Short Guide for Pedestals Measurement
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stop data acquisition, close tape
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close injection beamline ('FB5', ask COSY operator)
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disable trigger (OR-unit,
all switches to OFF)
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Wendy Master Control Window:
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->'Start Control Proc' ->'FB LeCroy Sys.'
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->'Start Control Proc' ->'CAMAC Drams Sys.'
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two windows have appeared:
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'CAMAC Drams ...'
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'FB LeCroy ...'
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in 'CAMAC Drams ...'
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at beginning of flat-top
->'Setup' ->'Build Pedestals'
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wait for message 'Pedestals build, ...' appearing in
'COSY Log' window
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->'Setup' ->'Load Setup'
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to check pedestal values:
->'Monitoring' ->'Show Setup Par.'
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->'General' ->'Save Setup'
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in 'FASTBUS ...'
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check the number of events requested:
->'Setup' ->'ADC 1881 Setup' ->'Build Pedestal Setup'
must be below 'flattop (in sec) × 10'
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at beginning of flat-top
->'Setup' ->'ADC 1881 Setup' ->Build Pedestals'
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wait for message 'Pedestals build, ...' appearing in
'COSY Log' window
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->'Setup' ->'Load Setup'
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to check pedestal values:
->'Monitoring' ->'show module setup' ->'ADC 1881 setup' ->'Thresholds'
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->'General' ->'Save Setup'
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enabble trigger (OR-unit)
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enable beam injection (FB5)
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open tape, start data acquisition