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Software Control: xT microscope Control Software
4-20
THE TOOLBAR
displayed below the Menu bar is made up of functional icons linked to
the most frequently used system controls. It also contains group of
icons for quick switching between UI Pages. The toolbar can be a bit
different in content or style (see the
Preferences… / General tab).
FIGURE 4-11 THE TOOLBAR
Whenever you select a function the corresponding icon is highlighted
to indicate that the function is active (except of auto-functions, which
display a progress dialogue).
Note:
If any icon represents a menu function, refer to the corresponding
menu for its description.
Beam
Right-clicking the beam icon at the first toolbar position opens the
selection of all available beams. Double-clicking this icon toggles
between the actual and the last beam used for active quad (see
below). This functionality is also user dependent.
Magnification / High Voltage / Spot List Boxes
Click the list box to open a selection of the pre-set and actually
allowed values, choose one and it is applied immediately (see the
Preferences… / Presets tab).
• The Magnification is possible to display as the Horizontal Field
Width (HFW) alternatively (see the Preferences… / General tab).
• The Spot is defined as the actual electron beam diameter on the
specimen surface and it is expressed by a relative number (see
Chapter 5).
The optional way (representable in the toolbar) to the Spot size
number is the electron
Beam Current value. Both physical
quantities are related. Changing the HV changes the beam current
values also. The electron beam current displayed in the toolbar list
box (and optionally in the Databar) is approximate and valid only if
the microscope is well aligned.
Degauss (F8)
triggers the degauss procedure which puts all actually used electron
lenses in a normalized state by removing their hysteresis efects. For a
few seconds while the procedure is running all live images disappear
or turn fuzzy, and than returns back.
Use this function with (almost) focused image to obtain the most
accurate Magnification, Horizontal Field Width (HFW) and Working
Distance (WD) readouts.
Imaging Pixel Resolution List Box
This list contains available imaging pixel resolutions (also used for
captured electron images). Selecting a new resolution results in the
immediate change of the scanning raster and since the present dwell
time remains unchanged, the actual scanning frequency (both Line
and Frame time) changes.
Direct Measurement
This button enables to quickly access the measurement tool without
necessity to change a page. Clicking the icon deactivates (grey color)
/ activates (yellow color) the functionality (see below).