When uranium dioxide fuel is allowed to burn in a reactor core for a period of time, its structure..


When uranium dioxide fuel is allowed to glow in a reactor core for a continuance of age, its edifice fluctuates and a convenient empty may develop in some of the fuel pins. What is this fluctuate in shortsightedness designated, and as a result of it, is the fuel less condensed or past condensed than it was antecedently?