Techniques for Quality Inspection of Coated Fuel Particles

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概要

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• Various techniques have been developed for the quality inspection of coated fuel particles. The present report summarizes these techniques, which include random sampling of particles by two-stage sampling, measurement of kernel diameter and coating thickness by metallography and X-ray microradiography, determination of den-sity by Hg displacement, <I>m</I>-xylene pycnometry and sink-float technique, determination of the crystallite orientation of pyrolytic carbon, assessment of uranium contamination by α-counting, fluorescence analysis and fission track counting, determination of the C/Si ratio of SiC layer by chlorination, and measurement of the crushing strength of particles. Quality evaluation based on statistical treatment of the data is also described briefly.

• 一般社団法人 日本原子力学会の論文

著者

• Iwamoto Kazumi

  Japan Atomic Energy Research Institute

• IKAWA Katsuichi

  Japan Atomic Energy Research Institute

関連論文

• Diffusion and Evaporation of Fission Products in Coated Fuel Particles
• The Behavior of Fission Products Captured in Graphite Powder by Nuclear Recoil. V. Effect of Fission Fragment Damage on the Diffusion of the Fission Product Xenon
• Techniques for Quality Inspection of Coated Fuel Particles
• Failure of coated fuel particles during thermal excursion above 2,000.DEG.C.
• Dependence of Strontium Diffusion in Graphite on Diffusant Concentration
• Thermal Decomposition of Uranyl Nitrate Hexahydrate in the Presence of Graphite
• Analysis of Fission Gas Escape from Reactor Fuel during Isothermal Irradiation
• The Behavior of Iodine in Adsorption and Desorption by Graphite
• Detection of failed coated particles in HTGR fuels by acid leaching.
• Uranium contamination in coating and in matrix material of unirradiated coated particle fuel.

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