User manual

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The picket fence analysis tools automatically detects the beam lines and displays the
detected beam line points at the analysis path lines as shown above in the center
section. The beam line detection uses the selected region of the interest (green
dashed rectangle) to analyze the image data. Select the frame icon, to make this
region of interest editable. Click and drag the border lines so that only beam lines are
covered.
The “Beam Profile” tab shows the profile along the analysis path lines and the detected
extrema. The button allows the detection parameters to be changed. Default settings
are optimized for the use of EBT2 and EBT3 films. The most important parameters are
the following:
 Analysis Color Channel: Signal used to generate profile. Red channel is
most sensitive for EBT2/3 film. Red/Blue ratio compensates for EBT 2/3 film
thickness variations.
 Beams are darker then background: Beam lines are described by profile
minima – otherwise maxima are used.
 Beam Alignment: Allows to synchronize beam lines (angle and distance)
 Detection Mode: Method used to detect extrema along the profile curve.
 Number of Analysis Lines: More lines stabilize the results but consume
more computer performance
 Analysis Path Width: Wider range delivers smoother profiles. Path range
cannot exceed visible beam line area.
Underneath the center registration image, the beam line statistics are displayed.
Information includes minimum, average and maximum distance of the detected beam
lines as well as the minimum, average and maximum of the slant angle.