Chapter 7
Exposure
41
EAR99
Technology
Subject
to
Restrictions
Contained
on
the
Cover
Page.
7.3.1
Clean Until Trigger
When using an external trigger to initiate data readout, Lansis supports Clean Until
Trigger (CUT,) an additional level of cleaning/removing accumulated dark charge that
continues until the moment the External Sync pulse is received.
REFERENCES:
For information about the use and configuration of external
triggers, refer to:
•
Section 9.2, Experiment Timing
, on page 51, for Full
Frame Mode;
illustrates a flowchart of this mode.
Figure 7-2: Flowchart: Clean Until Trigger
44
11
-0
17
4
_
0
0
26
S
HUTTER
: O
PEN
B
EFORE
T
RIGGER
S
HUTTER
: N
ORMAL
S
HUTTER
O
PENS
CCD
IS
C
ONTINUOUSLY
S
HUTTER
R
EMAINS
O
PEN
S
YSTEM
W
AITS
W
HILE
D
ATA
IS
R
EAD
O
UT
S
HUTTER
O
PENS
C
LEANED
U
NTIL
T
RIGGER
P
ULSE
IS
R
ECEIVED
CCD
IS
C
ONTINUOUSLY
C
LEANED
U
NTIL
T
RIGGER
P
ULSE
IS
R
ECEIVED
FOR
P
ROGRAMMED
E
XPOSURE
T
IME
S
HUTTER
C
LOSES
OF
THE
A
RRAY