Table 1. α Dose Accumulated in AmVO₃ and AmVO₄ at the Time of the Different Measurements, in α Decay Events per Gram of Material.

	AmVO3		AmVO4
	sample age, days	cumulated dose, α/g	sample age, days	cumulated dose, α/g
XRD	1.6	1.2 × 1016	2.7	2.1 × 1016
	132	1.0 × 1018	131	1.0 × 1018
	212	1.6 × 1018	211	1.6 × 1018
TGA	3.4	2.7 × 1016	2.5	1.9 × 1016
Raman	451	3.5 × 1018	450	3.5 × 1018
	890	6.8 × 1018	890	6.8 × 1018
SEM	660	5.1 × 1018	659	5.1 × 1018
Am L3 edge XANES, Am M5 edge HR-XANES	603	4.7 × 1018	607	4.7 × 1018
V XANES	726	5.6 × 1018	727	5.6 × 1018