Change the object #2 type (currently a Null Object) in the editor to Source Filament object by repeating the previous step and choosing Source Filament in the property window.

We want the Source Filament to be at the focus of the parabolic reflector to collimate the beam. The filament coil has 10 turns with overall length of 20mm and radius of turn of 5mm.

The parameter entered for the Source Filament in the editor should be:

Z position:  50 (focus of the parabolic reflector)
# Layout Rays  20
# Analysis Rays 5000000
Length:  20
Radius   5
Turns   10

Update the 3D layout by clicking Update in the NSC 3D Layout menu.

The layout shows 20 rays emanating from the source filament, as specified in the # Layout Rays parameter.