Timing adjustment for Tower crates
Slopes method
This is list of runs and tower crate delays in ns (given in hex).
  int list[]={ 
    //crate1   crate2   crate3      crate4     crate5     crate6   runID
    0x2       ,0x2       ,0x34      ,0x34      ,0x16      ,0xC    ,6020035,
    0xA       ,0x6       ,0x3C      ,0x3C      ,0x1E      ,0x14   ,6020038,
    0xE       ,0xA       ,0x44      ,0x44      ,0x26      ,0x1C   ,6020040,
    0x12      ,0x12      ,0x48      ,0x48      ,0x2A      ,0x20   ,6020041,
    0x1A      ,0x16      ,0x4C      ,0x4C      ,0x2E      ,0x24   ,6020047,
    0x1E      ,0x1A      ,0x54      ,0x54      ,0x36      ,0x2C   ,6020043,
    0x22      ,0x22      ,0x58      ,0x58      ,0x3A      ,0x30   ,6020045,
    0x2A      ,0x2A      ,0x5C      ,0x5C      ,0x3E      ,0x34   ,6020049
  };

  • Procedure Slopes were fitted to 60 towers at eta bin=5 (should have the same gain). Fitting range [ped+10,ped+40]. Gain=-1/slope. errGain=errSlope/slope^2. 40-90K events used.

  • Example of tower spectra for crate 1 tower 12TD04 for 8 delays. The gain vs. time (ns) is in the lower right corner. The rise at 42ns is in the data. plot (PS)



    CRATE 1 , best delay 15 ns, FIFO=19


    CRATE 2, best delay 5 ns, FIFO=19


    CRATE 3, best delay 85 ns, FIFO=19


    CRATE 4, best delay 80 ns, FIFO=19


    CRATE 5, best delay ??? ns, FIFO=19 , some towers did not responded


    CRATE 6, best delay 35 ns, FIFO=19

    Macro used plTiming.C