Princeton Instruments PI-MAX 3 System, Manual, Page: 65 / 150

Chapter 6 Gated Operation 65
c. Click on "Setup…" and define the pulse sequence on the Sequential Gating Setup
dialog box. See Figure 32.

Enter the number of spectra to be acquired (in this case, 41).

Select "Fixed Increment".

Enter the start and end times for the gate width. (Since this experiment
requires a fixed gate width these values will be the same.)

Enter the start and end durations for the gate delay. (For this experiment, the
start delay is 1 µs and the end delay is 201 µs.)

Then select the number of gates per exposure (in this case, 1).

To check the gate delay for each of the 41 spectra, click on "View
Width/Delay Sequence."
Figure 32. Sequential Gating Setup and Width/Delay Sequence dialog boxes
d. The functions on the Trigger Out tab page allow you to enable the
SyncMASTER trigger output from the SyncMASTER1 and SyncMASTER2
connectors on the
AUX I/O
cable and set up the Aux. Out signal at the
AUX
OUT connector on the rear of the PI-MAX3.

When you enable
SyncMASTER 1
, the output of the SyncMASTER1
connector will be at the frequency entered on the Trigger In tab page.

The output of the
SyncMASTER2
connector will be at the same frequency
as that of SyncMASTER1. However, you can enter a delay so the edges of
that signal will occur after the edges of SyncMASTER1.

If you are using the
Aux. Out
signal from the SuperSYNCHRO to trigger a
piece of equipment, then enter the Auxiliary pulse delay time on the Trigger
Out tab page (Figure 33) . The delay is based on T0 (in effect it is a delay
from SyncMASTER1which also starts at T0). Enter the pulse width needed
to trigger the equipment.