Princeton Instruments PI-MAX4, Manual

Page: 159 / 326

Chapter 9 LightField and Dual Image Feature 159
9.3 Trigger Setup
Triggering for DIF operation is configured on the
Trigger
and the
SuperSYNCHRO Timing
expanders. Trigger configuration begins by selecting the desired
Trigger Response
and
Trigger Source
, both of which are found on the
Trigger
expander. See Figure 9-3 .
Figure 9-3: Trigger Expander: Internal Trigger Source
9.3.1 Trigger Response
Trigger Response
determines the number of triggers required in order to acquire the two
images.
Valid values for
Trigger Responses are:
• Readout Per Trigger
One trigger is used to acquire both images.
Figure 9-4 illustrates the timing diagram for a single-trigger DIF acquisition.
Figure 9-4: Timing Diagram: Single-Trigger (Readout Per Trigger) DIF
44
11-0
139_0
187
D1 W1
PD
D2
SHIFT
BEHIND
MASK
TRIGGER
W2 PD
SECOND FRAME FIRST FRAME
IMAGES
',QLWLDO*DWH'HOD\• P S)
PD: Phosphor Decay Time
W1: Pulse 1 Gate Width
D2: Inter-Pulse Gate Delay
W2: Pulse 2 Gate Width
44
11-0
139_0
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