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PI-MAX2 DIF Camera
Princeton Instruments 3 of 8 May 26, 2004
E:\Ma nuals\Syst ems\PI-MAX\PI-M AX2 DIF Ca mera.doc
Dual Trigger Mode
The Dual Trigger Mode requires two triggers to acquire both images of the DIF operation.
The PTG will control the gating of the intensifier for both images. To make the gate width
and delay the same for both images, select Repetitive Mode from the
Gating
tab of the
Pulser dialog then click the Setup button to set the values. To make the gate width and delay
different for each pulse, select Sequential Mode from the
Gating
tab of the Pulse dialog,
then click the Setup button to set the values. The Number of Images should be set to 2, and
the first image will use the starting values for gate width and delay while the second image
will use the ending values.
CCD Operation
Shutter
SCAN
Intensifier Gate
Trigger
Gate
Width
Read out
both images
Shift
first image
Gate
Delay
≥ 2 µs
Gate
Delay
Shutter Comp.
400 ns
400 ns
Shutter Comp. = Phosphor Decay Time
Gate
Width
Figure 2. DIF Operation: Dual Trigger Timing Diagram