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).
