Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (3): 41 doi: 10.1007/s41365-019-0573-7

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TRISO fuel volume fraction & homogeneity: A nondestructive characterization

K. V. Vrinda Devi1 • J. N. Dubey1 • Jyoti Gupta1 • I. H. Shaikh1   

  1. 1 Radiometallurgy Division, Bhabha Atomic Research Centre, Mumbai, India
  • Received:2018-08-07 Revised:2018-09-17 Accepted:2018-09-19
  • Contact: K. V. Vrinda Devi E-mail:kvvdevi@barc.gov.in
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K.V.Vrinda Devi, J.N.Dubey, Jyoti Gupta, I.H.Shaikh. TRISO fuel volume fraction & homogeneity: A nondestructive characterization.Nuclear Science and Techniques, 2019, 30(3): 41     doi: 10.1007/s41365-019-0573-7
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Abstract: 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.

Key words: TRISO, Volume fraction, Homogeneity, Radiography