You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 4 Next »

Types of Offline Calibrations 

On the ground we run these types of offline calibration

  • Pedestal.  Use B/13 (non zero-suppressed) run or periodic/solicited triggers from flight mode runs.
    • Caculate mean/rms of pedestal values.  Check for skewness?
    • HV on or off?
    • Outlier rejection if HV on.
    • How to treat NA tiles.
  • MIP peak.  Use any muon runs.
    • Fit smooth curve to MIP peak.
    • Select fit range avoid pathologies
    • Select tracks near normal incidence.
    • Correct for pathlength in the tiles.   (This requires pedestal subrataction first).
  • Veto turn-on.   Use any muon runs.
    • Estimate 50% point of veto turn on curve.

calibGenACD Package Executables and Options

The package calibGenACD has the following executable to run calibrations

  • runPedestal.exe
  • runMuonCalib_Roi.exe
  • runMuonCalib_Tkr.exe
  • runVetoCalib.exe
  • runMeritCalib.exe

You can specify the input (not all jobs require all types of input files) and output files for all of these exectuable on the command line with these options:

  • -d <digiFiles>         : comma seperated list of digi ROOT files
  • -r <reconFiles>      : comma seperated list of recon ROOT files
  • -m <meritFiles>      : comma seperated list of merit ROOT files         
  • <output>                 : prefix (path/filename) to add to output files

In addition to this all these executable take the following options [defaultValues] :

  • -h                         : print help  message
  • -c <configFile>     : name of xml file with job configuration (see below)

  • -I <Instrument>    : specify instument being calibrated, this is a tag in the output files [LAT]

  • -n <nEvents>       : run over <nEvents> (0 for all events) [0]

  • -s <startEvent>    : start with event <startEvent> [0]

Finally, if the calibration jobs requires other calibration files as input, these can be specified with the following options:

  •  -p <pedFile>       : specify the file with the pedestals
  • -g <gainFile>       : specify the file with the gains (AKA mip peaks)

Xml job configuration file

The xml job configuration file should have the following format

<?xml version="1.0" ?>
<!-- job optin file for runMuonCalib.exe -->

<!DOCTYPE ifile SYSTEM "$(CALIBGENACDROOT)/xml/ifile.dtd" >

<ifile cvs_Header="$Header: $" cvs_Revision="$Revision: $" >
  <section name="parameters"> input parameters for ACD pedestal and gain calibration
   <item name="instrument" value="LAT">instrument type to be calibrated </item>
   <item name="<parameterName>"value="<parameterValue>"> Various Job Parameter settings, one per item</item>
  </section>
</ifile>

 The following parameter names mirror the command line arguments give above:

  • instrument  (same as -I)     : specify instument being calibrated, this is a tag in the output files [LAT]

  • digiFileList (same as -d)     : blank-delimited list of input digi root files
  • reconFileList (same as -r)  : blank-delimited list of input recon root files
  • meritFileList (same as -m)  : blank-delimited list of input merit root files
  • outputPrefix (same as -o)   : output file prefix
  • pedestalFile (same as -p)   : Name of text file with pedestal values
  • gainFile (same as -g)          : Name of text file with gain (AKA mip peak) values

 

 

  • No labels