• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name R. Michaels

    Log entry time 09:42:40 on June13,2007

    Entry number 205356

    Followups:

    keyword=S0 multiple TDC peaks

    Alex and I worried about the multiple peaks on S0 TDC.
    The "S0.rt" and "S0.lt" are, resp. S0A and S0B which are
    plugged into discriminators. There happens to be signals
    for "or of S1" and "or of S2" in the same discrim, nearest
    to S0B (S0.lt), which we think causes crosstalk, leading
    to the funny peaks. These are 1877 TDCs (0.5 nsec per bit).
    Ths trigger T2 looks relatively clean.

    Alex will try unplugging the S1-or, S2-or signals to see if
    this helps. He is in opportunistic controlled access now.


    FIGURE 1