=== Algorithm ===

=== roughness approximation ===

=== Precision ===

=== Scattering Type ===

Calculates either the Intensity from reflection (outgoing beam from top layer) or the Intensity from transmission (outgoing beam from substrate).
To calculate the appropriate transmission in a thin film foil the substrate should be a vacuum layer. 

=== Script execution ===

=== Parallel computing ===

=== Database ===