Table 1. Terms in the denominators of equations (3) and (4) for α/θ = 0.1°/20°^† .

Energies (eV)	μtot(E) (cm−1)	(cm−1)
In K-edge + 50	126.6
In Kα (24120)		40.6	0.0016
Ga Kα (9241)		460.0	0.0185

^† Table S3 for GaAs.