Automated X-ray Diffractometer for Undergraduate Instructionand Research

9350939地质学系正在使用飞利浦PW1840自动X射线衍射仪系统，以加强本科课程和本科研究。其目标是将衍射仪的使用整合到利邦理科课程的三个组成部分中：(1)物理地质学基础课程；(2)地质学专业，特别是学生研究项目和该专业的三门必修课(矿物学与结晶学、岩浆岩变质岩学和地层学与沉积学)；以及(3)工程和物理课程(工程材料和凝聚态物理)的实验室练习。地质学初学者使用现代分析X射线设备作为检验矿物和岩石不可或缺的一部分。高级学生正在使用该仪器学习矿物鉴定技术，了解结晶学关系，研究矿物的成分和结构变化，并研究多相系统，如沉积物或细粒火成岩或变质岩。完成要求的课程顺序后，地质学专业的学生必须具备在研究背景下使用衍射仪解决矿物学问题的经验。衍射仪极大地扩展了学生可以从事的研究项目的类型。***

9350939 Freed The Geology Department is using a Philips PW 1840 automated X- ray diffractometer system which to enhance both undergraduate courses and undergraduate research. The goal is to integrate use of the diffractometer into three components of Trinity's science curriculum: (1) the beginning Physical Geology course; (2) the geology major, specifically student research projects and three required sequential courses for the major (Mineralogy & Crystallography, Igneous & Metamorphic Petrology, and Stratigraphy & Sedimentation); and (3) laboratory exercises in engineering and physics classes (Engineering Materials and Condensed Matter Physics). Beginning geology students use modern analytical X-ray equipment as an integral part of examining minerals and rocks. Advanced students are using the instrument to study mineral identification techniques, understand crystallographic relationships, investigate compositional and structural variations in minerals, and work with multiple-phase systems, such as sediments or fine-grained igneous or metamorphic rocks. After completing the required course sequence, geology majors have the experience necessary to use the diffractometer for addressing mineralogical problems in a research context. The diffractometer significantly expands the types of research projects that students can undertake. ***