Jefferson Lab HALL A Logbook for September 99 - All EXCEPT Automatic Entries

  • Main INDEX

    Thursday

  •  27368 09/30/99 23:45  M. Liang       FPP HV off. Coda crash

  •  27366 09/30/99 23:27  M. Liang       Started Run for LD2 with radiator in

  •  27365 09/30/99 23:13  Perdrisat      target incident (harmless)

  •  27356 09/30/99 22:33  M. Liang       MCC testing high current

  •  27354 09/30/99 21:57  M. Liang       He flow back to normal

  •  27353 09/30/99 21:36  Churchwell     HIRESXT20 problem

  •  27352 09/30/99 20:24  Churchwell     Helium flow alarms in spectrometers

  •  27351 09/30/99 19:28  M. Liang       He flow of Quads are too low

  •  27350 09/30/99 17:27  R. Michaels    super datamon

  •  27348 09/30/99 16:34  krishniw       FPP HV change

  •  27347 09/30/99 16:30  krishniw       shift activity

  •  27342 09/30/99 09:40  gilman         large FPP th/phi front events

  •  27340 09/30/99 07:39  Nilanga        Optics checks

  •  27339 09/30/99 02:47  x jiang        magnet screen at run 1899

    • Wednesday

  •  27337 09/29/99 23:55  R Roche        shift summary 16:00-24:00

  •  27323 09/29/99 18:51  R. Michaels    Dead Bell in Datamon

  •  27318 09/29/99 18:26  R Roche        update on spectrometers

  •  27306 09/29/99 14:43  gilman/mitch   more on FPP hardware

  •  27303 09/29/99 12:02  gilman/diete   fpp hardware check

  •  27300 09/29/99 10:03  saha           Arc Energy measurement, Sept 22, 1999

  •  27299 09/29/99 07:52  x jiang        maintenance day.

  •  27298 09/29/99 00:02  R Roche        Target Status 16:00-24:00

    • Tuesday

  •  27296 09/28/99 16:28  W.Xu           Target situation in Maintenance day

  •  27292 09/28/99 16:22  bogdanw        HA  PMT

  •  27291 09/28/99 12:15  deurpam        eP offline analysis result

  •  27290 09/28/99 11:12  gilman         more background study, with cosmics

  •  27287 09/28/99 00:20  x jiang        t 0:15, ended last run, run  1876 of this shift.

    • Monday

  •  27285 09/27/99 23:58  M. Liang       Swing shift summary

  •  27283 09/27/99 23:16  M. Liang       Beam off

  •  27280 09/27/99 23:06  M. Liang       Currnt dropping towards 3muA

  •  27276 09/27/99 18:50  M. Liang       radiator out, 2H target in

  •  27270 09/27/99 15:54  Huber          Day Shift Summary

  •  27264 09/27/99 13:56  Huber          Beam Polarization Changed

  •  27262 09/27/99 13:26  Eugene         Moller results

  •  27261 09/27/99 10:44  R. Michaels    How to diagnose DAQ (NEW)

  •  27256 09/27/99 07:56  Z. Chai        Owl Shift Summary

  •  27253 09/27/99 07:18  Z. Chai        Beam Current

  •  27239 09/27/99 01:38  Z. Chai        VDC Status

  •  27238 09/27/99 00:06  R. Michaels    trigger checks

    • Sunday

  •  27236 09/26/99 23:39  gilman         shift summary - 9/26/1999 swing shift

  •  27232 09/26/99 20:23  gilman         beam current since noon fix

  •  27231 09/26/99 19:58  R. Michaels    RE: DAQ hangup

  •  27229 09/26/99 19:33  gilman         coda crash?

  •  27216 09/26/99 16:01  Huber          Day shift summary

  •  27207 09/26/99 10:41  Huber          Oscillation in Beam Intensity

  •  27201 09/26/99 07:55  Z. Chai        Owl Shift Summary

    • Saturday

  •  27185 09/25/99 23:23  C.F. Perdris   chopper ok

  •  27184 09/25/99 23:17  C.F. Perdris   background continued

  •  27183 09/25/99 22:08  meziani        no beam

  •  27182 09/25/99 20:25  meziani        Beam tune

  •  27181 09/25/99 20:08  meziani        Beam spot size

  •  27180 09/25/99 19:52  meziani        Beam back

  •  27178 09/25/99 19:01  Z.-E. Mezian   No beam for tuning

  •  27176 09/25/99 17:15  Z.-E. Mezian   Recesiation-followup

  •  27174 09/25/99 16:50  Z.-E. Mezian   Recesiation of the crystal

  •  27172 09/25/99 15:55  Huber          Day shift summary

  •  27168 09/25/99 13:16  gilman         statistics goals / run times

  •  27166 09/25/99 10:02  gilman         background thoughts

  •  27162 09/25/99 07:56  S. Strauch     beam current overview

  •  27161 09/25/99 07:55  Z. Chai        Owl Shift Summary

  •  27156 09/25/99 06:35  Z. Chai        H-Arm Z Target

  •  27137 09/25/99 00:00  M. Liang       Swing shift summary

    • Friday

  •  27134 09/24/99 23:49  R. Michaels    RE:  CODA problems

  •  27133 09/24/99 23:19  M. Liang       Pedestal runs

  •  27130 09/24/99 23:09  M. Liang       coda problem

  •  27123 09/24/99 21:47  C.F. Perdris   background analysis

  •  27122 09/24/99 20:59  M. Liang       beam current drop fast

  •  27121 09/24/99 20:56  M. Liang       shift check list

  •  27114 09/24/99 16:55  M. Liang       radiator in,2H target in

  •  27110 09/24/99 16:24  M. Liang       radiator out

  •  27108 09/24/99 16:01  Huber          Day Shift Summary

  •  27104 09/24/99 13:36  R. Michaels    ROC14 and other DAQ crashes

  •  27100 09/24/99 11:47  Eugene         Moller results

  •  27091 09/24/99 07:54  Z. Chai        Owl Shift Summary

  •  27081 09/24/99 04:31  Z. Chai        ROC 14 problem

  •  27080 09/24/99 04:03  Z. Chai        Spot Check

  •  27078 09/24/99 03:12  Z. Chai        Spot Check

  •  27066 09/24/99 00:04  M. Liang       swing shift summary

    • Thursday

  •  27064 09/23/99 23:57  punjabi        status of detectors  when started after energy change

  •  27063 09/23/99 23:46  M. Liang       beam away

  •  27061 09/23/99 23:26  M. Liang       2H target in position

  •  27055 09/23/99 22:53  M. Liang       6% radiator in

  •  27054 09/23/99 22:43  deurpam        eP online result.

  •  27053 09/23/99 21:21  M. Liang, A.   ep measurement started

  •  27052 09/23/99 17:42  M. Liang       no beam

  •  27051 09/23/99 16:21  gilman         shift summary

  •  27049 09/23/99 15:45  M Jones        Wien filter

  •  27048 09/23/99 14:36  Jack           Hadron HVAC is running.

  •  27047 09/23/99 09:09  deurpam        eP measurement result

  •  27038 09/23/99 07:59  S. Strauch     Owl shift summary

  •  27025 09/23/99 05:25  S. Strauch     low beam current

  •  26996 09/23/99 00:02  M. Liang       Swing shift activities

    • Wednesday

  •  26993 09/22/99 23:55  M. Liang       radiator out

  •  26989 09/22/99 23:22  M. Liang       6% radiator in

  •  26988 09/22/99 23:20  M. Liang       1.5"+3" Carbon door in

  •  26958 09/22/99 17:42  M. Liang       radiator out

  •  26957 09/22/99 17:31  M. Liang       Earm set. start arc measurement

  •  26956 09/22/99 17:15  M. Liang       Controlled access finished.

  •  26955 09/22/99 17:12  M. Liang       1.5" carbon door in. empty target in position.

  •  26954 09/22/99 16:52  M. Liang       acitivities: finished C(e,e), moving E,Harm

  •  26947 09/22/99 16:15  gilman         9-22 day shift summary

  •  26942 09/22/99 13:54  deurpam        eP energy measurement

  •  26941 09/22/99 12:20  gilman         e-arm angle change not documented last evening

  •  26933 09/22/99 09:14  M JOnes        Checks of harps

  •  26930 09/22/99 08:35  M Jones        Checked fpp current and gas flow

  •  26929 09/22/99 08:02  S. Strauch     owl shift summary

  •  26910 09/22/99 00:07  M. Liang       swing shift summary

    • Tuesday

  •  26909 09/21/99 23:55  M. Liang       ROC 14 needs reboot

  •  26907 09/21/99 23:18  M. Liang       Beam away for 20 minutes

  •  26902 09/21/99 21:29  V. Punjabi     difference in number of zeros between LH2 and LD2 runs

  •  26899 09/21/99 20:09  M. Liang       low efficiency due to background?

  •  26896 09/21/99 20:01  M. Liang       gammap_online.kumac

  •  26892 09/21/99 18:22  M. Liang       low effieciency

  •  26889 09/21/99 17:49  M. Liang       beam back

  •  26888 09/21/99 17:44  M. Liang       low effieciency in FPP and VDC?

  •  26884 09/21/99 16:04  gilman,chen,   day shift summary

  •  26875 09/21/99 13:32  gilman         polarized beam current

  •  26868 09/21/99 11:44  gilman         hadron spectrometer adjusted

  •  26867 09/21/99 11:31  Eugene         Moller measurement

  •  26866 09/21/99 11:28  jpchen         cryotarget ioc reboots

  •  26865 09/21/99 11:25  jpchen         LD2 is set to be ready for beam

  •  26856 09/21/99 08:13  Fox,Jones,Ga   Shift Summary - 09/21/99 - Owl

  •  26850 09/21/99 07:22  Fox            FPP voltages raised again

  •  26849 09/21/99 07:21  Fox            Configuration for Q2=0.3486 (e,ep) elastic data

  •  26844 09/21/99 06:03  Fox            Beam Spot off center for runs 1700 thru 1702, fixed during 1702

  •  26840 09/21/99 05:18  Fox            Errata for Start run entry for run 16999

  •  26835 09/21/99 04:12  M Jones        Downloaded trigger for 0.514 proton momentum

  •  26834 09/21/99 04:12  Fox            Settings for elastic (e,p) on H, Q2=0.246887

  •  26833 09/21/99 04:09  Fox            Raised FPP HV due to lowish efficiency

  •  26825 09/21/99 02:07  Fox            Beam spot is (2,4) instead of (2,2)

  •  26817 09/21/99 00:58  M Jones        checked gas flow

  •  26816 09/21/99 00:57  M Jones        checked fpp currents

    • Monday

  •  26814 09/20/99 23:56  M. Liang       Carbon door closed, ready to take ep elastic data

  •  26813 09/20/99 21:27  M. Liang       optimistc estimate: beam by midnight

  •  26812 09/20/99 19:06  M. Liang       a piece of paper found in Hall B line

  •  26811 09/20/99 18:18  M. Liang       No beam for at least next 3 hours.  MCC need access to the tunnel

  •  26810 09/20/99 16:52  M. Liang       beam permit

  •  26809 09/20/99 16:48  R Roche, M.    No beam

  •  26807 09/20/99 15:17  krishniw       Receciation

  •  26806 09/20/99 14:53  gilman         beam imminent, carbon doors reset

  •  26803 09/20/99 09:19  gilman         gas for phototubes

    • Sunday

  •  26798 09/19/99 22:01  gilman         gas to phototubes

  •  26795 09/19/99 16:09  kuss           target chamber vacuum

  •  26791 09/19/99 15:11  Calarco        shift summary and prognosis

  •  26790 09/19/99 12:35  kuss           still no beam

    • Saturday

  •  26787 09/18/99 20:40  Perdrisat      update on beam

  •  26786 09/18/99 19:53  Perdrisat      beam expectation

  •  26785 09/18/99 18:32  Perdrisat      carbon door

  •  26782 09/18/99 16:49  Calarco        shift summary

  •  26780 09/18/99 10:57  M Jones        fixed fpp_det.kumac

  •  26779 09/18/99 08:01  Z.-E. Mezian   Target chamber vacuum

  •  26777 09/18/99 07:31  R. Michaels    detector checks, more cosmics

  •  26774 09/18/99 03:38  R. Michaels    status, detector checks

  •  26773 09/18/99 01:02  fox            Problem with hadron aerogel ADC 12

    • Friday

  •  26772 09/17/99 23:24  D. Margaziot   No beam

  •  26769 09/17/99 22:44  gilman         e-arm HV off

  •  26768 09/17/99 16:56  x. jiang       checked the radiator movement

  •  26767 09/17/99 16:54  x. jiang       fpp and vdc voltages checked.

  •  26766 09/17/99 16:51  x jiang        fpp hv channels.

    • Wednesday

  •  26761 09/15/99 12:42  R. Michaels    H+,H- rates ok

  •  26760 09/15/99 11:27  R. Michaels    end-run H+/- rates strange

  •  26756 09/15/99 00:54  R. Michaels    VDC efficiency - cosmics

    • Tuesday

  •  26755 09/14/99 22:47  folts          magic

  •  26753 09/14/99 15:22  R. Michaels    ROC1 power supply bad

  •  26750 09/14/99 10:07  K. Aniol       target temperature excursion

    • Monday

    

    Sunday
    

    

    Saturday
    

    

    Friday
    

    

    Thursday
    

  •  26715 09/09/99 12:27  R. Michaels    DAQ mods, etc.

    • 

    Friday
    

  •  26714 09/03/99 20:20  R. Michaels    linux versio - halog

  •  26713 09/03/99 20:19  R. Michaels    HP-UX test

  •  26712 09/03/99 20:18  R. Michaels    halogentry test

  •  26698 09/03/99 16:11  R. Michaels    run 1485 recovered

    • 

    Wednesday
    

  •  26693 09/01/99 01:09  kuss           ARC PMT's

  •  26692 09/01/99 00:03  R Roche        Shift summary

    •