Filter
Top Products
156 PI-MAX
®
4 System Manual Issue 4
9.4.2 Software Configuration and Operation
The operation of the PI-MAX4 in DIF mode is similar to standard operation of a PI-MAX4
with SuperSYNCHRO. This section describes the minor operational differences that are due
to the special timing modes required for DIF.
Figure 9-6 illustrates the timing diagram for a single trigger DIF experiment.
Figure 9-6: Timing Diagram: DIF Operation, Single Trigger
Perform the following procedure to configure a single trigger DIF experiment:
1. The PI-MAX4 camera must be aligned and focused on the area of interest for this
experiment. This is best accomplished while the PI-MAX4 is operating in Full Frame
readout mode (i.e., before switching to DIF mode on the Readout expander.)
Verify that the Phosphor Decay Delay is appropriate to the phosphor used by the
camera. The Phosphor Decay Delay time entered in LightField can be viewed or
changed by clicking on the Advanced button on the Common Acquisition Settings
expander.
NOTE:
The Phosphor Decay Delay setting is used to tell 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 the alignment and focus, the PI-MAX4 system needs to be put into DIF mode.
• On the Readout expander, select DIF as the Readout Mode.
• On the Common Acquisitions Settings expander, configure the Number of
Frames to a multiple of 2 (i.e., 2, 4, 6, etc.)
3. On the Trigger expander, verify that Trigger Response is set to Readout Per
Trigger.
' ,QLWLDO*DWH'HOD\XV ' ,QWHU3XOVH*DWH'HOD\
3' 3KRVSKRU'HFD\7LPH
: 3XOVH*DWH:LGWK : 3XOVH*DWH:LGWK
D1 W1 D2 W2
PD PD
75,**(5
,0$*(6
FIRST FRAME SECOND FRAME
6+,)7%(+,1'
0$6.
4411-0137_0091