Checking the possibility of controlling fuel element by X-ray computerized tomography

International Conference on Innovations in Non-Destructive Testing (SibTest)

Trinh, V.B.^1 ; Zhong, Y.^1 ; Osipov, S.P.^2 ; Batranin, A.V.^2

National Research Tomsk Polytechnic University, Tomsk, Russia^1

Russian-Chinese Laboratory of Radiation Control and Inspection, National Research Tomsk Polytechnic University, Tomsk, Russia^2

关键词: Active material;    Distribution of uraniums;    Internal structure;    Middle layer;    Three dimensional images;    Uranium particles;    Voxel size;    X ray computerized tomography;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/881/1/012011/pdf
DOI  :  10.1088/1742-6596/881/1/012011

来源: IOP

【 摘 要 】

The article considers the possibility of checking fuel elements by X-ray computerized tomography. The checking tasks are based on the detection of particles of active material, evaluation of the heterogeneity of the distribution of uranium salts and the detection of clusters of uranium particles. First of all, scheme of scanning improve the performance and quality of the resulting three-dimensional images of the internal structure is determined. Further, the possibility of detecting clusters of uranium particles having the size of 1 mm3 and measuring the coordinates of clusters of uranium particles in the middle layer with the accuracy of within a voxel size (for the considered experiments of about 80 μm) is experimentally proved in the main part. The problem of estimating the heterogeneity of the distribution of the active material in the middle layer and the detection of particles of active material with a nominal diameter of 0.1 mm in the "blank" is solved.