Chapter 5 Web-Based Operations
106
Lynx DSA User's Manual - 9240227J
Flat Top (µs)
The Flat Top allows for the shaping function to be optimized for detectors with long
charge collection times, without a large increase in the overall processing time. The
Flat Top setting ranges from 0.0 to 3.2 µs.
Note: Independent adjustment of the Flat Top allows the shaping function to be
optimized for detectors with long charge collection time, without a large
increase in the overall processing time.
PUR Guard
Sets the device’s Guard Time (GT) multiplier to reject trailing edge pileup in the
event of detector/preamp anomalies. The PUR guard sets the pileup reject interval,
which is defined by GT x T
Risetime
+ T
flattop
.
PUR LTC Mode
Sets the amplifier’s Pulse Pileup Rejector and Live Time Corrector (LTC). When
PUR LTC is
On
, the pileup rejector and LTC are enabled.
Off
disables the pileup
rejector and LTC. For normal operation this setting should be
On
.
Miscellaneous
The Miscellaneous tab displays pole zero and Live-Time settings.
Figure 57: Miscellaneous Digital Filter Hardware Settings
