TRISO fuel volume fraction and homogeneity:a nondestructive characterization

作     者：K. V. Vrinda Devi J. N. Dubey Jyoti Gupta I. H. Shaikh 

作者机构：Radiometallurgy DivisionBhabha Atomic Research CentreMumbaiIndia 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2019年第30卷第3期

页      面：46-52页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 

主　　题：TRISO Volume fraction Homogeneity Radiography 

摘      要：A new nondestructive method to estimate the volume fraction and homogeneity of tristructural isotropic(TRISO)-coated fuel particles in fuel compacts designed for high-temperature reactors has been developed using image analysis of conventional X-radiographs. The method is demonstrated on surrogate fuel compacts containing TRISO-coated particles with kernels made of zirconium dioxide. The methodology incorporates a correction for superimposed images of TRISO particles such that a single X-ray image obtained in any one random orientation is sufficient to characterize the fuel compact in terms of volume fraction and homogeneity. The method is based on the virtual segregation of images of each particle inside the compact with the aid of a calibration standard.