所有主要同步加速器分析技术都用于解决地球科学问题：（1）使用金刚石压砧的高压/高温晶体学和光谱学;（2）使用大体积压力机的高压/高温晶体学;（3）粉末、单晶和界面衍射;（4）非弹性X射线散射;（5）X射线吸收精细结构（XAFS）光谱学;（6）X射线荧光微探针分析;和（7）显微断层摄影术。 APS和GSECARS的独特能力使突破性的实验能够在与NSF地球科学计划相关的研究领域进行。 这一项目将为以下方面提供资金：（1）支持GSECARS作为国家用户设施继续运行;（2）通过使波荡器束线上的两个实验站同时运行并完成弯磁束线上的第二个站，大大增加可用的束流时间;（3）开发和安装新的实验仪器，以扩大该设施的能力。将要开发的主要新仪器包括：（1）X射线光学器件和用于波荡器束线上串联操作的屏蔽传输;（2）用于弯曲磁体束线上新的侧站的束线部件和衍射仪器;（3）用于波荡器束线上高能量的单色仪;以及（4）用于多砧压机中变形实验的工具。 我们的使命是提供一个研究环境，让用户在计划和进行实验以及分析数据方面获得专家帮助。 这种协作的操作模式使同步辐射新手能够使用该设施，需要一批高素质的光束线科学家和技术人员。 ***

0217473RiversGeoSoilEnviroCARS (GSECARS) is a national user facility for frontier research in the earth sciences using synchrotron radiation at the Advanced Photon Source, Argonne National Laboratory. GSECARS provides earth scientists with access to the high-brilliance hard x-rays from this third-generation synchrotron light source. The research conducted at this facility is advancing our knowledge of the composition, structure and properties of earth materials, the processes they control, and the processes that produce them. All principal synchrotron-based analytical techniques in demand by earth scientists are being brought to bear on earth science problems: (1) high-pressure/high-temperature crystallography and spectroscopy using the diamond anvil cell; (2) high-pressure/high-temperature crystallography using the large-volume press; (3) powder, single crystal and interface diffraction; (4) inelastic x-ray scattering; (5) x-ray absorption fine structure (XAFS) spectroscopy; (6) x-ray fluorescence microprobe analysis; and (7) microtomography. The unique capabilities of the APS and GSECARS have allowed groundbreaking experiments to be conducted in research areas relevant to the NSF-Earth Science program. This project will provide funds to: (1) to support the continued operation of GSECARS as a national-user facility; (2) to increase significantly the available beamtime by enabling simultaneous operation of the two experimental stations on the undulator beamline and completion of a second station on the bending magnet beamline; and (3) to develop and implement new experimental instrumentation to extend the capabilities of the facility. Major new instrumentation to be developed includes: (1) x-ray optics and shielded transport for tandem operation on the undulator beamline; (2) beamline components and diffraction instrumentation for a new side-station on the bending magnet beamline; (3) a monochromator for use at high-energy on the undulator beamline; and (4) tooling for deformation experiments in the multi-anvil press. Our mission is to provide a research environment where users receive expert assistance in planning and conducting experiments, and in analyzing data. This collaborative mode of operation, which allows the facility to be accessible to synchrotron radiation novices, requires a staff of highly qualified beamline scientists and technical personnel. ***