Full DWBA thin film implementation

[tifuchs]

Distorted-wave Born approximation

• DWBA enables fitting of the small-angle reflectivity exactly - important for electrolyte-electrode interface.
• Better treatment of the absorption in the material, but no extinction at Laue points - that would require dynamical theory.
• Refraction effects at low angles

Pretty nice, isn't it?

Now covers Small-angle range as well as the extended CTR range.

Implementation

• Graded interface model
• First implementation will handle UnitCell-based structures (SurfaceModel, EpitaxyInterface, Film, bulk unit cells)
• WaterModel will follow later