SBIR Phase I: Nondestructive Evaluation for Seismic Damage Assessments Using Real-Time X-Ray and Gamma-Ray Imaging System

快速有效的室内和现场结构损伤无损评估对地震研究具有重要意义。提出了一种利用CSL高灵敏度、直接光子电子转换x射线或伽马射线成像系统的概念设计，以研究一种新的实时无损结构损伤测量技术。这项新技术是开发一种x射线或伽马射线图像检测和处理系统，直接可视化和量化结构损伤，包括损伤位置、损伤模式和尺寸。通过这种快速响应的x射线或伽马射线探测器和相关系统，还可以对地震破坏过程进行实时评估。该系统既可用于实验室，也可用于现场。在拟议的第一阶段工作中，CSL将与纽约州立大学布法罗分校的国家地震工程研究中心合作，进行一系列实验，量化系统的主要设计参数，以证明这项新技术的实用性。这项研究将产生一种便携、有效、低成本和易于使用的x射线或伽马射线检测系统，用于结构损伤评估。该系统将有利于实验室和现场工作，并显著降低震害评估的成本。提出的研究将有助于更好地了解地震造成的结构破坏。这项技术一旦发展起来，将为实验室研究和实地检查、监测和测量地震损害提供一个非常有用的工具。所提出的实时、无失真、高时空、便携式x射线和伽马射线系统也将有助于为公共结构、公用事业和部件生产的检查和监测创造商机。

9560332 Cao Quick and effective laboratory and field nondestructive evaluation of structural damage is important for earthquake studies. A conceptual design using the CSL high sensitivity, direct photon-electron conversion x-ray or gamma-ray image system is proposed to investigate a novel real-time nondestructive structural damage measurement technique. This new technique is to develop an x-ray or gamma-ray image detecting and processing system to directly visualize and quantify the structural damage, including damage location, damage pattern and sizes. A real-time assessment of the earthquake damaging process is also possible to be monitored by this fast respond x-ray or gamma-ray detector and the associated system. The proposed system can be used either in the Laboratory or in the field. During the proposed Phase I effort, CSL will work together with the National Center for Earthquake Engineering Research at Suny Buffalo to conduct a series of experiments to quantify the major design parameters of the system to prove the practicality of this novel technique. This research shall result in a portable, effective, low cost and easy to use x-ray or gamma-ray inspection system for structural damage assessment. This system will benefit both laboratory and field work, and reduce the cost of earthquake damage assessment significantly. The proposed research would lead to better understanding of structural damages caused by earthquake. The technique, once developed, offers a very useful tool for laboratory studies and field inspection, monitoring and measurement of earthquake damages. The proposed real-time, nondistortion, high spatial/temporal, and portable x-ray and gamma-ray system shall also help generate business opportunities for inspection and monitoring of public structures, utilities and component production.