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--- documentation:adaptive_layer_segmentation [2011/11/15 20:10] – created 142.103.140.43
+++ documentation:adaptive_layer_segmentation [2013/04/03 22:21] – external edit 127.0.0.1
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+ == Adaptive Layer Segmentation Model ==
+The model differs between two methods to calculate the transition of the index of refraction between two layers.
+The default is Parratt which means the method used in the Parratt32 software from the HMI.
+The global model is described in the diploma thesis of M. Harlander.
+If the thickness is smaller than σ both models describe the interface almost like the roughness approximation by Nevot&Croce.
+However there are differences for the case σ>thickness. The local model describes the σ>thickness case like the Nevot&Croce approximation.
+The global models should give you physical more feasible results which cannot be modelled by the analytical approximation.