Taking GMS calibration runs
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Basic steps

  • Start CODA using et_daq.sh. If it is already running use ABORT.
  • When the CONFIGURE stage is reached choose the LAC_CALIB from the available options.
  • Before hitting GO you must give the command s_trigbit_lac (from any xterm window on the ClOn systems running the Daq)
  • Choose the lac_thresh_30.GMS (or lac_thresh_50.GMS) for the
    threshold setting using the diman program  
  • Hit GO to start the run.
  • Run for 5~10 minutes. 
  • Stop the run
    Now you have a GMS file in /raid/stage_in/ named Lac_Calib_#.A00 (# is the run number). 
  • At this point follow this procedure to analyze the file:  
    • Log on a Clon machine from which you can access the /raid partition;
      Username:clasrun.   
      Password: *******
    • Go to the aiace/pulsers/ec12sparhbook directory  
      clon10> cd aiace/pulsers/ec12sparhbook
    • Give the following command:
      clon10:ec12sparhbook>
    • ec12sparhbook  --file your_new_gms_file --prod 1  --threshold 500 --trig  50000
      Type ec12sparhbook -h for a list of the options.                                
  • At this point you have the output file:   kokos.hbook
  • Rename the file:
    clon10:ec12sparhbook> mv kokos.hbook kokos#.hbook
  • To have additional statistics you must run more than once  ec12sparhbook on the
    successive 50000 events, that is:
    • ec12sparhbook  --file your_new_gms_file --prod 1  --threshold 500 --start 50000 --trig  100000
    • In this way it is possible to skip the first 50000 events already analyzed
      and you will get another kokos.hbook file (rename it, for example kokos2.hbook).
      Repeat the procedure to collect enough kokos files to have a good statistics
      (1 kokos = 100 entries per channel if trig=50000)
  • To analyze the n-tuple of kokos#.hbook files you have
    to run pulschain.kumac from inside paw
    • Before to do this edit  the pulschain.kumac file and modify the following entries
    • run= your_run_number (in the 6th line on the code);
    • chain koko kokos1.hbook kokos2.hbook kokos3.hbook.... in the 13th line
      clon10:ec12sparhbook> paw
      paw>  exe pulschain.kumac
  • At the end of the kumac execution you will have this 2 files:

      In the first file you have all the information of the 526 GMS histograms
      In the second file you have all the 526 histograms

  • Please move the kokos files and the gms* files into the ~web/GMS_data/ directory
    in pcaiace2.cebaf.gov

     

The list of the GMS run is here .
Click here to access LAC GMS data.