Performance
Lynx DSA User's Manual - 9240227J
145
Pileup Rejection/Live Time Correction
PULSE PAIR RESOLUTION
Better than 500 ns with NORM Detector Type selected.
DEAD TIME CORRECTION
Extended live time correction, accuracy of reference peak area changes 5% (3%
typical) at up to 50% system dead time with a setting of 5.6
µ
s rise time and 0.8
µ
s
flat top.
Data Acquisition Modes
All device settings are retained during power down until power is restored. Spectral
data retention is for a minimum of 5 years in the event of power loss.
Pulse Height Analysis (PHA)
CHANNELS
– Selections of 256, 512, 1024, 2048, 4096, 8192, 16384, or 32768
channels. Support for two equally-sized memory groups equal to the CHANNELS
selection.
DIGITAL OFFSET
(zero to full scale) – Specifies a number of channels to offset
the data. Signed quantity. The offset shifts the memory assignments of the device’s
conversion specified amount. Positive selection shifts the spectrum up; negative
selection shifts the spectrum down.
PRESET
– Real or Live Time timers with range of 0.01 s to 11930 hr with 0.01 s
resolution. Setting timers to zero implies infinity.
CONTROL
– Internal or External Start/Stop control, both with pulse or level
control.
DIGITAL DELAY
– An adjustable digital signal delay for timing applications
(coincidence counting) is supported. This feature is used in place of a delay amplifier
and supports a wide range of delay times (0 to 160
µ
s in 0.2
µ
s steps).
MULTICHANNEL SCALING (MCS)
INPUT SOURCE
– ROI, Fast Discriminator, or TTL IN.
CHANNELS
– Selections of 256, 512, 1024, 2048, 4096, 8192, 16384, or 32768
channels. Support for two equally-sized memory groups equal to the CHANNELS
selection.
DWELL TIME
– 1 to 999 in units of microseconds, milliseconds or seconds.
Minimum dwell time is 1 microsecond; maximum dwell time is 999 s.
PRESET SWEEP COUNTER
– 0 to 2
32
-1 sweeps. Zero implies forever.
CONTROL
– Internal or External Start/Stop control both with pulse or level control.
