Chapter 9
Full Frame Readout
57
EAR99
Technology
Subject
to
Restrictions
Contained
on
the
Cover
Page.
9.2.1.2.2
Always Closed
illustrates the timing diagram for Start on Single Trigger mode combined
with Always Closed shutter mode.
Figure 9-9: Full Frame Timing Diagram: Start on Single Trigger, Always Closed
This mode is primarily used when acquiring a dark reference file. However, Lansis
typically runs at such a low temperature that a dark reference file is often unnecessary.
9.2.1.2.3
Always Open
illustrates the timing diagram for Start on Single Trigger mode combined
with Always Open shutter mode.
Figure 9-10: Full Frame Timing Diagram: Start on Single Trigger, Always Open
This mode is typically used when an experiment does not support waiting for the
shutter to open. Ideally, the only light generated by the experiment is the signal of
interest (e.g., a dark chamber with a spark discharge.)
**
If Enabled
READOUT
TRIGGER
SHUTTER
Always
Closed
Wait For
Trigger
Pgm’d
Cleans
Clean Until
Trigger
**
ACQUIRE
EXPOSE
t
exp
t
R
44
11-
0
174_
0
09
4
**
If Enabled
READOUT
TRIGGER
SHUTTER
Always
Open
Wait For
Trigger
Pgm’d
Cleans
Clean
Until
Trigger
**
ACQUIRE
EXPOSE
t
R
t
exp
44
11
-0
174
_
0
0
9
5
