Facility Support: Refurbishing the High-Resolution X-ray Computed Tomography Laboratory Principal Instrument

设施支持：翻新高分辨率 X 射线计算机断层扫描实验室主要仪器

• 批准号: 1160721
• 负责人: Richard Ketcham
• 金额: $ 31万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1160721&HistoricalAwards=false
• 关键词: Facility; Support; Refurbishing; Resolution; ray

This grant provides for the first of two stages that will refurbish the principal instrument at the University of Texas High-Resolution X-ray Computed Tomography Facility (UTCT). It will replace the 9-inch image intensifier area detector and 1024x1024 CCD camera currently used for up to 225 keV microfocal scanning with a 16-inch 2048x2048 pixel amorphous silica flat panel enabling distortion-free imagery over the full range of X-ray energies available from our sources (~50-450 keV). It will also include a new high-speed, high-capacity turntable gantry and computer system, which together will allow rapid data acquisition and cone-beam reconstruction, in addition to superior data resolution. These enhancements will lead to lower scanning costs and expanded research possibilities, including ?4D? imaging in which volumes are imaged in time series. The grant will also help fund the engineering design work required to complete the transformation of our instrument into a cutting-edge CT scanner matching or exceeding the capabilities of other mass-produced scanners sold today.X-ray computed tomography is a completely nondestructive means of examining the interiors of opaque solid objects. X-ray CT produces sets of two-dimensional images ('slices') that reveal features in the interior of a specimen as if it had been sliced open along the image plane for viewing. CT technology was originally developed for medical diagnosis, and subsequently adapted to industrial and scientific applications by employing X-ray sources of greater energy and/or superior focus, and by increasing the spatial resolution of the X-ray detectors. Since 1999, UTCT has operated as an NSF multi-user facility, making this technology, and the expertise necessary to exploit it, easily accessible to the national geoscientific community. UTCT has also been utilized by a wide range of other disciplines, including biology, anthropology, and civil, mechanical, and chemical engineering, in both academia and industry. The improvements begun in this project will fully modernize our principal scanner, while also placing UTCT on much firmer ground in terms of serviceability and future upgrades, enabling it to continue in its national mission.

该赠款规定了两个阶段的第一个阶段，这些阶段将在德克萨斯大学高分辨率X射线计算机断层扫描设施（UTCT）上翻新主要工具。 它将替换9英寸的图像增强器区域检测器和1024x1024 CCD摄像头，目前使用16英寸的2048x2048 Pixel Amorphous Silica平面面板，可在整个X射线范围内使用16英寸的2048x2048 Amorphos Silica平板，可用于225 KEV微焦点扫描来自我们的来源（〜50-450 KEV）。 它还将包括一个新的高容量转盘龙门和计算机系统，除了出色的数据分辨率外，还将允许快速数据获取和锥形束重建。 这些增强能力将导致较低的扫描成本和扩大的研究可能性，包括4D？在时间序列中成像的成像成像。 该赠款还将帮助资助完成我们乐器转换为最先进的CT扫描仪匹配或超过今天出售的其他批量生产扫描仪的功能所需的工程设计工作。X射线计算机断层扫描是一种完全不破坏性的手段。检查不透明固体物体的内部。 X射线CT会产生一组二维图像（“切片”）的集合，这些图像在样品的内部揭示了特征，就好像它沿着图像平面打开了，以查看。 CT技术最初是为医学诊断而开发的，随后通过采用更大的能量和/或优越焦点的X射线来源以及增加X射线检测器的空间分辨率来适应工业和科学应用。 自1999年以来，UTCT一直是NSF多用户设施，使这项技术以及利用它所需的专业知识易于使用国家地球科学社区。 在学术界和工业中，包括生物学，人类学以及民用，机械和化学工程，包括生物学，人类学以及民用，机械和化学工程，也已使用UTCT使用。 该项目开始的改进将使我们的主要扫描仪完全现代化，同时在可服务性和未来升级方面也将UTCT置于更牢固的基础上，从而使其能够继续其国家任务。