TRISO fuel volume fraction and homogeneity: a nondestructive characterization

  • K. V. Vrinda DeviEmail author
  • J. N. Dubey
  • Jyoti Gupta
  • I. H. Shaikh


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.


TRISO Volume fraction Homogeneity Radiography 



The authors express their sincere gratitude to Shri Vivek Bhasin, Associate Director, NFG, BARC for their valuable support. Valuable inputs from Shri P. S. Kutty and Shri D. M. Mohod Retd. Officers, Radiometallurgy division, BARC, are gratefully acknowledged.


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Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • K. V. Vrinda Devi
    • 1
    Email author
  • J. N. Dubey
    • 1
  • Jyoti Gupta
    • 1
  • I. H. Shaikh
    • 1
  1. 1.Radiometallurgy DivisionBhabha Atomic Research CentreMumbaiIndia

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