Upgrading the Syracuse University Earth Sciences JEOL 6300 SEM

EAR-0447154 Samson该奖项为雪佛龙-德士古公司捐赠给锡拉丘兹大学地球科学系的JEOL 6300扫描电子显微镜的重大升级提供资金。该仪器配备了一个能量色散探测器(EDS)和三个波长色散探测器(WDS)，总共包含六个晶体。这次升级将包括(1)WDS系统的完全现代自动化以及相关数据的简化和分析，这将使该仪器基本上成为一个电子微探针，并使我们能够进行广泛的原位微束X射线分析；(2)新的数码成像系统将包括400×400分辨率的快速背向散射电子(BSE)和二次电子(SE)成像的直接光束控制，并允许高达16个通道的X射线点映射，使我们能够制作详细的、高分辨率的变质矿物元素组成的X射线图，或作为独居石等矿物不同年龄区域的指示；。(3)用于X射线光谱识别所成像矿物的元素组成的新EDS系统；以及(4)阴极发光(CL)成像，这在现代U-Pb地质年代学实验室中几乎已经成为例行公事，可以显示锆石的内部复杂性，如分带、核-过度生长关系、再吸收和各种其他内部特征。所要求的升级将为地球科学系提供一个真正现代化的分析设施，供我们的学生、我们校园其他系的学生以及纽约市中心较小机构的学生使用。

EAR-0447154SamsonThis award provides funds for a major upgrade of a JEOL 6300 Scanning Electron Microscope that was donated to the Department of Earth Sciences at Syracuse University by Chevron-Texaco. The instrument is equipped with an energy-dispersive detector (EDS) and three wave-length dispersive detectors (WDS) containing a total of six crystals. The upgrade will include (1) complete modern automation of the WDS system and associated data reduction and analysis, which will make the instrument essentially an electron microprobe and allow us to do a wide range of in situ microbeam X-ray analysis; (2) a new Digital Imaging System that will include direct beam control for fast back-scattered electron (BSE) and secondary electron (SE) imaging at 400 x 400 resolution and allow X-ray dot mapping with up to 16 channels, allowing us to make detailed, high-resolution X-ray maps of the elemental compositions of metamorphic minerals, such as garnet, or element zoning as indicators of different age domains in minerals such as monazite; (3) a new EDS System for X-Ray spectral identification of the elemental compositions of minerals that are imaged; and (4) cathodoluminescence (CL) imaging, that has become virtually routine in modern U-Pb geochronology laboratories in showing the internal complexities of zircon, such as zoning, core-overgrowth relationships, resorption, and a variety of other internal features. The requested upgrade will provide the Department of Earth Sciences with a truly modern analytical facility which will be made available to our students, those of other departments on our campus, and those of smaller institutions in Central New York.