DHR/AR Series SALS Accessory Getting Started Guide Page 26
4 Enter the desired values and click OK.
The averaged image should resemble that shown below. A similar process can be used to obtain a
background image for water.
Figure 16 Averaged Mie scattering image in ImageJ.
Once you have both averaged images, the background is subtracted using the Image Calculator window
(shown below) selected from the Process menu.
Figure 17 Image Calculator window in ImageJ.
5 When the background correction has been made, click the Point selections icon on the toolbar.
6 Place the crosswires as close to the center of the beamstop as possible, and click to fix (the position can
be adjusted later, if it is not correct).
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