skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Model-Based Iterative Reconstruction for One-Sided Ultrasonic Nondestructive Evaluation

Abstract

One-sided ultrasonic nondestructive evaluation (UNDE) is extensively used to characterize structures that need to be inspected and maintained from defects and flaws that could affect the performance of power plants, such as nuclear power plants. Most UNDE systems send acoustic pulses into the structure of interest, measure the received waveform, and use an algorithm to reconstruct the quantity of interest. The most widely used algorithm in UNDE systems is the synthetic aperture focusing technique (SAFT) because it produces acceptable results in real time. Thus, a few regularized inversion techniques with linear models have been proposed which can improve on SAFT, but they tend to make simplifying assumptions that do not address how to obtain reconstructions from large real datasets. In this paper, we propose a model-based iterative reconstruction (MBIR) algorithm designed for scanning UNDE systems. To further reduce some of the artifacts in the results, we enhance the forward model to account for the transmitted beam profile, the occurrence of direct arrival signals, and the correlation between scans from adjacent regions. Next, we combine the forward model with a spatially variant prior model to account for the attenuation of deeper regions. Moreover, we also present an algorithm to jointly reconstructmore » measurements from large datasets. Finally, using simulated and extensive experimental data, we show MBIR results and demonstrate how we can improve over SAFT as well as existing regularized inversion techniques.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [2]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1502580
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Transactions on Computational Imaging
Additional Journal Information:
Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2573-0436
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Image reconstruction; Acoustics; Data models; Imaging; Attenuation; Transducers; Periodic structures; Nondestructive evaluation (NDE); ultrasound imaging; ultrasound reconstruction; model-based iterative reconstruction (MBIR); regularized iterative inverse; synthetic aperture focusing technique (SAFT)

Citation Formats

Almansouri, Hani, Venkatakrishnan, Singanallur, Bouman, Charles, and Santos-Villalobos, Hector. Model-Based Iterative Reconstruction for One-Sided Ultrasonic Nondestructive Evaluation. United States: N. p., 2018. Web. doi:10.1109/TCI.2018.2883218.
Almansouri, Hani, Venkatakrishnan, Singanallur, Bouman, Charles, & Santos-Villalobos, Hector. Model-Based Iterative Reconstruction for One-Sided Ultrasonic Nondestructive Evaluation. United States. doi:10.1109/TCI.2018.2883218.
Almansouri, Hani, Venkatakrishnan, Singanallur, Bouman, Charles, and Santos-Villalobos, Hector. Thu . "Model-Based Iterative Reconstruction for One-Sided Ultrasonic Nondestructive Evaluation". United States. doi:10.1109/TCI.2018.2883218.
@article{osti_1502580,
title = {Model-Based Iterative Reconstruction for One-Sided Ultrasonic Nondestructive Evaluation},
author = {Almansouri, Hani and Venkatakrishnan, Singanallur and Bouman, Charles and Santos-Villalobos, Hector},
abstractNote = {One-sided ultrasonic nondestructive evaluation (UNDE) is extensively used to characterize structures that need to be inspected and maintained from defects and flaws that could affect the performance of power plants, such as nuclear power plants. Most UNDE systems send acoustic pulses into the structure of interest, measure the received waveform, and use an algorithm to reconstruct the quantity of interest. The most widely used algorithm in UNDE systems is the synthetic aperture focusing technique (SAFT) because it produces acceptable results in real time. Thus, a few regularized inversion techniques with linear models have been proposed which can improve on SAFT, but they tend to make simplifying assumptions that do not address how to obtain reconstructions from large real datasets. In this paper, we propose a model-based iterative reconstruction (MBIR) algorithm designed for scanning UNDE systems. To further reduce some of the artifacts in the results, we enhance the forward model to account for the transmitted beam profile, the occurrence of direct arrival signals, and the correlation between scans from adjacent regions. Next, we combine the forward model with a spatially variant prior model to account for the attenuation of deeper regions. Moreover, we also present an algorithm to jointly reconstruct measurements from large datasets. Finally, using simulated and extensive experimental data, we show MBIR results and demonstrate how we can improve over SAFT as well as existing regularized inversion techniques.},
doi = {10.1109/TCI.2018.2883218},
journal = {IEEE Transactions on Computational Imaging},
issn = {2573-0436},
number = 1,
volume = 5,
place = {United States},
year = {2018},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 29, 2019
Publisher's Version of Record

Save / Share: