evidence for swap of 08PC03 < -- > 08PD03

  1. all tests below are performed with a single minB run R5112017 (w/ TPC ), all 200K events are processed each time.
  2. Spectra in each plot are as follows:
    top : 08TB03, 08PB03, 08QB03, 08RB03 <-- reference, working fine , MIP visible with UxV method
    middle : 08TC03, 08PC03, 08QC03, 08RC03
    bottom: 08TD03, 08PD03, 08QD03, 08RD03
    X= ADC - ped , range [-10,150]
    red dashed line shows MIP MPV for towers ('T'-spectra), ignore green lines
  3. Raw spectra, nothing masked out in DB.

    Conclusions:
    all tiles work fine except one.
    Tile 08QC03 has probably probably broken fiber and/or ped jump during this run. It should look like 08QD03 below it.

  4. 08QC03 is masked out. UxV condition is required to select MIP. 2 chan per bin. Spectrum for each tile requires all other pre/post to have values above very low threshold & UxV:
    condition for T spectrum : UxV & P>thr & Q>thr & R>thr
    condition for P spectrum : UxV & Q>thr & R>thr
    condition for Q spectrum : UxV & P>thr & R>thr
    condition for R spectrum : UxV & P>thr & Q>thr

    Conclusion: no MIP is found for both C03 & D03

  5. 08QC03 is masked out and swapped 08PC03 < -- > 08PD03. MIP condition as above.

    Conclusion: MIP is found for both C03 & D03

  6. 08QC03 is NOT masked out and swapped 08PC03 < -- > 08PD03. MIP condition as above.

    Conclusion: MIP is found only in D03 and lost on C03.
    It means non-zero ADC values seen in 08QC03 in the row inclusive spetrum are simply crass talk.

  7. tile 08QC03 have self repered
    Raw spectra nothing masked out in DB. only T,P,Q,R for tower C03 in sector 8 is shown
    R51070005 - bad
    R51090035 - bad
    R51120017 - bad
    R51120018 - bad

    R5117059 - good

    R5118044 - good
    R5120012 - good
    R5134072 - good