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Using the intensity screen

The energy acceptance plot displays an image of where emitter rays hit the image plane. This is a purely geometrical calculation, and does not take into account energy losses in the lens due to reflections, scattering, or absorption.

To create the intensity screen window:

  1. Select from the menu Analysis > Energy > Screen

Exporting data from intensity screen plot

The underlying data may be exported using the Export toolbar icon, or by "Save data as..." on the contextual menu (obtained by control clicking on the image).

Displacing the intensity screen

To offset the Intensity Screen: insert a Break surface just before the screen surface and set the dx and dy parameters of the Break to the desired offset.

Options panel

Emitter
Selects which emitter (emission surface) is used. You can select "All" to consider all emitters.
Surface
Surface on which the screen resides.
Number of rays
Number of rays generated for each emitter considered.
Screen specification
These parameters control the size of the screen and the number of elements (bins).

See also