PQ=çÑ=NPQ
fåëíêìÅíáçå=j~åì~ä=`êçëëÄÉ~ã=PQM
=
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Before the electron beam exits the objective lens (
6
), the electrostatic lens creates an opposing
field which reduces the potential of the electrons by + 8 kV. The energy of the electrons reaching
the specimen surface therefore corresponds to the set acceleration voltage (EHT).
Signal detec-
tion
When the primary electron beam hits the specimen, certain interaction products are released,
which can be recorded by specific detectors.
3.3.3. Imaging modes
The following imaging modes are available:
Imaging mode
FIB Mode..
Characteristics
Typical application
SEM imaging
SEM
Electron beam is active,
ion beam is blanked.
The SE signal is synchronised
to the SEM scan.
High resolution FESEM
Содержание Crossbeam 340
Страница 1: ...Crossbeam 340 Crossbeam workstation Instruction Manual ...
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Страница 133: ......