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User Manual, Rev 02
Rad-icon 2329 GigE Detector
Teledyne DALSA
Triggered (External) mode
The detector is in Slave mode. In this mode the detector will take a single image (or
multiple) at the moment a trigger signal is applied to the detector. This mode is equal
to the Snapshot mode but no reset is needed before integration can start.
The trigger output indicates the Exposure Time when no read out of the sensor
occurs.
Row #
Time
Trigger input
Trigger output
Image array readout
Frame n
Frame n+1
Detector Data out
1
2
3
4
Pixel Array
Timing diagram in Triggered mode
Some notes about the external trigger mode.
Sensor array read out starts at falling edge of external trigger input. The duty cycle of
external trigger is not critical.
When no external trigger signal is applied, the detector is accumulating dark signal.
When an external trigger (sequence) is applied, it is recommended to discard the first
image frame. Trigger pulse width
≥
1ms.
The trigger frequency is limited by the maximum frame rate.
Snapshot mode
In this mode the detector will initiate a sensor reset at rising edge of the trigger input
and succeeding to this it will read out the sensor at the falling edge.
The sensor reset is actually a normal read out of the sensor but the data is discarded.
The trigger output indicates the Exposure Time when no reset or read out of the
sensor occurs.
To allow sufficient time for the sensor reset, the delay between rising edge of the
trigger input and when the detector is exposed to x-ray should equal or higher to the
reset or read out time (125ms) of the sensor.
