Table 1. Optical parameters of the focusing mirrors.

	Vertical focusing mirror	Horizontal focusing mirror
Surface profile	Elliptical cylinder
Substrate material	Quartz
Surface coating	Carbon 25 nm (10 mm width) and non-coated (10 mm width)
Mirror substrate size	600 mm × 50 mm × 50 mm (L × W × H)
Effective mirror area	588 mm × 22 mm (L × W)	581 mm × 21 mm (L × W)
Grazing incidence angle	2.6 mrad
Focal length (m)	5.955	5.365
Semi-major axis (m)	73.8	73.8
Semi-minor axis (mm)	75.8	71.8
Spatial acceptance (mm)	1.53	1.51