Jefferson Lab Hall C Logbook for May 12 - Target

  • Main INDEX

    Thursday

  • 271272 05/31/12 12:27  covrig         Target: position measurements warm/cold/warm

    • Wednesday

    

    Tuesday
    

  • 271214 05/29/12 09:58  covrig         Target: warm position "survey" (the last one)

    • 

    Monday
    

    

    Sunday
    

    

    Saturday
    

    

    Friday
    

  • 271153 05/25/12 13:38  smithg         Target: warming up target for the very last time (sniff sniff)...

  • 271152 05/25/12 12:58  Silviu/Adesh   Target: cold motion measurement

    • 

    Thursday
    

  • 271127 05/24/12 18:00  smithg         Target: starting 15K cooldown

  • 271126 05/24/12 17:37  Adesh          Target: warm gas measurement done

    • 

    Wednesday
    

  • 271081 05/23/12 14:56  Adesh          Target: tripod intact

    • 

    Tuesday
    

  • 270941 05/22/12 09:07  covrig         Target: status of 15K cooldown

    • 

    Monday
    

  • 270926 05/21/12 15:21  smithg         Target: starting 15 K cooldown

  • 270922 05/21/12 12:10  smithg,covri   Target: target cold motion status

    • 

    Sunday
    

    

    Saturday
    

    

    Friday
    

  • 270893 05/18/12 15:52  adesh          Target: cold motion measurement plan

  • 270892 05/18/12 13:55  covrig, smit   Target: boiling off LH2

  • 270866 05/18/12 08:35  dunne          Target: Pump scans

  • 270840 05/18/12 05:23  dunne          Target: Target: screenshots during Owl

  • 270827 05/18/12 04:36  dunne          Target: Changing pump frequencies during the remainder of shift

  • 270824 05/18/12 04:04  dunne          Target: Pump tripped due to pilot error

    • 

    Thursday
    

  • 270771 05/17/12 19:53  alee           Target: Swing shift screenshot

  • 270662 05/17/12 12:05  smithg         Target: disabled low heater power alarms

  • 270560 05/17/12 03:56  covrig         Target: s-harp scans done, moved target to LH2

  • 270558 05/17/12 03:44  covrig         Target: moved target HOME & target screens shot

  • 270501 05/17/12 00:11  covrig         Target: moved to LH2

    • 

    Wednesday
    

  • 270488 05/16/12 22:42  alee           Target: Target moved to HOME

  • 270470 05/16/12 21:06  alee           Target: Moved target to HYDROGEN CELL after energy measurement is done

  • 270469 05/16/12 21:00  alee           Target: Swing shift target screenshots

  • 270452 05/16/12 18:25  alee           Target: Target moved home to HOME in preparation for energy measurement

  • 270406 05/16/12 14:06  rob            Target: more glitches in qw:tempsanitydiff

  • 270379 05/16/12 09:12  rob            Target: Target: screenshots at the beginning of Day Shift

  • 270366 05/16/12 07:55  Pitt           Target: End of day shift screenshots

  • 270357 05/16/12 04:11  covrig         Target: owl screens shot

    • 

    Tuesday
    

  • 270350 05/15/12 23:17  jdowd          Target: Target screenshots, end of swing shift

  • 270331 05/15/12 19:25  jdowd          Target: Target screenshots

  • 270211 05/15/12 08:21  rob            Target: Target: screenshots at the beginning of Day Shift

  • 270201 05/15/12 07:37  Pitt           Target: Target:screenshots at end of owl shift

  • 270157 05/15/12 03:35  covrig         Target: Owl shift target screenshot

    • 

    Monday
    

  • 270134 05/14/12 23:30  jdowd          Target: Target screenshots 

  • 270070 05/14/12 16:06  jdowd          Target: Target screenshots, beginning of swing shift

  • 269980 05/14/12 00:42  covrig         Target: owl shift target screens shot

    • 

    Sunday
    

  • 269949 05/13/12 20:32  rakithab       Target: Moved target to HYDROGEN CELL

  • 269935 05/13/12 19:13  rakithab       Target: Move out of beam

  • 269912 05/13/12 17:17  rakithab       Target: screenshots at the beginning of Swing Shift

  • 269817 05/13/12 03:58  covrig         Target: owl screens shot - mid-shift

  • 269798 05/13/12 00:21  Page           Target: target screenshots, start of owl shift

    • 

    Saturday
    

  • 269774 05/12/12 20:23  Page           Target: Glitch in 4K temp - yellow alarm

  • 269750 05/12/12 16:39  Page           Target: screen shot, early in swing shift

  • 269705 05/12/12 10:22  dunne          Target: target pc crashed

  • 269704 05/12/12 10:19  dunne          Target: Target screen shot

  • 269657 05/12/12 02:15  covrig         Target: target screens shot (and 4K blip)

    • 

    Friday
    

  • 269640 05/11/12 23:52  Page           Target: screenshots, end of swing shift

  • 269608 05/11/12 18:17  Page           Target: target ladders heating up according to plan

  • 269605 05/11/12 17:50  Page           Target: Moved target to US Al 2%

  • 269573 05/11/12 15:34  vardan         Target: closed 15K JT valve by 1.5% (late entry)

  • 269571 05/11/12 15:26  vardan         Target: moved LH2 target in

  • 269551 05/11/12 14:26  vardan         Target: moved to DS-4% Al

  • 269531 05/11/12 12:52  vardan         Target: oscillations during the Moller solenoid warm up

  • 269495 05/11/12 08:50  vardan         Target: Target: screenshots at the beginning of Day Shift

  • 269483 05/11/12 07:18  covrig         Target: moved to Liquid Hydrogen target

  • 269463 05/11/12 06:32  covrig         Target: US-2%-Al at 110 uA

  • 269453 05/11/12 06:02  covrig         Target: moved to DS-4%-Al

  • 269434 05/11/12 02:37  covrig         Target: owl target screens shot

  • 269425 05/11/12 01:10  covrig         Target: moved to US2%Al

    • 

    Thursday
    

  • 269389 05/10/12 21:30  Page           Target: Low heater power oscillations

  • 269366 05/10/12 20:14  Page           Target: Screenshots, beam back at 180 uA

  • 269353 05/10/12 19:24  Page           Target: adjusted Moller quad alarm settings for normal production

  • 269352 05/10/12 19:17  Page           Target: Moved target to HYDROGEN CELL

  • 269320 05/10/12 16:59  Page           Target: target screenshots, Moller studies, target out of beam

  • 269298 05/10/12 14:29  vardan         Target: camera flickering

  • 269291 05/10/12 13:41  vardan         Target: day shift screenshot

  • 269281 05/10/12 11:58  rob            Target: "target controls" camera still flickers after replacement

  • 269254 05/10/12 08:50  vardan         Target: Changed Moller quad alarm limits

  • 269251 05/10/12 08:25  vardan         Target:  moved out of beam

  • 269241 05/10/12 07:46  alee           Target: High power heater alarms after beam trip

  • 269218 05/10/12 04:01  alee           Target: Owl shift target screenshot

    • 

    Wednesday
    

  • 269182 05/09/12 22:01  Page           Target: Beam back, target ion chamber rates a little high - upped yellow alarm from 200 to 210 r/h

  • 269174 05/09/12 20:09  Page           Target: Screenshots, getting ready for beam, middle of swing shift

  • 269172 05/09/12 20:00  Page           Target: Change to operational restrictions for 2% US Al targets

  • 269152 05/09/12 15:44  neven          Target: screenshots at the end of Day Shift

  • 269111 05/09/12 08:17  neven          Target: screenshots at the beginning of Day Shift

  • 269078 05/09/12 04:26  alee           Target: Target Control camera seems to be occasionally flickering

  • 269075 05/09/12 04:10  alee           Target: Owl shift target screenshot

    • 

    Tuesday
    

  • 268976 05/08/12 15:46  neven          Target: screenshots at the end of Day Shift

  • 268925 05/08/12 09:25  neven          Target: changed Moller Quad current limits

  • 268916 05/08/12 08:20  neven          Target: moved target to LIQUID HYDROGEN

  • 268915 05/08/12 08:17  neven          Target: screenshots at the beginning of Day Shift

  • 268892 05/08/12 04:32  alee           Target: Owl shift target screenshot

    • 

    Monday
    

  • 268859 05/07/12 23:53  Pitt           Target: Target screenshots at end of swing shift

  • 268856 05/07/12 23:43  Pitt           Target: Tungsten plug return temp was alarming, but fixed with vmec1 reboot

  • 268821 05/07/12 18:29  Pitt           Target: Changed HIGH limit on Horizontal Resistive Pot Stepper Mismatch

  • 268818 05/07/12 18:23  Pitt           Target: Changed large Moller quad alarm limits

  • 268815 05/07/12 18:00  Pitt           Target: Move target to DS-4% Al - late entry

  • 268814 05/07/12 17:59  Pitt           Target: Upstream dummy central target temperature alarm during 2% US Al running

  • 268798 05/07/12 16:58  Pitt           Target: Move target to US - 2% Aluminum

  • 268777 05/07/12 15:44  neven          Target: screenshots at the end of Day Shift

  • 268771 05/07/12 14:46  covrig         Target: what's in a name?

  • 268768 05/07/12 14:05  neven          Target: moved target to LIQUID HYDROGEN

  • 268760 05/07/12 13:33  wdconinc       Target: MCC asks: "what's the hole made of?"

  • 268759 05/07/12 13:30  neven          Target: Moved to DS- Centering hole

  • 268752 05/07/12 13:17  neven          Target: power stage error on the end of horizontal motion

  • 268749 05/07/12 13:07  neven          Target: moved target to HOME (Out of beam)

  • 268705 05/07/12 08:20  neven          Target: screenshots at the beginning of Day Shift

  • 268675 05/07/12 05:40  alee           Target: Owl shift sceenshot

  • 268662 05/07/12 03:42  alee           Target: Tungsten plug return temp is alarming

  • 268645 05/07/12 00:45  alee           Target: Beeping alarm continues after alarm is silenced/ fixed

    • 

    Sunday
    

  • 268622 05/06/12 22:28  Page           Target: Screen shot, 60 uA on 4% DS Al

  • 268615 05/06/12 21:58  Page           Target: Moved to DS Al 4% target

  • 268611 05/06/12 21:40  Page           Target: dump window tdiff issue

  • 268552 05/06/12 16:14  Page           Target: Moved target to HYDROGEN CELL

  • 268542 05/06/12 15:45  neven          Target: screenshots at the end of Day Shift

  • 268541 05/06/12 15:44  neven          Target: moved to DS -1.6% Carbon

  • 268525 05/06/12 14:49  neven          Target: moved target to LIQUID HYDROGEN

  • 268518 05/06/12 14:39  neven          Target: moved target to OPTICS-15

  • 268507 05/06/12 14:11  neven          Target: Moved to DS- 4% Aluminum target 

  • 268488 05/06/12 12:43  neven          Target: moved target to LIQUID HYDROGEN

  • 268479 05/06/12 12:18  nenen          Target: Moved to DS - 4% Aluminum 

  • 268471 05/06/12 12:02  neven          Target: Moved to US- 2% Aluminum 

  • 268463 05/06/12 11:44  neven          Target: Moved to US - 4% Aluminum 

  • 268453 05/06/12 11:26  neven          Target: Moved to US - 1% Aluminum target

  • 268435 05/06/12 10:50  neven          Target: Moved US - 2% Aluminum target 

  • 268393 05/06/12 08:01  neven          Target: screenshots at the beginning of Day Shift

  • 268385 05/06/12 07:03  alee           Target: Moved target to DS-4% Al

  • 268378 05/06/12 06:46  alee           Target: Target moved to optics 135

  • 268369 05/06/12 06:22  alee           Target: Target moved to Optics 15

  • 268364 05/06/12 05:57  alee           Target: Target moved to DS-1.6%-C

  • 268333 05/06/12 03:31  alee           Target: Owls shift target screenshot

    • 

    Saturday
    

  • 268282 05/05/12 23:14  Page           Target: Horizontal motion power stage error and recovery -- move to HYDROGEN CELL

  • 268272 05/05/12 22:43  Page           Target: Moved to 4 % DS aluminum

  • 268268 05/05/12 22:31  Page           Target: Moved target to OPTICS-135

  • 268262 05/05/12 22:20  Page           Target: moved to OPTICS-15 target

  • 268237 05/05/12 20:14  Page           Target: screenshots, middle of swing shift

  • 268185 05/05/12 17:57  Page           Target: Move target to HYDROGEN

  • 268166 05/05/12 17:30  Page           Target: moved to 1.6% DS C target

  • 268153 05/05/12 16:55  Page           Target: vertical motion amp fault - and remedy --> LH2 in

  • 268138 05/05/12 15:51  neven          Target: moved target to OPTICS-135

  • 268136 05/05/12 15:42  neven          Target: target scan at the end of the Day Shift

  • 268134 05/05/12 15:37  neven          Target: moved target to OPTICS-15

  • 268132 05/05/12 15:35  neven          Target: motion alarm

  • 268130 05/05/12 15:27  neven          Target: Moved to DS- 4% Aluminum target 

  • 268104 05/05/12 13:29  neven          Target: tungsten plug diff -0.7

  • 268102 05/05/12 13:20  neven          Target: moved target to HYDROGEN

  • 268095 05/05/12 13:06  neven          Target: moved target to OPTICS-135

  • 268089 05/05/12 12:52  neven          Target: moved target to OPTICS-15

  • 268085 05/05/12 12:39  neven          Target: moved to DS 4% Aluminum

  • 268056 05/05/12 10:13  neven          Target: moved target to HYDROGEN

  • 268054 05/05/12 10:09  neven          Target: Moved DS- 4% Aluminum target IN

  • 268051 05/05/12 10:07  neven          Target: Moved DS- 4% target IN

  • 268015 05/05/12 08:00  neven          Target: target scan at the beginnig of the Day Shift

  • 267993 05/05/12 06:02  alee           Target: Target move to LH2

  • 267965 05/05/12 04:15  alee           Target: Target moved to HOME

  • 267958 05/05/12 03:54  alee           Target: Owl shift target screenshot

    • 

    Friday
    

  • 267913 05/04/12 20:19  Page           Target: mid shift screen shots for target

  • 267865 05/04/12 15:38  vardan         Target: target screenshot at the end of day shift

  • 267858 05/04/12 15:10  vardan         Target: moved LH2 target in

  • 267786 05/04/12 09:21  vadan          Target: Large moller quad high limits changed

  • 267785 05/04/12 09:03  vardan         Target: moved LH2 target out

  • 267775 05/04/12 08:33  vardan         Target: target screenshots, beginning of day shift

    • 

    Thursday
    

  • 267696 05/03/12 20:16  Page           Target: mid shift screen shots for target

  • 267658 05/03/12 15:45  vardan         Target: end of day shift screenshots

  • 267637 05/03/12 12:28  Nuruzzaman     Target: Online target status page is UP now.

  • 267634 05/03/12 11:46  vardan         Target: target ion chamber rates high

  • 267618 05/03/12 10:06  vardan         Target: target screenshot by 2 hours in day shift

    • 

    Wednesday
    

  • 267517 05/02/12 15:51  smithg         Target: 4K return improved again

  • 267512 05/02/12 15:23  vardan         Target: changed HI limit on Qtor current difference

  • 267511 05/02/12 15:22  smithg         Target: xfer line pumping helped, then got worse again

  • 267508 05/02/12 14:45  vardan         Target: Changed Moller quad alarm limits

  • 267499 05/02/12 13:24  vardan         Target: drop in 4K flow

  • 267495 05/02/12 12:18  vardan         Target: target screenshot at the middle of day shift

  • 267453 05/02/12 07:15  wsduvall       Target: Moved target to LH2

  • 267410 05/02/12 05:44  wsduvall       Target: Moved target to DS-4% Al

    • 

    Tuesday
    

  • 267329 05/01/12 22:38  magee          Target: moved to lh2

  • 267320 05/01/12 21:47  magee          Target: moved to DS 1.6% carbon

  • 267317 05/01/12 21:15  magee          Target: moved to US 4% Aluminum

  • 267309 05/01/12 20:43  magee          Target: moved to 2% US aluminum

  • 267302 05/01/12 20:11  magee          Target: moved to 1% US aluminum

  • 267295 05/01/12 19:46  magee          Target: moved to DS 8% Aluminum

  • 267289 05/01/12 19:16  magee          Target: moved to 2% DS aluminum

  • 267286 05/01/12 18:54  magee          Target: Appears to be back at full power

  • 267276 05/01/12 17:20  smithg         Target: Should be back to full power in ~ 1/2h

  • 267275 05/01/12 17:18  magee          Target: Back to 29 Hz on the pump

  • 267261 05/01/12 16:04  rob            Target: alarm limit change reverted

  • 267259 05/01/12 15:54  smithg         Target: CHL C6 recovered. Beginning to recover 4K flow to Hall C.

  • 267254 05/01/12 15:18  rob            Target: changed LOWLOW alarm on QW_FI_4K from 7 g/s to 5 g/s

  • 267252 05/01/12 15:08  rob            Target: changed LOWLOW alarm on QW_FI_4K from 6 g/s to 7 g/s

  • 267251 05/01/12 15:03  rob            Target: the adventure begins

  • 267249 05/01/12 14:59  smithg         Target: Recovered. But a new problem at CHL means 4K flow will be cut again

  • 267248 05/01/12 14:59  rob            Target: another CHL trip

  • 267239 05/01/12 14:08  rob            Target: alarm limit change reverted

  • 267237 05/01/12 13:56  rob            Target: alarm limit change reverted

  • 267236 05/01/12 13:51  smithg         Target: Cryo starting to slowly restore our 4K flow

  • 267234 05/01/12 13:26  rob            Target: changed LOW alarm on QW_FI_4K from 8 g/s to 11 g/s

  • 267233 05/01/12 13:25  smithg         Target: Cryo has restarted C6, we're off the SBR. SHould start to recover.

  • 267232 05/01/12 13:06  rob            Target: no alarms for about 20 minutes

  • 267231 05/01/12 12:36  rob            Target: red alarm: 4k flow dipped below 6 g/s

  • 267230 05/01/12 12:21  smithg         Target: CHL compressor problems: preparing tgt for a rough ride

  • 267229 05/01/12 12:20  rob            Target: screenshot

  • 267228 05/01/12 12:19  rob            Target: fasten seat belts, trouble at cryo; pump speed reduced

  • 267223 05/01/12 09:32  rob            Target: target screenshots, beginning of day shift

  • 267171 05/01/12 00:15  narayan        Target: auxilliary heater's pot set to 940