• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name M.Shabestari

    Log entry time 00:03:15 on June 3,2008

    Entry number 240848

    keyword=Swing Shift Summary

    Swing shift summary June 2, 2008

    SL : Mitra Shabestari
    TO : Chiranjib Dutta
    3rd : Elena Long


    Summary
    ========

    Kinematics 8

    BigBite = 50 degrees,
    LHRS = 43.5 degrees, LHRS momentum = 0.8949 GeV/c

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    16:00 Shift started. Run# 1823 has already started.

    Target: 6 cm LH2
    Beam current: 21 uA


    ----------> Run# 1823 ; events = 5 M
    16:34 ----> Run# 1824 ; events = 0.7 M
    16:41 ----> Called MCC and asked them to adjust the beam position,since it was off
    (BPMA: Y was 0.8 insted of 1.2 & BPMB: X was -2.3 instead of -1.8).
    MCC informed us that they have software problem, and fixing the problem
    would take about 30 minutes. No beam for a while. Stopped run 1824.

    17:05 ----> Beam is back. BPMs look OK. We continue taking production data.
    17:06 ----> Run# 1825 ; events = 5 M
    17:53 ----> Run# 1826 ; events = 2.9 M
    18:20 ----> HV tripped. I turned the HV back on. Stopped the run.Everything looks fine now.
    We contiue taking data.
    18:25 ----> Run# 1827 ; events = 5 M
    19:11 ----> Run# 1828 ; events = 5 M
    19:58 ----> Run# 1829 ; events = 5 M
    20:56 ----> Run# 1830 ; events = 2.4 M
    21:31 ----> HV tripped due to beam trip.We stopped the run. I turned the HV back on. .
    21:34 ----> Run# 1831 ; events = 5 M
    22:27 ----> Run# 1832 ; events = 3.3 M
    23:01 ----> MCC called. They had RF trip. No beam for a while.
    23:07 ----> Beam is back.
    23:07 ----> Run# 1833 ; events = 5 M
    23:56 ----> Run# 1834 ;


    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Total # of events before Swing Shift = 32.3 M (Entry 240802)
    Total # of events at the end of Swing Shift = 44.3 M

    -----------------------------------------------------------
    Total number of events for the current Kinematics = 76.6 M
    -----------------------------------------------------------