Acquisition
Lynx II DSA User's Manual – 7096089 93
Comp Preset
Computational preset can be enabled for PHA, MSS, and DLFC. Selecting None disables
Comp Preset.
If Integral is selected, then the Comp Limit value represents the integral (or sum of all
counts) within the specified channels’ range for Input 1 that will terminate the acquisition.
The comp window is specified in channel numbers (Start and End) whose values are
based on the current Input Size setting.
Latch
Available for TLIST modes. Select the source for the timestamp of the energy event, Fast
Discriminator or Peak Detect.
Timebase
Available for TLIST. Selects the resolution of the clock which is used for the sampling
rate. Can be set to 100 nSec or 1.0 µSec.
Clock Source
Available for LIST and TLIST. Clock source for time tagging List data. Internal selects
the Lynx II built-in 1 MHz clock. External selects an external source supplied through the
External Sync input. This field is available when the External Synchronization status is set
to “Independent”.
Coincidence
Coincidence qualifies the processing and recording of incoming events. When enabled, a
qualifying gate signal must arrive at the COINC/ANTI connector within a time window.
The window is selectable through the Gate Delay, Input Gate Delay, and Input Pulse
Width parameters. The Coincidence tab settings are described below.
Figure 46: Coincidence Acquisition Settings
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