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13.5 Multiple Exposure mode
It is possible to take multiple exposures in one image by setting the number of
exposures with the variable nexpf. The default value is 1; all exposure modes
use this variable. If ‘nexpf 2’ is set, then the detector will take exposures in
the same way as described for external trigger and external enable, but will
additively bundle 2 exposures in each readout. If ni is defined to be 3 and
nexpf is defined to be 4, then the detector will take 12 exposures and
generate 3 images.
The advantage of this mode comes when you want to record a
small number of x-rays at a repetitive fast rate e.g. at the Fempto project at
the SLS. This also eliminate the need to wait 3 ms between exposures;
however at least 3ms is needed for the image readout after nexpf eposures.
Figure 28. Osciloscope image of the multiple exposure mode.