User`s guide

ACQUISITION MODES
SDK SECTION 4
Page 35
Single Scan
Single Scan is the simplest acquisition mode available with the Andor system. In this mode Andor SDK
performs one scan (or readout) of the CCD and stores the acquired data in the memory of the PC.
To set the acquisition mode to Single Scan call:
SetAcquisitionMode(1)
SetExposureTime(0.3)
Here the exposure time is the time during which the CCD sensor is sensitive to light. The exposure time is set
via the SetExposureTime function.
NOTE: Due to the time needed to shift charge into the shift register, digitize it and operate shutters,
where necessary, the exposure time cannot be set to just any value. For example, the minimum
exposure time depends on many factors including the readout mode, trigger mode and the digitizing
rate. To help the user determine what the actual exposure time will be the driver automatically
calculates the nearest allowed value, not less than the user’s choice. The actual calculated exposure
time used by Andor SDK may be obtained via the GetAcquisitionTimings function (this function should
be called after the acquisition details have been fully defined i.e. readout mode, trigger mode etc.
have been set).