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. 2017 Apr 13;7:46358. doi: 10.1038/srep46358

Table 1. Parameters of the developed advanced KB mirror optics.

  H-Vert. E-Vert. H-Hori. E-Hori.
Vertical imaging Horizontal imaging
Shape Hyperbola Ellipse Hyperbola Ellipse
a (m)* 7.297 × 10−2 22.67 2.051 × 10−2 22.57
b (m)* 1.101 × 10−3 2.444 × 10−2 3.111 × 10−4 1.356 × 10−2
Incident glancing angle (mrad)** 4.67 5.51 4.73 5.51
Distance from object (mm)*** 173 294 49.6 94.1
Mirror area length (mm) 100 120 30 39
Magnification factor 196 637
Numerical aperture ( × 10−3) 1.44 1.51

*Ellipse x2/a2 + y2/b2 = 1 or hyperbola x2/a2 − y2/b2 = 1.

**Averaged over the whole mirror area.

***At the centre of the mirror area.