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NoteRecent progress in the modelling of helium and tritium behaviour in irradiated beryllium pebbles, Fusion Engineering and Design Volume 69, Issues 1–4, September 2003, Pages 455–461
Temperature rangeT /K900 – 1500
Diffusivity coefficientD0 /m2 s-10.0001
Diffusivity activation energyEd /eV1.85
Diffusivity temperature dependence formula$$D = D_0\exp\left(-\frac{E_\mathrm{d}}{k_\mathrm{B}T}\right)$$