Stereo Scan 440 - DCU

Chapter 2. Operation 2.,.,5
,- . .. - -~~-~ - -_c--- - - - --, , c
Icon:
Left:
Right:
Icon:
Left:
Right
Icon:
Left:
Right:
Icoo:
Left:
Right:
Signal
Assigns Brightness and Conb'aSt to the mouse
Selects the Signal Adjust panel
Mag/FOCUS
Assigns Magnification and Focus to the mouse
Selects the Auto FocuS! Auto Stigmation panel
NoR Reduction
Assigns N (number of frames to average) to the mouse
Selects the Noise Reduction panel
Photo
Initiates an image record sequence
Selects the Image Export panel
Icon:
Left:
Right:
Instrument Operation
Specimen Handling and Vacuum Control
Stigmation Conoection
Assigns Stigrnator X and Y to the mouse
Selects the Stigmation panel
The routines described below are required to get the specimen into the chamber.
under vacuum and in the right P'JSition to be scanned by the beam. In addition
some less frequent operations such as changing the filament and installing the
anode spacer are also included here.
Changing the Specimen
The beam must be switched off before opening the chamber for a specimen
change. Proceed as follows:-
2.
3.
Select the drop-down box for beam state in the toolbar.
From the list. choose Beam Off.
A message will be displayed to show that the filament current is being
decreased before the state Beam Off is displayed.
Stereoscan 440 Operator Manual