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    User name Howell

    Log entry time 16:00:40 on April16,2006

    Entry number 170948

    keyword=Day shift summary

    08:45 Half wave plate moved in, started run 3981
    09:00 MCC reported a beam trip, said beam would be down for 20 minutes.
    10:03 Took neutron cosmics run, run number 3982
    10:12 Run 3983 is junk (accidentally started another neutron cosmics run and then ended it.)
    10:19 Beam is back, started run 3984 on production data again.
    11:35 Started raster scan. Changed to 2.5x2.5mm raster for run 3985
    11:51 Changed to 3.0x3.0mm raster for run 3986
    12:09 Changed back to 2.0x2.0mm raster. Started run 3987
    12:36 Compton photon background rates are high. Called MCC and asked them to look into it.
    13:17 Compton photon background is much better now... down to approx. 100 Hz/uA
    13:27 NMR measurement.
    13:32 Started run 3988.
    13:52 MCC called, and said that due to problems with the cryogens the beam will have to be shut down for a few days.
    15:13 The cryogen problems are in the end station refrigerators only, so production running can continue. Started run 3990.
    15:44 Stopped run, because Gary arrived to put the HRS magnets into warm return. Asked MCC for controlled access.