Timing Modes; Table 3. Camera Timing Modes - Princeton PIXIS-XB System User Manual

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Timing Modes

Overview
The basic PIXIS-XB timing modes are Free Run {No Response}, External Sync
{Readout Per Trigger}, and External Sync {Readout Per Trigger} with Continuous
Cleans {Clean Until Trigger}. These timing modes are combined with the Shutter options
to provide the widest variety of timing modes for precision experiment synchronization.
Free Run {No Response}
External Sync {Readout Per Trigger}
External Sync{Readout Per Trigger}
External Sync {Readout Per Trigger} with Continuous
Cleans {Clean Until Trigger}
External Sync {Readout Per Trigger} with Continuous
Cleans {Clean Until Trigger}
Note: Since PIXIS-XB cameras do not use shutters, the Shutter Type selection on the
Hardware Setup|Controller/Camera tab should be "None".
The shutter options available include Normal, PreOpen {Open Before Trigger}, Disable
Opened {Always Open} or Disable Closed {Always Closed}. Disable simply means that
the shutter will not operate during the experiment. Disable closed {Always Closed} is
useful for making dark charge measurements. PreOpen {Open Before Trigger}, available
in the External Sync {Readout Per Trigger} and External Sync {Readout Per Trigger}
with Continuous Cleans {Clean Until Trigger} modes, opens the shutter as soon as the
PIXIS-XB is ready to receive an External Sync pulse. This is required if the time between
the External Sync pulse and the event is less than a few milliseconds, the time it takes the
shutter to open.
The shutter timing is shown in the timing diagrams that follow. Except for Free Run,
where the modes of shutter operation are identical, both Normal and PreOpen lines are
shown in the timing diagrams and flow chart.
The timing diagrams are labeled indicating the exposure time (t
time (t
Chapter 5. Note that if there is no shutter selected in the software, the shutter
compensation time (the time required to close a mechanical shutter) will be
approximately 0 ms.
PIXIS-XB System Manual
Mode
), and readout time (t
c R

Table 3. Camera Timing Modes

). Exposure time and readout are discussed in more detail in
Shutter Condition
Normal
Normal
PreOpen {Open Before Trigger}
Normal
PreOpen {Open Before Trigger}
), shutter compensation
exp
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