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    User name R.

    Log entry time Feuerbach

    Entry number 16:07:12 on September 13, 2004

    keyword=S2's trigger timing adjusted
    Timing adjustment

    A first-pass was made to better-align the timing of the trigger-signals from different the paddles in S2 on the LeftHRS. The cosmic run 1818 was analyzed, and the different timing of the S1 paddles was examined vs. the S2 paddle that formed the trigger.

    The following table shows the measured offsets from paddle 10 (the slowest), and the delay (via cable) added to the paddle. The signal for paddle 10 was "sped up" by replacing a 1ns cable by a 0.5ns cable.
    PaddledT(ns)Applied delay (ns)
    13.53
    22.12
    32.32
    41.81
    52.62
    61.11
    72.82
    81.41
    91.11
    10 - "-0.5"
    111.61
    120.70
    132.42
    141.61
    151.71
    160.50