DMF Developed Software: GPS
Frequently SEM specimens need to be tilted to view features, and the desired tilt axis rarely corresponds to
the tilt axis of the SEM stage. This requires that the specimen be physically rotated so that the two tilt axes
coincide. This is a time-consuming and frustrating process if done manually, as the feature of interest needs to
be kept in the field of view as rotation is conducted, and can easily be "lost", especially if performed at high
magnification.
GPS greatly eases this task by performing the desired physical stage rotation angle (which can be obtained by electronic
image rotation), and then moving the X,Y stage axis to the new position of the object of interest. Once examination
of the object is complete, GPS can also reposition the stage back to the starting point, which is especially critical
if systematic transects of the specimen are being conducted.
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