Teledyne Princeton Instruments PI-MAX 3, System Manual

Page: 169 / 250

Chapter 12 LightField and Dual Image Feature (DIF) 169
Figure 12-6 shows the timing diagram for single-trigger DIF operation.
Figure 12-6: Timing Diagram: DIF Operation, Single Trigger
Operating PI-MAX3 in DIF mode is similar to standard operation of a PI-MAX3 with
SuperSYNCHRO. Perform the following procedure to configure a single-trigger DIF
experiment:
1. Align and focus the PI-MAX3 on the area of interest for the experiment.
This is best performed while the PI-MAX3 is operating in Full Frame readout mode
(i.e., before switching to DIF mode.)
Verify that the Phosphor Decay Time is appropriate for the phosphor used by the
camera. This information is accessed by clicking Advanced on the Common
Acquisition Settings expander.
NOTE:
The Phosphor Decay Delay setting tells LightField how long
to wait after the gate pulse to shift the image.
If there is some residual image from the first frame in the
second frame, simply increase the Phosphor Decay Delay
setting to allow more time for the phosphor emission to
decay before shifting the image.
If residual image is not an issue, then the Phosphor Decay
Delay setting can be decreased to reduce the time between
the two DIF images.
2. After alignment and focus, the PI-MAX3 system needs to be configure for DIF mode.
• On the Readout expander, select configure Readout Mode to DIF;
• On the Common Acquisition Settings expander, configure Number of Frames to
a multiple of 2 (e.g., 2, 4, 6, etc.)
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