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    User name danez

    Log entry time 08:16:10 on February 28, 2011

    Entry number 349126

    keyword=Owl Shift Summary

    SL: David Anez
    TO: Pete Markowitz
    3rd: Hovhannes Baghdasaryan

    Owl Shift Summary
    =================
    Plan: HRS Sieve Optics

    Kinematic Settings

    Please note that all times are approximate
    0:00Beam down, waiting for harp scan.
    1:00Beam up, harp scan larger than desired, but unable to get smaller.
    Asked for beam position correction. Ax and Ay not set properly, but MCC will try to correct it.
    Moved to BeO for visual spot inspection. Spot found slightly to the left and above the center of the BeO. Had raster turned on and took spot++ run.
    1:30Spot++ done, moved to 15cm Al dummy to finish +0% sieve optics on left arm.
    Test run to check rates, then 100k events in left arm. BB taking additional events with T6.
    Dummy run done, moved to 4cm LH2 and changed left arm momentum to 1.055 GeV to start -2% sieve optics in left arm, +4% sieve optics in right arm.
    1:45LH2 runs with right (+4%) and left (-2%) arms, with BB.
    2:00LD2 runs with right (+4%) and left (-2%) arms, with BB.
    2:45Carbon optics runs with right (+4%) and left (-2%) arms, with BB.
    3:00Changed right arm momentum to 1.148 GeV to start +2% sieve optics in arm arm, left momentum to 1.055 GeV to start -4% sieve optics in left arm.
    Moved to 4cm LH2 in preparation for sieve optics and Tai's HV scan.
    Let Tai take HV scan runs while right arm momentum settles.
    3:40Tai finished BB HV scan. Starting left arm sieve optics -4% runs.
    4:20Finished left arm sieve optics runs. Right dipole settled, starting right arm sieve optics +2%.
    4:30Removed left arm sieve plate in preparation for Big Bite Optics runs.
    4:50Finished right arm sieve optics +2%, changed momentum to 1.126 GeV/c for +0%.
    Started Big Bite Optics runs with left arm at 1055 MeV, 17.5 degrees and BigBite at 518 A and 68 degrees.
    6:40Finished first round of BB Optics (350 MeV/c), started delta +0% sieve optics runs for right arm.
    7:40Finished +0% sieve optics run for right arm. Changed right arm momentum to 1103 MeV/c.
    7:55Moved left arm to 20.5 degrees.
    8:00Filled in Day Shift on progress.


    Run Events Time [mins] Average Beam Current Deadtime [%] Target Comments
    1987 176767 3 5 28 BeO Spot++, T1 & T3 only
    1988 32157 1 5 44 15cm Al dummy test run for rates
    1989 178807 5 5 27 15cm Al dummy Sieve Optics +0%
    1990 410130 7 2.5 17 4cm LH2 Sieve Optics +4%, Right Arm (w/BB)
    1991 504251 13 2.5 31 4cm LH2 Sieve Optics -2%, Left Arm (w/BB)
    1992 509321 9 2.5 13 4cm LD2 Sieve Optics +4%, Right Arm (w/BB)
    1993 503613 12 2.5 24 4cm LD2 Sieve Optics -2%, Left Arm (w/BB)
    1994 ~500k ~11 5 ? Carbon Optics Sieve Optics +4%, Right Arm (w/BB)
    1995 515831 14 5 36 Carbon Optics Sieve Optics -2%, Left Arm (w/BB)
    1996 185409 3 5 34 4cm LH2 BB HV Scan
    1997 7732 0.2 5 63 4cm LH2 BB HV Scan, aborted run
    1998 204986 3 5 33 4cm LH2 BB HV Scan
    1999 200616 3 5 33 4cm LH2 BB HV Scan
    2000 197558 3 5 34 4cm LH2 BB HV Scan
    2001 195635 3 5 34 4cm LH2 BB HV Scan
    2002 197667 3 5 33 4cm LH2 BB HV Scan
    2003 275761 6 5 5 4cm LH2 Sieve Optics -4%, Left Arm
    2004 258655 4 5 8 4cm LD2 Sieve Optics -4%, Left Arm
    2005 256035 6 5 20 Carbon Optics Sieve Optics -4%, Left Arm
    2006 255220 5 5 12 Carbon Optics Sieve Optics +2%, Right Arm
    2007 309962 5 5 4 4cm LD2 Sieve Optics +2%, Right Arm
    2008 254343 4 5 4 4cm LH2 Sieve Optics +2%, Right Arm
    2009 505250 9 5 17 4cm LH2 Big Bite Optics (350 MeV/c)
    2010 506476 9 5 17 4cm LH2 Big Bite Optics (350 MeV/c)
    2011 508189 9 5 17 4cm LD2 Big Bite Optics (350 MeV/c)
    2012 506000 9 5 17 4cm LD2 Big Bite Optics (350 MeV/c)
    2013 504530 9 5 17 Carbon Optics Big Bite Optics (350 MeV/c)
    2014 526108 10 5 16 15cm Al dummy Big Bite Optics (350 MeV/c)
    2015 514809 9 5 17 4cm Al dummy Big Bite Optics (350 MeV/c)
    2016 521096 10 5 16 BeO Big Bite Optics (350 MeV/c)
    2017 109178 2 10 22 BeO Sieve Optics +0%, Right Arm
    2018 226084 3 10 19 4cm Al dummy Sieve Optics +0%, Right Arm
    2019 263376 2 10 42 15cm Al dummy Sieve Optics +0%, Right Arm
    2020 107299 1 10 36 Carbon Optics Sieve Optics +0%, Right Arm
    2021 106597 1 5 11 4cm LH2 Sieve Optics +0%, Right Arm
    2022 395298 5 5 9 4cm LD2 Sieve Optics +0%, Right Arm
    2023 207673 3 5 8 4cm LH2 Sieve Optics +0%, Right Arm
    2024 222212 4 5 13 Carbon Optics Sieve Optics +0%, Right Arm