TOF-02 counters characterization

The TOF-02 counters make a first standard characterization with the same PMs at each side, in order to find:


Standard steps for data taking

  1. connect as user daq on lnxams2, go in dir ~/telescope
  2. use minicom to set the HV of the four PMs of group CT3 equal to the Working High Voltage (HVL) written on PM_Calib_Prod table of the TOF database.
  3. wait 1/2 hour before starting a data acquisition run
  4. start xdfd program and open telescope.xdfd
  5. press GO button to open Monitor window
  6. DO PEDESTAL RUN: disabhilit arp from AND1 and change arn with clock lemo; disabhilit AND2 2nd channel and start a 2-minuites run named pede-DD-MM-YYYY.dat (where DD=day; mm=month; YYYY=year)
  7. copy pedestal run on lnxams1 (user daq), into ~/TELESCOPE directoty
  8. connect as user daq on lnxams1, go in dir ~/TELESCOPE and make the ntupla (pede-DD-MM-YYYY.ntu) with ./telentumaker.exe
  9. DO EQUALIZATION RUN: re-connect arn cable on AND1 and habilit 2nd channels on AND1 and AND2, then start (on lnxams2) a 2-hours run at HVL named: 1equII-NNN-DD-MM-YYYY.dat (where II=order number, NNN=ams number, DD=day, mm=month, YYYY=year)
  10. copy equalizzation run on lnxams1 (user daq), into ~/TELESCOPE directory
  11. connect as user daq on lnxams1, go in dir ~/TELESCOPE and make the ntupla (1equII-NNN-DD-MM-YYYY.ntu) with ./telentumaker.exe
  12. analize the ntupla 1equII-NNN-DD-MM-YYYY.ntu with the macro anatele.kumac (using the right pedestal ntupla): the macro print on screen the values required by the equalization program
  13. go in dir ./UTILITY and run equalizz.exe to find HVeq for the 4 PMs (using the printed values)
  14. if needed, repeat equalization run (2equII-NNN-DD-MM-YYYY.dat, 3equ...) until the anode (acn, acp) MOP are around 50pC.
  15. DO PRODUCTION RUN: on lnxams2 start a 1-night run at HVeq named: prodII-NNN-DD-MM-2004.dat
  16. copy PROD run on lnxams1 as user daq into /home/daq/TELESCOPE and make the ntupla
  17. make another pedestal run (see step 5); copy it on lnxams1 as user daq into /home/daq/TELESCOPE and make the ntupla
  18. on lnxams1 archive data files using the script ./comapctData.sh (updating the file registro_conters_story.txt)
  19. do the analysis (see below)


Standard steps for data analysis

  1. connect as user daq on lnxams1 and go to dir ~/TELESCOPE
  2. run anatele.kumac passing the ntuples prodII-NNN-DD-MM-2004.ntu and pede-DD-MM-YYYY.ntu
  3. print file prodII-NNN-DD-MM-YYYY.ps with all the analysis results. You have to print the following pages:
    1,...,4; 14; 24,...,42; 52,...,64; 74,75; 93,94
  4. archive the files using ./archivia.sh

    Counter analisys plots

      The poscript file prodII-NNN-DD-MM-YYYY.ps contains the pages relative to the following plots:

      1,2: COUNTER pedestals
      3,4: COUNTER dynodes charge spetra, at the center of the counter
      14: COUNTER attenuation length (side p) + fit
      24: COUNTER attenuation length (side n) + fit
      25: COUNTER attenuation lengths (side n + side p) + exponentail fit
      26: COUNTER attenuation lengths (side n + side p) + parabolic fit
      27: COUNTER photostatistic
      28: COUNTER time dispersion time%x (without corrections)
      29: COUNTER light velocity (before corrections)
      30: COUNTER intrinsic time resolution (before slewing correction, but velocity corrected)
      31,32,33: corrections to COUNTER side p (light vel + slew)
      34: COUNTER time side p corrected
      35,36,37: corrections to COUNTER side n (light vel + slew)
      38: COUNTER time side n corrected
      39: COUNTER time dispersion time%x (with corrections)
      40: COUNTER light velocity after corrections
      41,42: COUNTER intrinsic time resolution with light velocity and slewing corrections
      52: COUNTER slices intrinsic time resolution vs x, with light vel and slew corrections
      53: REF time dispersion time%x (without corrections)
      54: REF light velocity (before corrections)
      55: REF intrinsic time resolution (before slewing correction, but velocity corrected)
      56,57,58: corrections to REF side p (light vel + slew)
      59: REF time side p corrected
      60: REF side n time (light vel corrected)
      61: REF time dispersion time%x (with corrections)
      62: REF light velocity after slewing corrections
      63: REF intrinsic time resolution with light velocity and slewing corrections
      64: REF comparison between intrinsic time resolution before and after slew correction (light vel corrected)
      74: REF slices intrinsic time resolution vs x, with light vel and slew corrections
      75: REF Mean Time
      93: TOF resolution (COUNT-REF) vs. position (slices)
      94: TOF resolution (COUNT-REF) integrated on all counter length