Difference between revisions of "BCAL Calibration"

From GlueXWiki
Jump to: navigation, search
(→‎Steps in Calibration)
(→‎Steps in Calibration)
Line 1: Line 1:
 +
 +
 +
  
  
  
 
=Steps in Calibration=
 
=Steps in Calibration=
 +
 +
macros are located at ''/group/halld/Users/dalton/BCAL/monitoring/macros/''
  
 
# '''Remove 4ns ADC hardware offset''' (pass 1)
 
# '''Remove 4ns ADC hardware offset''' (pass 1)
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin to produce the ''BCAL_TDC_Offsets/Deltat_raw/'' histogram
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin to produce the ''BCAL_TDC_Offsets/Deltat_raw/'' histogram
 
## Run analysis script over output  
 
## Run analysis script over output  
−
##* script for single run is ''/home/dalton/gluex/BCAL/monitoring/macros/extract_ADC_Dt_Zcorr.C''
+
##* script for single run is ''macros/extract_ADC_Dt_Zcorr.C''
−
##* ''/home/dalton/gluex/BCAL/monitoring/macros/monitor.py --adc4ns'' can be used to run over all runs
+
##* ''macros/monitor.py --adc4ns'' can be used to run over all runs
 
## Load constants to CCDB table ''/BCAL/ADC_timing_offsets'' using ''python macros/commit_CCDB.py -d output/ADCendDt/correction/ --adc''
 
## Load constants to CCDB table ''/BCAL/ADC_timing_offsets'' using ''python macros/commit_CCDB.py -d output/ADCendDt/correction/ --adc''
 
# '''Remove 32ns ADC hardware offset''' (pass 1)
 
# '''Remove 32ns ADC hardware offset''' (pass 1)
Line 14: Line 19:
 
## Run reconstruction with ''BCAL_online'' plugin to produce the ''/bcal/bcal_Uhit_tdiff_raw_ave'' histogram (pass 1)
 
## Run reconstruction with ''BCAL_online'' plugin to produce the ''/bcal/bcal_Uhit_tdiff_raw_ave'' histogram (pass 1)
 
## Run analysis script over output  
 
## Run analysis script over output  
−
##* script for single run is ''/home/dalton/gluex/BCAL/monitoring/macros/extract_Uhit_tdiff.C''
+
##* script for single run is ''macros/extract_Uhit_tdiff.C''
−
##* ''/home/dalton/gluex/BCAL/monitoring/macros/monitor.py'' can be used to run over all runs
+
##* ''macros/monitor.py'' can be used to run over all runs
 
## Load constants to CCDB table ''/BCAL/TDC_offsets'' using ''python macros/commit_CCDB.py -d output/tdiff/TDCcorrection/runs/ --tdc -v''
 
## Load constants to CCDB table ''/BCAL/TDC_offsets'' using ''python macros/commit_CCDB.py -d output/tdiff/TDCcorrection/runs/ --tdc -v''
 
# '''TDC timewalk correction''' (pass 2)
 
# '''TDC timewalk correction''' (pass 2)
Line 30: Line 35:
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin
 
## Run analysis script over output
 
## Run analysis script over output
−
###
+
##*
 
## Load constants to CCDB  
 
## Load constants to CCDB  
 
# '''Calibrate the point time offset from tracking''' (pass 2)
 
# '''Calibrate the point time offset from tracking''' (pass 2)
Line 37: Line 42:
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin
 
## Run reconstruction with ''BCAL_TDC_Timing'' plugin
 
## Run analysis script over output  
 
## Run analysis script over output  
−
##*
+
### Linear fit (needs ~1M events per run)
 +
###* script for single run is ''macros/fit_ZvsDeltaT_p1.C''
 +
###* ''macros/monitor.py'' can be used to run over all runs
 +
### Quadratic fit (needs 5 files per run)
 
## Load constants to CCDB  
 
## Load constants to CCDB  
 
# '''Attenuation length and gain ratio''' (pass 3)
 
# '''Attenuation length and gain ratio''' (pass 3)

Revision as of 09:40, 24 April 2017




Steps in Calibration

macros are located at /group/halld/Users/dalton/BCAL/monitoring/macros/

  1. Remove 4ns ADC hardware offset (pass 1)
    1. Run reconstruction with BCAL_TDC_Timing plugin to produce the BCAL_TDC_Offsets/Deltat_raw/ histogram
    2. Run analysis script over output
      • script for single run is macros/extract_ADC_Dt_Zcorr.C
      • macros/monitor.py --adc4ns can be used to run over all runs
    3. Load constants to CCDB table /BCAL/ADC_timing_offsets using python macros/commit_CCDB.py -d output/ADCendDt/correction/ --adc
  2. Remove 32ns ADC hardware offset (pass 1)
    1. Set CCDB table /BCAL/TDC_offsets to 0
    2. Run reconstruction with BCAL_online plugin to produce the /bcal/bcal_Uhit_tdiff_raw_ave histogram (pass 1)
    3. Run analysis script over output
      • script for single run is macros/extract_Uhit_tdiff.C
      • macros/monitor.py can be used to run over all runs
    4. Load constants to CCDB table /BCAL/TDC_offsets using python macros/commit_CCDB.py -d output/tdiff/TDCcorrection/runs/ --tdc -v
  3. TDC timewalk correction (pass 2)
    1. Prerequisites:
      1. Remove 4ns ADC hardware offset
      2. Remove 32ns ADC hardware offset
    2. Run reconstruction with BCAL_TDC_Timing plugin
    3. Run analysis script over output
    4. Load constants to CCDB
  4. Position from end time-difference (pass 2)
    1. Prerequisites:
      1. Remove 4ns ADC hardware offset
    2. Run reconstruction with BCAL_TDC_Timing plugin
    3. Run analysis script over output
    4. Load constants to CCDB
  5. Calibrate the point time offset from tracking (pass 2)
    1. Prerequisites:
      1. Remove 4ns ADC hardware offset
    2. Run reconstruction with BCAL_TDC_Timing plugin
    3. Run analysis script over output
      1. Linear fit (needs ~1M events per run)
        • script for single run is macros/fit_ZvsDeltaT_p1.C
        • macros/monitor.py can be used to run over all runs
      2. Quadratic fit (needs 5 files per run)
    4. Load constants to CCDB
  6. Attenuation length and gain ratio (pass 3)
    1. Prerequisites:
      1. position calibration (pass 2)
    2. Run reconstruction with BCAL_attenlength_gainratio plugin
    3. Run analysis script over output
    4. Load constants to CCDB
Retrieved from "https://halldweb1.jlab.org/wiki/index.php?title=BCAL_Calibration&oldid=82076"