Table 4. Lattice Parameter Variation of AmVO3 and AmVO4 under Self-Irradiation.
| a, Å | b, Å | c, Å | V, Å3 | volume variation, % | dose (α/g) | dpaa |
|---|---|---|---|---|---|---|
| AmVO3 (Pbnm, perovskite) | ||||||
| 5.444 | 5.590 | 7.755 | 235.982 | 0.01 × 1018 | 0.0016 | |
| 5.513 | 5.661 | 7.882 | 245.994 | 4.2 | 1.03 × 1018 | 0.158 |
| AmVO4 (I41/amd, zircon) | ||||||
| 7.294 | 7.294 | 6.428 | 341.952 | 0.02 × 1018 | 0.0027 | |
| 7.243 | 7.243 | 6.405 | 335.964 | –1.8 | 1.02 × 1018 | 0.134 |
a
Estimated from the SRIM2013 simulation of displacements produced by an 241Am alpha-decay (i.e., an alpha-particle of 5.486 MeV and a 237Np recoil nucleus of 92 keV) in AmVO3 and AmVO4 yielding dose multiplication factors, d, from dose to displacement per atom of 1700 and 1800, respectively.