A Real-Time Saft System Applied to the Ultrasonic Inspection of Nuclear Reactor Components

Study of beamforming techniques for ultrasound imaging in nondestructive testing

“…Wiener filtering and the maximum entropy method (MEM) have been shown to give higher lateral resolution than SAFT processing, as well as a unique improvement in longitudinal resolution. Real-time SAFT systems were also studied on different occasions [44,45], in order to minimize the time it takes for the conventional SAFT to compute an image. Hall and his colleagues [44] deploying SAFT in a commercial environment to achieve rapid imaging, which allows the operator to make timely judgments with respect to specimen integrity, and eventually reducing the costs involved with reactor in-service inspection.…”

“…Real-time SAFT systems were also studied on different occasions [44,45], in order to minimize the time it takes for the conventional SAFT to compute an image. Hall and his colleagues [44] deploying SAFT in a commercial environment to achieve rapid imaging, which allows the operator to make timely judgments with respect to specimen integrity, and eventually reducing the costs involved with reactor in-service inspection. In a similar fashion, Ozaki and his colleagues [45] have devised a new way to implement the SAFT algorithm and have developed a real-time ultrasonic imaging system that provides, for any object size, a crosssectional image of an object without any interruption.…”

SIIA: A knowledge based assistant for the SAFT ultrasonic inspection system

“…SIIA(b) is a knowledge-based system designed to assist in making the operation of the Synthetic Aperture Focussing Technique (SAFT) Ultrasonic Inspection System more reliable and efficient [1]. This paper reports on our effort to develop a prototype version of SIIA to demonstrate the feasibility of using knowledge-based systems in nondestructive evaluation (NDE).…”

Study of beamforming techniques for ultrasound imaging in nondestructive testing

“…Wiener filtering and the maximum entropy method (MEM) have been shown to give higher lateral resolution than SAFT processing, as well as a unique improvement in longitudinal resolution. Real-time SAFT systems were also studied on different occasions [44,45], in order to minimize the time it takes for the conventional SAFT to compute an image. Hall and his colleagues [44] focused their attention on the acceleration of the computationally intensive coherent summation SAFT algorithm.…”

“…Real-time SAFT systems were also studied on different occasions [44,45], in order to minimize the time it takes for the conventional SAFT to compute an image. Hall and his colleagues [44] focused their attention on the acceleration of the computationally intensive coherent summation SAFT algorithm. Their work essentially dealt with successfully deploying SAFT in a commercial environment to achieve rapid imaging, which allows the operator to make timely judgments with respect to specimen integrity, and eventually reducing the costs involved with reactor in-service inspection.…”