WEB Accessible Single Crystal X-Ray Diffractometer for Undergraduate Instruction at a Consortium of Predominantly Undergraduate Institutions

最近在衍射硬件、理论、软件和计算机方面的进步，使得衍射方法越来越成为许多学科的科学家、工程师和专业人员的日常工作。这也使得像本科生这样的新手越来越容易接触到它们。许多机构的经验表明，这些方法可以有效地整合到各种学科的本科课程中，包括：生物化学、生物学、化学、地质学、物理学、材料科学、工程学和科学教师教育。将衍射更广泛地纳入本科课程的最大障碍之一是缺乏使用合适衍射仪的机会。该项目正在调整和实施几个现有的合作模式，这些模式来自以本科生为主的区域院校（PUIs）和研究仪器网络。该机构已经建立了一个网络可访问的衍射设备，强调单晶方法，但具有一些粉末能力。它致力于在正式课程和本科生研究的本科教学。该设施可以通过WEB完全访问，以便参与PUI的教师和他们的学生能够远程观察和控制衍射仪器，以及访问位于该机构的数据库。为每个家庭站点提供结构解决方案软件，以及为22个参与的pui提供教师培训和课程实施帮助。由于为仪器获取而提出的远程操作模式，该设施对地理位置偏远地区的教师和学生、来自资金不足的机构的人员或因残疾而导致旅行困难的人员特别有用。

Chemistry (12) Recent improvements in diffraction hardware, theory, and software, and in computers have made diffraction methods increasingly routine for scientists, engineers, and professionals in many disciplines. It has also made them increasingly accessible to novices such as undergraduates. Experience at a variety of institutions has shown that these methods can be effectively integrated into the undergraduate curriculum in a wide variety of disciplines, including: biochemistry, biology, chemistry, geology, physics, materials science, engineering, and science teacher education. One of the biggest impediments to integrating diffraction more widely into undergraduate coursework is the lack of hands on access to appropriate diffractometers. This project is adapting and implementing several existing collaborative models from regional Predominantly Undergraduate Institutions (PUIs), and research instrumentation networks. A WEB-accessible diffraction facility that emphasizes single crystal methods but with some powder capabilities has been established at this instituion. It is dedicated to undergraduate instruction in both formal courses and undergraduate research. The facility is fully accessible over the WEB so that participating PUI faculty and their students are able to both observe and control the diffraction instruments remotely as well as access databases located at the institution. Structure solution software for use at each home site is provided as are faculty training and curriculum implementation help for the twenty two participating PUIs. Because of the operation over a distance model proposed for instrument access, this facility is particularly useful to faculty and students in geographically remote regions, to those from less well funded institutions, or to those whose disabilities make travel problematic.