INFLUENCE OF SIZE AND SURFACE STRUCTURE OF MICROPARTICLES ON ACCURACY OF MEASUREMENTS OF URANIUM ISOTOPIC COMPOSITION

摘要

The paper examines the kinetics of dispersion of micron and submicron uranium particles during measurements of isotopic composition by secondary ion mass spectrometry. One source of possible systematic error was determined. A technique to control accuracy of measurement is suggested. The influence of the initial size of the particle as well as the inner structure of the particle on the speed of particle dispersion is assessed.