Table 1. Parameters of the two lenses used in this study.
| 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 |
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.