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    User name C. C. Chang

    Log entry time 15:59:15 on October14,2000

    Entry number 50408

    keyword=Day shift summary

    ****** Run Summary ********
    Run # Start Stop # of Events Comments
    1843 07:55 289K Ended earlier due to RF problems
    1844 08:37 215K Ended earlier because raster was
    found too wide (6mm) in x and
    too small in y (3 mm).
    1845-46 Fidding around with raster
    parameters
    1847 09:35 7.8K Ended earlier due to ROC14
    problem
    1848 09:39 10.6K Ended earlier due to Moller quad
    problem
    1849 09:57 10:10 Ended earlier because raster size
    was found to be too narrow and
    too tall (see comments below).
    1850 10:12 11:06 673K First un-interrupted (good) run.
    1851 11:07 12:34 1.02M Ended earlier due to RF problem
    1852 13:30 15:08 1.2M Full good run.
    1853 15:09 301K Ended due to ROC14 problem
    1854 15:44 In progress.


    ******************************************************************
    ***** Additional Comments *******

    08:27 MCC called to inform us of the RF problems. Beam will be off for aboujt
    5 minutes. End Run 1843 earlier.
    08:40 Beam back

    08:40 Noticed that raster size was 6mm in x by ~2 mm in y (as seen with spot++)
    with MCC setting of 3 * 2.5. Called MCC to change their setting to
    2*4
    09:00 ROC14 problems and ROC2 problems
    09:40 Raster size is now 4mm in x by 4mm in y with MCC setting of 2 * 4
    09:45 MCC called to inform us that Moller quad was off. Will restart remotely
    and will get back to us when beam is back.
    09:52 MCC called to try to give us some beam for checking to see if everhthing
    is O.K.
    10:00 MCC called to inform us that beam is restored to 90uA and is ready for
    data taking.
    10:10 During run 1849, we noticed that raster size was about 2mm in x by
    6 mm in y with MCC setting of 2 * 4. We now suspect that the unusual
    MCC setting for raster size in order to get an actual size of 4 by 4 could
    be due to (or couple with) problems in Moller quad. Question is:
    When did this problem happen? Was the raster size bad during last
    graveyard shift? We called MCC to restore raster setting to 3 * 2.5
    and the raster size retored back to 4 by 4. (See HALOG Entry 50396)
    12:30 RF problem. Beam off.
    12:52 MCC called. Lost one module. Beam will be off for at least 30 minutes.
    13:30 Beam is back.
    15:40 ROC 14 problem.