ALICE ITS3 discussion

Wednesday 11 Jan 2023, 11:00 → 13:00 Europe/Rome

Aula Wick

1 Timing resolution analysis method

Speaker: Bong-Hwi Lim (Istituto Nazionale di Fisica Nucleare)

[ITS3-WP3]-DCFD_update.pdf

CAEN AN3251_Time_Mes_CAEN_Digitizer.pdf

dCFD_paper.pdf

Update_APTS-OA_TestBeamData_Analysis2.pdf

• CFD method
  • The analysis method is in a stable state.
    • Shared with Miko and confirmed the current definitions
  • Current definitions:
    • Baseline: t_0 - 17.5 ns ~ t_0 - 15 ns (2.5ns range)
    • Underline: t_0 + 21.25 ns ~ t_0 + 22.5 ns (1.25 ns range)
  • Keep it as a main reference.
• Digital CFD (dCFD) method
  • Studied with 3 different parameters (k, d, L)
  • Conclusion: Impossible to select parameters in this method.
• Discussion:
  • dCFD method - it looks like it was used when the signal has always the same properties (amplitude, fall time, width ...).
    • Our case is not like that.
    • In this case, we have to study about this method:
      • Is it really used only for the constant signal?
      • Can dCFD method be improved if we split the signal width (fall time)?

 

2 Gain calibration

Speaker: Stefania Perciballi (Istituto Nazionale di Fisica Nucleare)

Gain Correction.pdf

3 Test beam track reconstruction

Speaker: Chiara Ferrero (Istituto Nazionale di Fisica Nucleare)

4 Discussion

Speakers: Stefania Beole' (Istituto Nazionale di Fisica Nucleare), Umberto Savino (Istituto Nazionale di Fisica Nucleare)