Table 1 Parameters of the two lenses used in this study

From: X-ray focusing with efficient high-NA multilayer Laue lenses

 

Horizontal focusing lens (MLL1)

Vertical focusing lens (MLL2)

Focal length

1.36 mm

2.02 mm

Number of bi-layers

3326

5100

Smallest period

3.90 nm

3.86 nm

Largest period

21.7 nm

15.8 nm

*Smallest 2θ

3.5 mrad

4.8 mrad

*Largest 2θ

19.5 mrad

19.7 mrad

*NA

0.008

0.0074

Lens height

21.8 μm

29.9 μm

Offset from optic axis

5.0 μm

10.0 μm

  1. The parameters labeled with an asterisk (*) depend on photon energy and are given here for 16.3 keV (0.076 nm wavelength). The deflection angle 2θ is twice the Bragg angle given by λ=2d sin θ, where λ is the wavelength and d the layer period.
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