CONFOCOR
3
ConfoCor 3
Action Buttons
Carl Zeiss
02/2010 M60-1-0025
e
101
9.12.2.3
FCS Coincidence
The coincidence analysis generates a two-dimensional color-coded count rate histogram (Fig. 103) in this
diagram. During the measurement the count rates in channel 1 (red) and channel 2 (blue) are registered
in small time windows and the respective frequencies are calculated. The count rate in channel 1 is than
plotted versus the count rate in channel 2. All values are incremented in the diagram and count rates
occurring simultaneously in both channels will populate the diagonal of the diagram.
All the table functions in the
Coincidence
mode are identical to those in the
Correlation
mode
Note that the
Coincidence diagram is
currently only a display help and data cannot be exported.
There are no options available for the Coincidence Diagrams. Coincidences can support analysis in
case of rare event detection of a standard cross-correlation experiment, when the measurement
time drops short for sufficient statistical significance, because it might be prohibitively long - as a
rule of thumb; approximately 1000 transitions of a labeled species are required to generate a
correlation curve of sufficient quality.
Fig. 103
Coincidence diagram panel