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    User name xqian

    Log entry time 06:14:28 on January 16, 2009

    Entry number 256303

    Followups:

    keyword=Check of the Dead time

    I compared two runs for the dead time calculation. The bottom line is the change of BigBite side is not significant. We can keep the Gas Cerenkov on.

    0. RUN 5203 bbite

    1 3200 115848 443697059 0.836

    2 430 137222 70655013 0.835

    3 80 125844 11790807 0.854

    4 16777215 0 203768 0.000

    5 1 331123 398702 0.831

    6 350 251035 104122199 0.844

    7 65535 0 -2059765750 0.000

    8 100 41657 4066892 1.024

    1. RUN 5201 bbite

    1 3200 116106 446153668 0.833

    2 430 139067 71532931 0.836

    3 80 125803 11824021 0.851

    4 16777215 0 202634 0.000

    5 1 331275 400657 0.827

    6 350 252473 104826458 0.843

    7 65535 0 1326761676 0.000

    8 100 38440 3810613 1.009

    2. RUN 5121 bbite

    1 3200 115251 438482163 0.841

    2 430 140906 72071605 0.841

    3 80 122364 11437927 0.856

    4 16777215 0 191722 0.000

    5 1 330174 395793 0.834

    6 350 254445 104979524 0.848

    7 65535 0 1468730274 0.000

    8 100 39647 3876531 1.023

    3. RUN 5121 Left

    1 3200 115251 437261821 0.843

    2 430 140906 71876645 0.843

    3 80 122364 11408686 0.858

    4 16777215 0 191956 0.000

    5 1 330174 394644 0.837

    6 350 254445 104707898 0.851

    7 65535 0 1257950349 0.000

    8 100 39647 3867553 1.025



    A copy of this log entry has been emailed to: jiang@jlab.org