Hardware Options
Lynx DSA User's Manual - 9240227J
119
Single Channel Analyzers (SCA)
Activates the settings for the Single Channel Analyzers settings and plot.
Figure 63: Single Channel Analyzers Hardware Settings
The Lynx supports eight programmable SCA Counters. The SCAs acquire data
independently of the main acquisition mode. Selecting
On
begins the SCA counters
acquiring and continue until
turned Off
. The acquisition consist of a series of time
intervals specified through the Preset Limit setting.
SCA’s are independent of each other; each SCA counts pulses from energy events
that store within the PHA spectrum and occur within the SCA’s upper and lower
level discriminator (ULD and LLD) setting. The settings are independent and can
overlap.
Preset
The SCAs support
Live
and
Real
time presets.
Preset Limit (mS)
Value must be entered in milliseconds. Range is 10 milliseconds to 2
32
-1
milliseconds.
Clock Source
The clock source defines the clock source when external synchronization is enabled
(turned on). Internal means that the clock source is the internal 1
µ
S clock. External
means that he clock source is defined by the External Sync input.
