Jefferson Lab Hall C Logbook for February 11 - Compton

  • Main INDEX

    Monday

    

    Sunday
    

    

    Friday
    

  • 222082 02/25/11 23:16  V. Tvaskis     Compton: Beam Polarization

  • 222037 02/25/11 07:17  narayan        Compton: Compton ROC0, ROC1, ROC2 and NIM crate has been powered down

  • 222011 02/25/11 03:26  narayan        Compton: e-detector lowered 

    • 

    Thursday
    

  • 221920 02/24/11 13:58  gaskell        Compton: updated cavity power EPICS calibration

  • 221894 02/24/11 09:26  dalton         Compton: Cavity power signal strength halved

  • 221840 02/24/11 01:44  wdconinc       Compton: Automatic disk cleanup disabled

    • 

    Wednesday
    

  • 221802 02/23/11 20:36  wdconinc       Compton: HAPPEx timing board in vmec8

  • 221792 02/23/11 19:24  wdconinc       Compton: Runs 21000 and later not going to tape

  • 221787 02/23/11 19:19  wdconinc       Compton: cdaql3 (R.I.P.) was our data tracker

  • 221751 02/23/11 17:11  gaskell        Compton: photon detector wiring changes

  • 221732 02/23/11 16:17  wdconinc       Compton: HV trip, recovered

  • 221707 02/23/11 12:29  wdconinc       Compton: Changed photon event trigger prescaler

  • 221696 02/23/11 11:21  dalton         Compton: strange snapshots

  • 221693 02/23/11 10:46  dalton         Compton: scaler trigger rate change with DAQ state?

  • 221687 02/23/11 10:29  dalton         Compton: Lots of pedestal data

    • 

    Tuesday
    

  • 221575 02/22/11 22:00  wdconinc       Compton: Run 20974 was restarted...

  • 221573 02/22/11 21:38  dalton         Compton: Possible bug in auto analyser

    • 

    Monday
    

  • 221351 02/21/11 20:04  donjones       Compton: correlation between background and photon detector rates quadratic

  • 221327 02/21/11 16:51  donjones       Compton: no apparent correlation between backgrounds and position drifts in IPM3H04

  • 221316 02/21/11 14:50  wdconinc       Compton: Automatic backed-up data removal when necessary

  • 221227 02/21/11 00:48  wdconinc       Compton: Removed old data files that are on silo

    • 

    Sunday
    

  • 221120 02/20/11 12:18  dalton         Compton: FADC yield structures

  • 221104 02/20/11 10:56  dalton         Compton: labview laser control program crash

    • 

    Saturday
    

  • 221034 02/19/11 23:30  dalton         Compton: Changes to the crl

  • 221008 02/19/11 20:59  dalton         Compton: Changed HV to 1700 V

  • 221000 02/19/11 20:20  dalton         Compton: ROC1 crash act 1, scene 3

  • 220996 02/19/11 20:09  dalton         Compton: ROC1 crash act 1, scene 2

  • 220994 02/19/11 20:01  dalton         Compton: ROC1 crash in the act

  • 220985 02/19/11 19:22  dalton         Compton: Restarting CODA

  • 220980 02/19/11 18:47  gaskell        Compton: DAQ crash screen shots

  • 220967 02/19/11 16:33  brads          Compton: DAQ ROC1 issues

  • 220898 02/19/11 10:38  silwal         Compton: DAQ hung up again, ROC1 issues

  • 220891 02/19/11 10:26  silwal         Compton: compton DAQ running now

  • 220880 02/19/11 10:01  silwal         Compton: compton DAQ issues

    • 

    Friday
    

  • 220751 02/18/11 17:59  donjones       Compton: coda keeps crashing due "unresponsive component"

  • 220741 02/18/11 17:24  narayan        Compton: edetector lowered @8.69 from Home

  • 220736 02/18/11 17:05  donjones       Compton: lowest background rates I've seen

  • 220687 02/18/11 02:18  narayan        Compton: e-detector parked for now

    • 

    Thursday
    

  • 220684 02/17/11 21:08  gaskell/donj   Compton: flipper mount replaced

    • 

    Wednesday
    

  • 220645 02/16/11 21:49  wdconinc       Compton: Silo copy/back-up is current again

  • 220641 02/16/11 19:30  wdconinc       Compton: DAQ tests -> does sync assert L1A?

  • 220635 02/16/11 17:57  brads/wdconi   Compton: Gb eth card in ccomptl1

    • 

    Tuesday
    

  • 220542 02/15/11 22:06  gaskell        Compton: ROC 1 again

  • 220536 02/15/11 21:33  donjones/gas   Compton: cpslow replaced

  • 220516 02/15/11 19:27  wdconinc       Compton: None of the Compton data files backed up since Jan 18...

  • 220462 02/15/11 09:33  gaskell        Compton: likely related to QDC

  • 220451 02/15/11 08:20  Darko          Compton: Compton problem from last evening is unsolved

    • 

    Monday
    

  • 220388 02/14/11 23:58  jhlee          Compton: ROC1 is dead

  • 220381 02/14/11 23:16  jhlee          Compton: DAQ crashed, restarted

  • 220366 02/14/11 21:22  wdconinc/dal   Compton: some more pictures

  • 220365 02/14/11 21:10  dalton/wdcon   Compton: FADC versus QDC

  • 220324 02/14/11 16:43  gaskell        Compton: backgrounds more stable

  • 220278 02/14/11 11:02  wdconinc       Compton: Please add some information/screenshots when CODA crashes

  • 220185 02/14/11 01:58  narayan        Compton: e-detector positioned ~ 4 mm from beam

    • 

    Sunday
    

  • 220113 02/13/11 18:24  narayan/tvas   Compton: preparing to lower edet

  • 220094 02/13/11 15:59  wdconinc       Compton: Autoanalyzer first pass analysis scripts re-enabled

  • 220075 02/13/11 14:22  wdconinc       Compton: Connected signal to QDC before run 20837

  • 220072 02/13/11 14:13  wdconinc       Compton: eDet CODA working again

  • 220034 02/13/11 10:23  narayan        Compton: e-detector AFECS issues

  • 220024 02/13/11 09:14  gaskell        Compton: laser locked and cycling

    • 

    Saturday
    

  • 219963 02/12/11 23:01  narayan        Compton: stopped this run because we found the laser was off

  • 219925 02/12/11 17:22  gaskell        Compton: all runs taken so far with 1550 v

  • 219880 02/12/11 11:44  gaskell        Compton: stable signal and background

  • 219875 02/12/11 11:10  donjones       Compton:overnight running shows no signal

    • 

    Friday
    

  • 219812 02/11/11 22:11  gaskell        Compton: large loss at A2 was good for Compton

  • 219809 02/11/11 21:59  gaskell        Compton: photon detector discriminator

  • 219805 02/11/11 21:30  gaskell        Compton: good rate follow up

  • 219800 02/11/11 21:20  gaskell        Compton: rates good ever so briefly

  • 219796 02/11/11 20:25  gaskell        Compton: removed some photon detector shielding

  • 219753 02/11/11 15:49  wdconinc       Compton: Switched to a different afecs version

    • 

    Thursday
    

  • 219541 02/10/11 15:21  gaskell        Compton: rebooted cpslow

  • 219540 02/10/11 15:20  gaskell        Compton: bypassed photon detector amplifier

    • 

    Wednesday
    

  • 219324 02/09/11 18:15  wdconinc       Compton: Fast counting photon DAQ with helicity

  • 219258 02/09/11 09:55  donjones       Compton: run 20807 junk -- coda crashed

    • 

    Tuesday
    

  • 219173 02/08/11 23:38  narayan        Compton: No need to run compton DAQ during upcoming Owl

  • 219092 02/08/11 15:09  gaskell        Compton: changed discriminator threshold to 100 mV

  • 219081 02/08/11 14:13  donjones       Compton: no signal plugged in for run 20799

  • 219056 02/08/11 12:22  gaskell        Compton: reboot cpslow

  • 219055 02/08/11 12:21  gaskell        Compton: amplifier for photon detector

    • 

    Monday
    

  • 218932 02/07/11 20:06  wdconinc       Compton: Compton: event mode DAQ now working

  • 218924 02/07/11 19:28  donjones       Compton: pulser closer to 100kHz

  • 218774 02/07/11 02:37  wdconinc       Compton: event mode DAQ prospects

  • 218760 02/07/11 01:16  wdconinc       Compton: ext trig FADC timed in, up to 3 kHz

    • 

    Sunday
    

    

    Saturday
    

    

    Friday
    

    

    Thursday
    

  • 218105 02/03/11 13:53  narayan        Compton: HV status

  • 218103 02/03/11 13:37  narayan        Compton: all scintillators turned Off

  • 218072 02/03/11 09:31  gaskell        Compton: quit all processes on cpslow

  • 218048 02/03/11 01:49  michaelm       Compton: Hall C laser phase adjusted +2.6 degrees

    • 

    Wednesday
    

  • 218009 02/02/11 22:28  wdconinc       Compton: Events timed in for QDC and FADC

    • 

    Tuesday
    

  • 217804 02/01/11 23:25  donjones       Compton: pull beam out of chicane if cComptScintRateNorm>5000Hz/uA