Figure 9-16: Timing Diagram: Dual-Trigger Dif Acquisition - Princeton Instruments PI-MAX4 Manual

Chapter 9
Figure 9-16

Figure 9-16: Timing Diagram: Dual-Trigger DIF Acquisition

TRIGGER
IMAGES
Perform the following procedure to configure a dual-trigger DIF acquisition:
The PI-MAX4 camera must be aligned and focused on the area of interest for this
1.
experiment. This is best accomplished while the PI-MAX4 is operating in
readout mode (i.e., before switching to
Verify that the
The
clicking on the
After the alignment and focus, the PI-MAX4 system needs to be placed into DIF mode.
2.
•
•
On the
3.
LightField and Dual Image Feature
illustrates the timing diagram for a dual-trigger DIF acquisition.
FIRST FRAME
D1 W1
TT
PD: Phosphor Decay Time
W1: Pulse 1 Gate Width
Phosphor Decay Delay
Phosphor Decay Delay
button within the
Advanced
NOTE:
The
Phosphor Decay Delay
to wait following the gate pulse before shifting the image. If
there is some residual image from the first frame in the second
frame, simply increase the
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
time between the two DIF images.
On the expander, select
Readout
On the
Common Acquisitions Settings
to a multiple of 2 (i.e., 2, 4, 6, etc.)
expander, verify that
Trigger
SHIFT
BEHIND
MASK
PD
S) D2: Pulse 2 Gate Delay
W2: Pulse 2 Gate Width
mode on the
DIF
is appropriate to the phosphor used by the camera.
time entered in LightField can be viewed or changed by
Common Acquisition Settings
setting tells LightField how long
Phosphor Decay Delay
setting can be decreased to reduce the
as the
DIF Mode
expander, configure the
Trigger Response
SECOND FRAME
D2 W2 PD
Full Frame
expander.)
Readout
expander.
setting to
.
Frames to Save
is set to
Shift Per Trigger
169
.