• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name A. Deur

    Log entry time 16:00:40 on September26,2009

    Entry number 291793

    keyword=Day shift summary

    Start the shift with runs 12695 (Happex DAQ) and 19726 (Compton) in progress. IHWP=IN,
    8:15 raster size check: 6*5 mm
    8:33 Run 12695 finished. Start run 12696
    9:30 Run 12696 is done. Begin run 12697
    10:28 Run 12697 is over. Debut of run 12698
    11:01 MCC called: RF trip that need to be recovered "by hand". Beam down for a few min.
    11:05 Beam is back
    11:25 Run 12698 completed. Launching run 12699
    11:46 Run 12699 ended (35561 events). Early end because we are starting low-current (10 uA)Compton test. Initiating run 12700. Nominal current should be 10 uA but might be higher at the beginning of the run (A. Camsonne still closing the slits to bring down the current). Run 12700 is a priori a **non-production** run.
    12:50 Run 12700 terminated. Proceeding with run 12701 (still non-production at 10 uA).
    12:52 MCC called: they have cryo problems. It will takes at least an hour to bring the beam back.
    We halt runs 12701 with only 1713 events.
    13:15 MCC called. Problem is fixed, beam is coming back soon.
    13:21 Beam is back. BPM position and raster size look good.
    13:21 Commencing run 12702. 100 uA, **production run**
    13:36 Discontinuing run 12702 (# events=25979) in order to start the Benesch/McNulty dithering phase advance study.
    13:39-13:57. Run 12703 done for phase advance work. Not a production run.
    14:10 Phase advance study done. Back to 98 uA
    14:11 Go on with run 12704.
    15:07 Run 12704 is over. Kicking off Run 12705.
    No events recorded by run 12705. kcoda and restarted coda.
    run 12705 is **junk**
    15:28 DAQ working fine, run 12706 is underway