FEI Quanta FEG 250, User'S Operation Manual

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Stages: Stage Related Functions
7-14
SPECIMEN ALIGNMENT
xT Align Feature
This utility is designed specifically for long features, extending off the
screen at the magnification required for an observation. It applies the
mapping process bringing the long feature either to the horizontal or
vertical axis to make the navigation easier. This can be performed at
any point within the stage field limits and takes into account the stage
rotation offset.
FIGURE 7-12 XT ALIGN FEATURE
Note:
xT Align Feature works best at the eucentric position (see above).
Longer distances result in a higher accuracy.
C a u t i o n !
Watch the obstacles significantly extending from the sample plane, as
these may interfere with equipment under the lens.
1. Select a long feature of interest on the sample.
2. Click the Stage menu / xT Align Feature… Choose either
Horizontal or Vertical , which relates to the desired final sample
orientation. Click the first point along the feature, the P1
coordinates update.
3. Click the second point along the feature, the P2 coordinates
update. Right-clicking anywhere in the imaging area deletes
points, enabling to define them again.