Absorbing layers

To enable or disable the use of absorbing layers use the following controls:

The 'No absorbing layers' button

Disables the use of absorbing layers. This button provides a convenient way to remove the effects of the absorbing material layers in a simulation.
The 'Use absorbing layers' button

Enables the use of absorbing layers. The layers can now be added, removed and edited via futher controls.

To add, remove and edit the absorbing layers use the following controls:

The layers table

Use this table to select the absorbing layer to edit. When a layer is selected its properties are then shown in the layer densitythickness and thickness fluctuation fields. The layer material is displayed in the layer element composition table and the layer can be removed with the delete layer button.
The 'add layer' button

This button adds an absorbing layer to the layers table. The layer will initially have thickness of 1 um, density of 1 g/cm and elemental composition of hydrogen. The layer can now be selected in the layers table and its properties edited.
The 'delete layer' button

This button deletes the layer currently selected in the layers table. The deleted layer is then lost and won't be considered in the simulation.
The layer density field

This field lets you specify the density of the material the currently selected layer is composed of.
The layer thickness field
This field lets you specify the thickness of  the currently selected layer.          
The layer thickness fluctuations field

This field lets you specify fluctuations in the thickness of the currently selected layer. The fluctuatioins are specified in absolute units.
'Layer element composition' table

This table displays the elemental composition of the currently selected layer. By clicking on the white portion of table you will be able to edit the material. See editing materials with the material editor.