• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name Gao

    Log entry time 08:04:05 on March 4,2009

    Entry number 264527

    keyword=Owl Shift Summary

    STart kinematcs A N2 reference cell run. (0.6 GeV on left hrs)
    00:32am move target to polarized 3He and asked for 15uA


    RUN 20512 Start at 00:16am N2 reference cell run wrong prescale on T3
    RUN 20513 Start at 00:18am N2 reference cell prescale on T3 is 3 800 k
    RUN 20514 00:26 am N2 referecen cell prescale on T3 is 3 422k
    RUN 20517 00:37 am 3He cell perscale on T3 is 2
    RUN 20518 1:05 am 3He cell same as above
    Run 20519 1:14 am same as above
    Run 20520 1:28 am
    Run 20521 1:35 am
    Run 20522 1:43 am
    2:04 completed Left arm momentum change to 1.27 GeV/c
    Run 20523
    3:00 am target NMR measurement
    Run 20524
    3:55 changed Left Arm Momentum to 1.13 GeV/c
    4:00 started run 20525
    5:30 ended run 20526
    changed left arm momentum to 0.9 GeV/c
    5:51 started run 20527
    run 20528
    6:50 called MCC for controlled access for polarity change

    **************************************************************88
    BigBite RUN

    Still run 1962 on N2. 5M
    RUN 1963 polarized 3He run, dead time 17% 5M
    Run 1964 .... 5 M
    Run 1965 ..... 5 M
    Run 1966 .......5 M
    Run 1967 ........5 M
    Run 1698 .......5 M
    Run 1699 short run due to BB chamber trip and loss of beam
    Run 1700 5 M events
    Run 1701 ~ 1 M

    Smoothly data taking most of the shift