4 DESCRIPTION OF CONTROLS
EM210F-1
4-41
④
Freq/Amp…
Opens the EOS Property screen (
F
Sect. 4.4.6h) for setting the frequency and
amplitude of the wobblers.
⑤
Wobbler
HT:
Clicking this button pulsates the high voltage. Used for the
voltage center adjustment.
Gun:
Clicking this button pulsates the coil current in the electron gun
1
st
beam deflector. Used for electron gun alignment.
OBJ:
Clicking this button pulsates the objective lens current. Used
for the current center adjustment.
ImageX/Y:
Clicking this button pulsates the condenser lens beam deflector
current. Used for the “Shift Balance” adjustment.
TiltX/Y:
Clicking this button pulsates the condenser lens beam deflector
current. Used for the “Tilt Balance” adjustment.
⑥
Save to Alignment File…
Saves the lens and deflector data.
⑦
Load Alignment File…
Read the saved lens data.
4.4.6o Bake Out/ACD screens
l
ACD Heat screen
①
②
Fig. 4.47 ACD Heat screen
①
ACD Heat tab
Opens the ACD Heat screen.
②
ACD Heat
Turns on and off the heater in the liquid nitrogen tank for the anti-contamination
device. Used for increasing the tank temperature to the room temperature.