X-Ray Optics and Instrumentation / 2010 / Article / Tab 3

Review Article

Thin Shell, Segmented X-Ray Mirrors

Table 3

Multilayer coated foil mirrors.

InFOCμSHEFTSUMITNuSTAR

Diameter (cm)40243638
Focal length (m)86810
Number of shells2557290130
Number of modules per mirror41*31*
Segment length (cm)10 2 × 1 0 1322.5
Total number of segments20407005402340
Substrate materialaluminumglassaluminumglass
Substrate thickness (mm)0.170.30.220.21
Surface production methodreplicationthermal formingreplicationthermal forming
Multilayer coatingPt/CW/SiPt/CPt/C, W/Si
Effective area (cm2)5150@40150
Angular resolution (arcmin)2.71.32.06<60
Year of launch2001, 2004200520062012

*HEFT and NuSTAR mirrors consist of one module, but shells are composed of multiple segments.
**Each reflecting stage consists of a pair of segments.

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