Upgrading the Syracuse University Earth Sciences JEOL 6300 SEM

升级雪城大学地球科学 JEOL 6300 SEM

• 批准号: 0447154
• 负责人: Scott Samson
• 金额: $ 12.83万
• 依托单位: Syracuse University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0447154&HistoricalAwards=false
• 关键词: Upgrading; Syracuse; University; Earth; Sciences

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.

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。 该仪器配备有一个能量色散检测器（EDS）和三个波长色散检测器（WDS），共包含六个晶体。升级将包括：（1）WDS系统的完全现代化自动化以及相关的数据简化和分析，这将使该仪器基本上成为电子微探针，并使我们能够进行广泛的原位微束X射线分析;（2）一套新的数码影像系统，包括对快背散射电子及二次电子的直接射束控制成像分辨率为400 x 400，并允许多达16个通道的X射线点图，使我们能够制作详细的高分辨率X射线图，显示石榴石等变质矿物的元素组成，或元素分带，作为独居石等矿物不同年龄域的指标;（3）一种新的EDS系统，用于X射线光谱鉴定成像矿物的元素组成;（4）阴极发光（CL）成像，在现代U-Pb地质年代学实验室中，这已经成为显示锆石内部复杂性的常规方法，如分带、核-过度生长关系、再吸收，以及其他各种内部特征。 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，该设施将提供给我们的学生，我们校园内其他部门的学生，以及纽约中部较小机构的学生。