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    User name Boeglin

    Log entry time 00:01:03 on April25,2006

    Entry number 171834

    keyword=Shift summary

    start shift scanning beam position and observing current drawn in wire chambers. See entry 171786.
    16:23 start run 4194 with new setting, Compton not working because the rates are too high
    17:36 end run 4194 (1.3M) start new run 4195
    17:50 problems in the accelerator, ni beam => end run 4195
    18:04 start run 4196. Compton rate better, start run 13514
    19:21 end run 4196. New BB thresholds
    20:26 end of tun 4197
    20:27 reduce raster to 1.5x1.5 mm (2.4x2.4 MCC setting) and beam current to 7 mua
    start run 4198
    20:50 end run 4198
    ask for 2.5x2.5 mm beam spot at the target (4x4 MCC settings)
    20:54 start run 4199
    21:09 end run 4199 ask for 3.5x3.5 beam spot size (5.6x5.6 MCC setting)
    21:11 start run 4200
    21:26 end run 4200, set beam spot back to 2.0x2.0 mm (3.2x3.2 MCC setting) start normal production run 4201, Happex 7481 and Compton 13515
    22:28 end run 4201 start run 4202
    22:43 interrupt beam for a short time to carry out NMR measurement
    22:44 continue run
    23:40 end run 4202 start run 4203