PERSONAL DE APOYO
DI LALLA Nicolas
Application of alfa-spectrometry to the study of U diffusion in nuclear reactor materials
R. A. PEREZ, J GORDILLO, N DI LALLA
ELSEVIER SCI LTD
Lugar: Amsterdam; Año: 2012 vol. 45 p. 1836 - 1841
An experimental method used to study U diffusion at infinite dilution in materials is presented in this work. The spectra of α particles emitted by U at different depth in the material, after the diffusion annealing, is converted into diffusion profiles combining the knowledge on the stopping power of α-particles coming from particles accelerators into an algorithm developed here. Details of sample preparation and experimental set-up is given, as much as depth resolution and limits for the diffusion coefficients attainable with this technique. Diffusion of U in Mo and α-Ti are measured at several temperatures in order to check the technique.