X-Ray Optics and Instrumentation / 2010 / Article / Tab 2

Review Article

Thin Shell, Segmented X-Ray Mirrors

Table 2

The foil mirrors being developed for Astro-H.


Diameter (cm)4545
Focal length (m)5.612
Number of shells203213
Number of modules per mirror43
Segment length (cm)1020
Total number of segments16241278
AI Substrate thickness (mm)0.152, 0.229, 0.305 mm0.2 mm
Surface production methodreplicationreplication
Reflective coatinggoldPt/C multilayer
Mass (kg)5680
Effective Area (cm2)510 @ 1 keV800 @ 6 keV
390 @ 7 keV200 @ 40 keV
Angular resolution (arcmin)1.7 (goal <1.3)2 (goal <1. 7)

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