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7
Align the aperture:
a
In the
Apertures
tab, select the
Focus
Wobble
checkbox.
Focus Wobble is a function that sweeps the fo-
cus of the objective lens backwards and for-
wards through the focus on the specimen
plane. If the aperture is slightly misaligned, a
lateral shift can be observed.
b
To adjust the wobble intensity, use the
Wobble Amplitude
scroll bar.
c
To accelerate the wobble speed, select the
Wobble Fast
checkbox.
d
Click
Aperture Align
.
e
Use the vertical and horizontal slider of the
Aperture Align
box until there is no move-
ment of the detail in X- and Y- direction.
The specimen detail should just be
pulsating without shifting.
f
Clear the
Focus Wobble
checkbox.
8
In the
Scanning
tab, set
Scan Speed = 7
.
9
Bring the image into focus.
10 Correct astigmatism:
a
Select a detail (e.g. a mark or an edge) on
the specimen surface.
b
In the toolbar, click the
Reduced Raster
icon.
Ensure the selected detail is in the raster.
Summary of Contents for Crossbeam 340
Page 1: ...Crossbeam 340 Crossbeam workstation Instruction Manual ...
Page 24: ...OQ çÑ NPQ fåëíêìÅíáçå j åì ä êçëëÄÉ ã PQM ÉåMOE loF OK p ÑÉíó p ÑÉíó ÉèìáéãÉåí ...
Page 60: ...SM çÑ NPQ fåëíêìÅíáçå j åì ä êçëëÄÉ ã PQM ÉåMOE loF RK fåëí ää íáçå ...
Page 120: ...NOM çÑ NPQ fåëíêìÅíáçå j åì ä êçëëÄÉ ã PQM ÉåMOE loF UK qêçìÄäÉëÜççíáåÖ mçïÉê ÅáêÅìáí ...
Page 126: ...NOS çÑ NPQ fåëíêìÅíáçå j åì ä êçëëÄÉ ã PQM ÉåMOE loF NNK ÄÄêÉîá íáçåë ...
Page 130: ...NPM çÑ NPQ fåëíêìÅíáçå j åì ä êçëëÄÉ ã PQM ÉåMOE loF NPK aÉÅä ê íáçå çÑ ÅçåÑçêãáíó ...
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