Acquisition of a Scanning Electron Microscope

购置新的扫描电子显微镜将大大加强新墨西哥大学(UNM)陨石研究所(IOM)和地球和行星科学系(EPS)的研究基础设施。扫描电子显微镜将被整合到UNM的多学科研究计划中，为校园内的科学界和来自地区和全国的其他大学的用户提供服务。这种新的扫描电子显微镜是一种尖端研究工具，它取代了严重过时的1997年模式的扫描电子显微镜，也将作为地球和行星科学、生物和工程学学生的培训工具。收购SEM将通过正式课程和实践培训支持美国研究生水平的理科学生的教育。因此，收购一家新的扫描电子显微镜支持NSF资助的广泛研究和教育。新墨西哥大学是我国最多元化的主要高等学府之一。墨尔本州立大学是一所少数族裔占多数的机构，并被联邦政府归类为拉美裔服务机构，有很大比例的本科生来自不同的文化背景。因此，EPS部门让本科生参与研究活动的传统由来已久，其中很大一部分人来自代表人数较少的群体和少数族裔，特别是西班牙裔和美洲原住民。获得一种新的扫描电子显微镜(SEM)，并附带能量色散X射线光谱仪(EDS)系统和彩色阴极发光(CL)探测器，将取代新墨西哥州大学的现有系统。所选仪器为TESCAN Vega3和IXRF EDS。Vega3提供了一个很大的舞台和舱室，并带有额外的端口，以供未来增加功能。TESCAN将包括高灵敏度背向散射电子成像和彩色阴极发光选项，以及用于提高分辨率的LaB6喷枪。电子和X射线激发的分析结果相结合，提高了定性和定量分析的整体准确性，并增强了X射线测绘能力。此次收购背后的理由是，我们在新墨西哥大学拥有一个多方面的、活跃的、富有成效的和动态的研究项目，此次收购将极大地增强这一项目。我们在扫描电子显微镜和电子探针的使用和管理方面有着广泛的记录，在允许科学界访问我们的实验室方面也有很长的历史。

The acquisition of a new scanning electron microscope (SEM) will provide a major enhancement to the research infrastructure of the Institute of Meteoritics (IOM) and the Department of Earth and Planetary Sciences (EPS) at the University of New Mexico (UNM). The SEM will be integrated into the multidisciplinary research programs at UNM that serve the science community on campus and users from other universities -- both regional and nationwide. This new SEM, a cutting-edge research tool, which replaces a seriously outdated 1997-model SEM, will also serve as a training tool for students in earth and planetary sciences, biology and engineering. The SEM acquisition will support the education of graduate-level US science students through formal classes and hands-on training. Thus, the acquisition of a new SEM supports a broad spectrum of NSF funded research and education. The University of New Mexico is one of the most diverse major institutions of higher learning in our country. UNM is a majority-minority institution and federally classified Hispanic-serving institution with a large proportion of undergraduates from culturally diverse backgrounds. Accordingly, the EPS department has a long tradition of involving undergraduates in research activities and a significant proportion of these individuals are from underrepresented groups and minorities, in particular Hispanic and Native American.Acquisition of a new scanning electron microscope (SEM) with attached energy dispersive X-ray spectrometer (EDS) system and color cathodoluminescence (CL) detector will replace the present system at UNM. The instrument selected is a TESCAN Vega3 and an IXRF EDS. The Vega3 provides a large stage and chamber with additional ports for future added capabilities. High sensitivity backscattered electron imaging and color cathodoluminescence options will be included with the TESCAN, along with a LaB6 gun for improved resolution. The combination of analytical results of electron and X-ray excitation improves the overall accuracy of qualitative and quantitative analysis and enhances X-ray mapping capabilities. The rationale behind this acquisition is that we have a multi-faceted, active, productive, and dynamic research program at the University of New Mexico that will be greatly enhanced by this acquisition. We have an extensive track record for SEM and EPMA use and management, and a long history for allowing access to our labs to the scientific community.