40
Lansis
®
System Manual
Issue 1
EAR99
Technology
Subject
to
Restrictions
Contained
on
the
Cover
Page.
For example, when acquiring one frame of dark data to generate the subtractable
pattern, the dark pattern readout noise will be ~1.414
N
R
, which is an increase of ~41%
over the baseline readout noise. This value is calculated as follows:
for typical noise penalty figures as a percentage of readout noise, N
R
.
Table 7-1:
Readout Noise Penalty vs Number of Acquired Frames
Number of Acquired Frames
(F)
Noise Penalty
a
a. Expressed as a percentage of
R
1
41%
4
12%
8
6%
16
3%
N
RT
N
R
2
N
R
2
F
---------
+
=
N
R
2
N
R
2
F
---------
+
=
N
R
2
N
R
2
1
---------
+
=
2
N
R
2
=
1.414
N
R
=
