Abstract
Indirect neutron imaging is an effective method for nondestructive testing of spent nuclear fuel elements. Considering the difficulty of obtaining experimental data in a high-radiation environment and the characteristic of high noise of neutron images, it is difficult to use the traditional FBP algorithm to recover the complete information of the sample based on the limited projection data. Therefore, it is necessary to develop the sparse-view CT reconstruction algorithm for indirect neutron imaging. In order to improve the quality of the reconstruction image, an iterative reconstruction method combining SIRT, MRP, and WTDM regularization is proposed. The reconstruction results obtained by using the proposed method on simulated data and actual neutron projection data are compared with the results of four other algorithms (FBP, SIRT, SIRT-TV, and SIRT-WTDM). The experimental results show that the SIRT-MWTDM algorithm has great advantages in both objective evaluation index and subjective observation in the reconstruction image of simulated data and neutron projection data.
Highlights
We found that if the parameter λSIRT fluctuates in a small range, the quality of the reconstructed image does not change much
Regularization considers the and eliminate influence of image isolated noise.but regularization considers the sparsitythe constraint of the gradient, considers the continuity constraint of sparsity constraint of which the image gradient, protect and the continuity constraint of the image gradient, can effectively theconsiders gradient information in different of the image
Rections of the we combine Median root prior (MRP) and weighted total difference minimization (WTDM) as the regularization conThe quality of the reconstructed image is often affected by noise in the actual acquired straint of the simultaneous iterative reconstruction technique (SIRT)-MWTDM algorithm
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. With the rapid growth of the world economy, non-renewable resources such as oil, natural gas, and coal are constantly consumed, and the problem of the energy crisis has become more and more obvious [1]. To seek the way of sustainable development, nuclear power plants have become a hotspot of people’s attention in many countries. Nuclear power plants have become one of the most important components of modern energy [2,3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
