Tescan Vega 3 Sem Instructions For Use Manual page 17

VEGA 3 SEM
Automatic Centering
The automatic procedure of column centering is very fast and suitable for low
magnifications. For very precise work at high magnifications manual centering is more
suitable.
1. Insert the centering specimen.
2. Set up the recommended working conditions to start.
3. Use the function Adjustment >>> Auto Column Centering in the Electron Beam
panel.
Manual Centering
1. Insert the centering specimen.
2. Set up the working conditions to start.
RESOLUTION mode
3. Use the function Adjustment >>> Manual Column Centering in the Electron Beam
panel. The image starts wobbling, that is, periodically changing the working distance.
Press Next>> button.
4. Minimize the image movement by changing the OBJ Centering using the trackball and
keys F11 and F12.
DEPTH mode
1. Set the same magnification for both RESOLUTION and DEPTH modes. Use the
trackball.
2. Set the same field of view by means of changing the IML Centering parameters using
the trackball and keys F11 and F12.
3. Minimize the image movement by means of changing the OBJ Centering.
FIELD mode
1. Set the same magnification for the RESOLUTION and FIELD modes. Use the trackball.
2. Minimize the image movement by means of changing the IML Centering using the
trackball and keys F11 and F12.
3. Set the same field of view by means of changing the OBJ Centering.
WIDE FIELD mode
1. Set the same magnification for the RESOLUTION and WIDE FIELD modes.
2. Set the same field of view by means of changing the IML Centering.
Note: It is necessary to keep to the described sequence for each procedure. The mode
RESOLUTION must always be adjusted first.
Description of the Microscope
17