Table 4. Parameters of the gratings installed in the interferometer in end-station 2.

Grating	G1 (25 keV)	G1 (35 keV)	G2
Period	4.92 µm	4.92 µm	5 µm
		4.89 µm at 6.3°
Height	4.39 µm	6.15 µm	>70 µm
Material	Ni	Ni	Au
Type	π/2 phase-shift	π/2 phase-shift	Absorption
Duty cycle	0.5	0.5	0.5
Geometry	70 mm diameter	70 mm diameter	70 mm diameter
Substrate	525 µm Si	525 µm Si	525 µm Si