3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography
A nonuniform distribution of tristructural isotropic (TRISO) particles within a high-temperature gas-cooled reactor (HTGR) pebble may lead to excessive thermal gradients and nonuniform thermal expansion during operation. If the particles are closely clustered, local hotspots may form, leading to exc...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2017/3857075 |
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| _version_ | 1832548518073466880 |
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| author | Gongyi Yu Yi Du Xincheng Xiang Yuan Liu Ziqiang Li Xiangang Wang |
| author_facet | Gongyi Yu Yi Du Xincheng Xiang Yuan Liu Ziqiang Li Xiangang Wang |
| author_sort | Gongyi Yu |
| collection | DOAJ |
| description | A nonuniform distribution of tristructural isotropic (TRISO) particles within a high-temperature gas-cooled reactor (HTGR) pebble may lead to excessive thermal gradients and nonuniform thermal expansion during operation. If the particles are closely clustered, local hotspots may form, leading to excessive stresses on particle layers and an increased probability of particle failure. Although X-ray digital radiography (DR) is currently used to evaluate the TRISO distributions in pebbles, X-ray DR projection images are two-dimensional in nature, which would potentially miss some details for 3D evaluation. This paper proposes a method of 3D visualization and evaluation of the TRISO distribution in HTGR pebbles using cone-beam computed tomography (CBCT): first, a pebble is scanned on our high-resolution CBCT, and 2D cross-sectional images are reconstructed; secondly, all cross-sectional images are restructured to form the 3D model of the pebble; then, volume rendering is applied to segment and display the TRISO particles in 3D for visualization and distribution evaluation. For method validation, several pebbles were scanned and the 3D distributions of the TRISO particles within the pebbles were produced. Experiment results show that the proposed method provides more 3D than DR, which will facilitate pebble fabrication research and production quality control. |
| format | Article |
| id | doaj-art-08cb99bc6c20470997e74cc4994e2683 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-08cb99bc6c20470997e74cc4994e26832025-02-03T06:13:47ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832017-01-01201710.1155/2017/385707538570753D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed TomographyGongyi Yu0Yi Du1Xincheng Xiang2Yuan Liu3Ziqiang Li4Xiangang Wang5Institution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaInstitution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaInstitution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaInstitution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaInstitution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaInstitution of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, ChinaA nonuniform distribution of tristructural isotropic (TRISO) particles within a high-temperature gas-cooled reactor (HTGR) pebble may lead to excessive thermal gradients and nonuniform thermal expansion during operation. If the particles are closely clustered, local hotspots may form, leading to excessive stresses on particle layers and an increased probability of particle failure. Although X-ray digital radiography (DR) is currently used to evaluate the TRISO distributions in pebbles, X-ray DR projection images are two-dimensional in nature, which would potentially miss some details for 3D evaluation. This paper proposes a method of 3D visualization and evaluation of the TRISO distribution in HTGR pebbles using cone-beam computed tomography (CBCT): first, a pebble is scanned on our high-resolution CBCT, and 2D cross-sectional images are reconstructed; secondly, all cross-sectional images are restructured to form the 3D model of the pebble; then, volume rendering is applied to segment and display the TRISO particles in 3D for visualization and distribution evaluation. For method validation, several pebbles were scanned and the 3D distributions of the TRISO particles within the pebbles were produced. Experiment results show that the proposed method provides more 3D than DR, which will facilitate pebble fabrication research and production quality control.http://dx.doi.org/10.1155/2017/3857075 |
| spellingShingle | Gongyi Yu Yi Du Xincheng Xiang Yuan Liu Ziqiang Li Xiangang Wang 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography Science and Technology of Nuclear Installations |
| title | 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography |
| title_full | 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography |
| title_fullStr | 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography |
| title_full_unstemmed | 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography |
| title_short | 3D Nondestructive Visualization and Evaluation of TRISO Particles Distribution in HTGR Fuel Pebbles Using Cone-Beam Computed Tomography |
| title_sort | 3d nondestructive visualization and evaluation of triso particles distribution in htgr fuel pebbles using cone beam computed tomography |
| url | http://dx.doi.org/10.1155/2017/3857075 |
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