Cation

D₀

Q, ev

Temperature

Reference

D at 1500˚C

U

4.0 × 10⁻⁷

3.0

1477˚C - 1720˚C

48

1.196 × 10⁻¹⁵

U

5.82 × 10⁻⁵

3.2

1900˚C - 2150˚C

49

4.697 × 10⁻¹⁴

U

2.04 × 10⁻³

3.9

1400˚C - 1650˚C

50

1.689 × 10⁻¹⁴

Gd

5.3 × 10⁻³

5.1

1500˚C - 1703˚C, H₂

51

1.707 × 10⁻¹⁷