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    User name C. Fernandez

    Log entry time 08:03:11 on April24,2006

    Entry number 171720

    keyword=Owl Shift Summary

    23:44/00:56 Run 4162 HAPPEX 7466
    00:59/01:15 Run 4163: 2.5x2.5 raster (7.6x5.3 setting) HAPPEX 7467
    01:17/01:33 Run 4164: 3.0x3.0 raster (9.1x6.4 setting) HAPPEX 7468
    01:35/01:50 Run 4165: 3.5x3.5 raster (10.6x7.5 setting) HAPPEX 7469
    01:52 Beam off
    01:56 NMR measurement; Polarisation: 55.9%
    01:58 Beam on
    02:00/02:54 Run 4166: 2.0x2.0 raster (6.0x4.2 setting) HAPPEX 7470
    02:54 Beam off (MCC)
    02:58 Compoton Polarimeter Run 13506 Stopped
    03:25 Beam on (MCC)
    03:26 Compton polarimeter Run 13507 started
    03:26/04:20 Run 4167 HAPPEX 7471
    04:18 Beam off (MCC)
    04:21 Compton polarimeter Run 13507 stopped
    04:33 Beam on (MCC) Problems with energy spread (see additional logbook entrance)
    04:43 HAPPEX 7472 to check (useless data for experiment)
    04:49 Energy spread problem solved by MCC
    04:50 Compton polarimeter Run 13508 started
    04:50/06:03 Run 4168 HAPPEX 7473 (large Aq, many times over 100)
    06:04/06:20 Run 4169 HAPPEX 7474 ROC25 crashed
    06:25 ROC25 restarted
    06:25/06:41 Run 4170 HAPPEX 7475, NA HV alarm gen_ps1 2004 Run stopped
    06:42 Compton polarimeter Run 13508 stopped
    06:46 Run 4171 ROC4 failed
    06:50 Compton polarimeter Run 13509 started
    06:52/07:31 Run 4172 HAPPEX 7476
    07:30 Beam off
    Target replacement: reference cell (Hydrogen) at 135 psig; cell position 26.69
    07:39 Beam on 7.7 micro amperes
    07:40 Moving the beam position: BPMBx=-1.302 BPMBy=-1.004
    07:44/08:00 Run 4174 HAPPEX 7477 (elastic)