MRI: Acquisition of High Power and Resolution X-ray Microscopy System for Advanced Characterization, Non-Destructive Evaluation, and Cross-Disciplinary Research & Innovation

MRI：采购高功率和分辨率 X 射线显微镜系统，用于高级表征、无损评估和跨学科研究

• 批准号: 2216175
• 负责人: Antonios Zavaliangos
• 金额: $ 122.8万
• 依托单位: Drexel University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2216175&HistoricalAwards=false
• 关键词: MRI; Acquisition; Power; Resolution; ray

This Major Research Instrumentation (MRI) award supports the acquisition of a state-of-the-art, high-resolution X-ray computed tomography instrument. This will enable a broad spectrum of research relying on accurate three-dimensional digitization and characterization of the internal structure of materials. Research projects utilizing this instrument involve novel additive manufactured materials critical for aerospace, automotive, defense and medical applications; cell structures and tissues used in immune system, tissue repair and bioengineering research; pharmaceutical materials; materials for energy applications including novel batteries and energy storage devices; as well as natural materials and organisms used in climate and earth sciences research. Similar to medical CAT Scans, X-ray computed tomography technology provides unprecedented capabilities for research, training, education, outreach and recruitment in STEM. It will promote regional and national collaborations with other universities and industry, while further enabling extensions to emerging technologies such as Industry 4.0. The instrument will be housed in and managed by the Materials Characterization Core, an established multiuser facility at Drexel University. This facility will be leveraged in recruiting events as well as outreach programs to increase the exposure of underrepresented minority students to cutting-edge research.The proposed system offers: (a) submicron true spatial resolution and nanometer-sized voxels achieved by industry-leading dual stage magnification optics, (b) contrast enhancement enabled by detectors that are optimized to maximize data collection of contrast forming low energy X-ray photons, (c) the ability to evaluate larger specimens at high resolution using an associated extension and the included data-processing software, (d) an X-ray source with voltage and power output suitable for a wide range of materials, and (e) the ability to accommodate an array of in situ testing stages, including mechanical and thermal, without compromising performance. These capabilities that represent the state-of-the-art among all commercial systems available today, will enhance research on non-destructive evaluation, advanced material characterization and digitization of complex geometries. Specifically, there are four research foci that will be enhanced by this acquisition, including: 1) evaluation of the internal geometry at multiple length scales of a range of advanced materials; 2) enhanced property and behavior characterization of novel materials and devices via in situ testing; 3) data-driven computational material modeling assisted by data-processing and machine learning; and 4) digitization of flora and fauna, including delicate, rare and historic (150-year-old collections) specimens.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项主要的研究工具（MRI）奖支持获得最先进的高分辨率X射线计算机断层扫描工具。这将使依靠精确的三维数字化和材料内部结构的特征来实现广泛的研究。利用该工具的研究项目涉及对航空航天，汽车，国防和医疗应用至关重要的新型添加剂制造材料；免疫系统，组织修复和生物工程研究中使用的细胞结构和组织；药物材料；能源应用的材料，包括新型电池和能源存储设备；以及在气候和地球科学研究中使用的天然材料和生物。与医学猫扫描类似，X射线计算机断层扫描技术为STEM的研究，培训，教育，外展和招聘提供了前所未有的功能。它将促进与其他大学和行业的区域和国家合作，同时进一步向新兴技术（例如工业4.0）提供扩展。该仪器将由Drexel University的既定的多源设施材料表征核心（Materiation Corecor Core）进行安装和管理。该设施将利用在招募活动和外展计划中，以增加代表性不足的少数族裔学生对尖端研究的暴露。拟议的系统提供：（a）亚微米的真实空间分辨率和纳米尺寸的体素和通过行业领先的二元阶段放大量的行业范围来启用的型号，（b）对比范围启用的均可促进的量子，（b）对比的范围，（b）对比的构建，（b）构建的范围（b）对比的构建，则可以提高对比的功能，以增强对比的范围。光子，（c）使用相关扩展和随附的数据处理软件以高分辨率评估较大标本的能力，（d）具有适用于多种材料的电压和功率输出的X射线源，以及（e）能够适应一系列现场测试阶段，包括机械和热的效果，而无需构成机械性能。这些代表当今所有商业系统中最先进的功能将增强对复杂几何形状的非破坏性评估，先进的材料表征和数字化的研究。具体而言，此次获取将增强四个研究灶，包括：1）在一系列高级材料的多个长度尺度上评估内部几何形状； 2）通过原位测试增强了新型材料和设备的特性和行为表征； 3）数据驱动的计算材料建模在数据处理和机器学习方面有助于； 4）动植物的数字化，包括精致，稀有和历史性的（150年历史的藏品）标本。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估评估标准来通过评估来支持的。