Self-Diffusion in Solid Krypton

Abstract

Tracer diffusion in solid krypton has been measured in the temperature range $90\ifmmode^\circ\else\textdegree\fi{}<T<115\ifmmode^\circ\else\textdegree\fi{}$K by means of an isotopic exchange technique. The diffusion parameters obtained are in reasonable accord with values estimated from data for other rare-gas solids through the principle of corresponding states. The addition of a small amount of ${\mathrm{O}}_{2}$ (\ensuremath{\sim}0.4%) appears to depress the diffusion of the krypton.