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User name romaniip
Log entry time 15:37:43 on September 26, 2007
Entry number 142606
keyword=Thresholds for 16-channels discriminators
The thresholds setup for discriminatros is working now.
There is minimum hardware threshold preset ~50mV.
One can setup threshold using 'cvxwrks' account on cdaql? computer
by typing:
gep-threshold set channel value
where:
'channel' - is channel number in range 0-3 that corresponded
to discriminators from 1 to 4 located in NIM crate.
'value' - is threshold in "mV" in range 0-1000mV that will be set to
discriminator.
The sign of the value does not play a role, since script sets ony
negative voltage.
To get the threshold that set in discriminator one can type:
gep-threshold get channel
where:
'channel' - is channel number in range 0-3 (discriminator 1-4).
This script prints two values: first one is threshold level in mV,
second one is binary value from DAC register for selected channel.