An investigation was made of the release of 133Xe and 133mXe, from neutron-irradiated single crystals, as a function of temperature and neutron dose. The Xe release could be expressed in terms of volume diffusion. The results, for 200 to 550 and a neutron dose of 5.8 x 1016/cm2, could be described by:

D (cm2/s) = 2.0 x 100 exp[-1.14(eV)/kT]

Increasing the neutron dose resulted in a decrease in the diffusion coefficient.

F.W.Felix, K.Meier: Zeitschrift für Naturforschung, 1967, 22a[12], 2075-7

The best linear fits to the solute diffusion data ([407] to [411], [418] to [422]) yield:

Cs: Ln[Do] = 0.60E – 18.3 (R2 = 0.995); Xe: Ln[Do] = 0.32E – 7.8 (R2 = 0.70)