Jefferson Lab Hall C Logbook for April 11 - Target

  • Main INDEX

    Saturday

  • 231079 04/30/11 22:23  narayan        Target: the current monitoring bcm on target was chnaged to ibcm1 for a moment

  • 231037 04/30/11 17:23  narayan        Target: vmec18 alarms once in a while

  • 230968 04/30/11 08:33  Pitt           Target: Beginning of shift screenshot

  • 230938 04/30/11 03:37  L.Lee          Target: Tungsten plug temp alarm, goes to 32.4

  • 230908 04/30/11 00:00  L.Lee          Target: Target GUI and strip charts screenshots at the start of owl shift

    • Friday

  • 230887 04/29/11 21:03  hamlet         Target:   Changed high limmit for bellows temperature from 95.0 to 99.0

  • 230868 04/29/11 19:08  hamlet         Target: Target GUI and strip charts screenshots at the beam current 175 uA

  • 230867 04/29/11 19:04  hamlet         Target: Target  GUI and strip charts screenshots at the beam current 175 uA

  • 230840 04/29/11 16:12  hamlet         Target: Target GUI and strip charts screenshots at the beginning of the  shift

  • 230812 04/29/11 13:05  Pitt           Target: Move to hydrogen target cell

  • 230787 04/29/11 09:01  Pitt           Target: Moved to Out of Beam position

  • 230779 04/29/11 08:35  Pitt           Target: Beginning day shift screen shot

  • 230757 04/29/11 05:01  L.Lee          Target: JT valves opened slightly

  • 230720 04/29/11 00:05  L.Lee          Target: Target GUI and strip charts screenshots at start of owl shift

    • Thursday

  • 230648 04/28/11 16:26  benesch        Target: Wien has been flipped

  • 230625 04/28/11 08:11  birchall       Target: Screen shots at the beginning of day shift

    • Wednesday

  • 230555 04/27/11 22:36  L.Lee          Target: Target GUI and strip charts screenshot for latter part of Swing Shift (after target change to LH2)

  • 230552 04/27/11 22:28  L.Lee          Target: Target change from DS 4% Al back to LH2

  • 230538 04/27/11 20:06  L.Lee          Target: Read glitches from QWT_poA

  • 230511 04/27/11 15:58  L.Lee          Target: Target GUI and strip charts screenshots at beginning of Swing Shift

  • 230487 04/27/11 14:05  kamyers        Target: temps screenshot with 4% DS Aluminum at 26 uA, 3.5x3.5

  • 230477 04/27/11 12:59  kamyers        Target: moved to DS 4% Al target

  • 230422 04/27/11 09:06  kamyers        Target: target moved to out of beam (Home)

  • 230415 04/27/11 08:26  kamyers        Target: screenshots at beginning of day shift

    • Tuesday

  • 230361 04/26/11 23:44  vardan         Target: GUI and strip charts screenshots

  • 230292 04/26/11 16:17  vardan         Target: Target GUI and strip charts screenshots

  • 230290 04/26/11 16:06  buddhini       Target: Reduced the 4K supply by 3% on cryos request and inreased it back again to its original value.

  • 230274 04/26/11 14:12  buddhini       Target: Start of the 4K oscillations at 2.00 p.m (or so)

  • 230259 04/26/11 08:15  buddhini       Target: Screen shots at the beginning of day shift

  • 230236 04/26/11 05:03  narayan        Target: Generic mid-shift screenshot

    • Monday

  • 230197 04/25/11 23:59  vardan         Target: Target GUI and strip charts screenshots

  • 230177 04/25/11 21:51  vardan         Target: 4K oscillations as yesterday

  • 230142 04/25/11 17:43  vardan         Target: tungsten temp. drops, HPH power subsides

  • 230138 04/25/11 17:21  smithg         Target: closed 4K JT a little

  • 230136 04/25/11 17:13  vardan         Target: beam compensation back on bcm2

  • 230127 04/25/11 16:49  vardan         Target: beam compensation on bcm1

  • 230126 04/25/11 16:30  vardan         Target: tungsten plug temperature rising

  • 230072 04/25/11 10:57  covrig         Target: horizontal motion snag

  • 230048 04/25/11 08:06  narayan        Target: Generic end of shift screenshot

  • 230003 04/25/11 01:28  narayan        Target: mid shift snapshot

    • Sunday

  • 229988 04/24/11 23:49  manos          Target: 4K oscillations dampened at night

  • 229960 04/24/11 20:01  manos          Target: Screenshots

  • 229959 04/24/11 19:58  manos          Target: Vacuum correlation to 4K oscillations

  • 229951 04/24/11 19:19  manos          Target: 4K oscillations

  • 229924 04/24/11 15:09  vardan         Target: 4K line oscillations persist

  • 229923 04/24/11 14:50  vardan         Target: screenshots, oscillations in 4K line

  • 229911 04/24/11 12:46  covrig         Target: slow vacuum leak in the chamber (?)

  • 229873 04/24/11 07:54  narayan        Target: Generic Target snapshot

  • 229824 04/24/11 01:25  narayan        Target: Generic Target screenshot

    • Saturday

  • 229791 04/23/11 22:04  manos          Target: Screenshots

  • 229790 04/23/11 21:56  manos          Target: W-plug temp still high

  • 229773 04/23/11 18:45  manos          Target: Alarm handler not responding well?

  • 229758 04/23/11 16:20  manos          Target: Tungsten plug temp staying above high limit

  • 229746 04/23/11 15:38  vardan         Target: screenshots

  • 229745 04/23/11 15:23  vardan         Target: Tungsten plug temp alarm

    • Friday

  • 229633 04/22/11 22:46  hamlet         Target: Target GUI and strip charts screenshots for Swing shift

  • 229572 04/22/11 15:54  vardan         Target: end shift snapshot

  • 229561 04/22/11 14:29  vardan         Target: Moved LH2 target in

  • 229558 04/22/11 14:19  vardan         Target: cause of 15K line oscillations

  • 229554 04/22/11 13:52  vardan         Target: 15K line oscillations

  • 229528 04/22/11 11:33  vardan         Target: 15K supply pressure alarm thresholds changed

  • 229527 04/22/11 10:57  vardan         Target: status

  • 229524 04/22/11 10:22  vardan         Target: LH2 target out

  • 229521 04/22/11 10:00  vardan         Target: 15K flow increase

  • 229520 04/22/11 09:53  vardan         Target: notification on work on hall A crio supply

  • 229505 04/22/11 08:21  vardan         Target: screenshot at the beginning of shift

  • 229471 04/22/11 04:12  narayan        Target: status , middle of the owl shift

  • 229443 04/22/11 00:42  narayan        Target: Owl snapshot

    • Thursday

  • 229362 04/21/11 15:44  Chuck Davis    Target: Screenshots

  • 229346 04/21/11 11:45  Chuck Davis    Target: Vacuum oscillations.

  • 229343 04/21/11 10:39  Chuck Davis    Target: Corrected

  • 229341 04/21/11 10:34  Chuck Davis    Target: CHL close their JT somewhat

  • 229339 04/21/11 09:38  Chuck Davis    Target: Status

  • 229329 04/21/11 08:38  Chuck Davis    Target: Screenshots

  • 229322 04/21/11 08:29  Chuck Davis    Target: Moller sucking away 4K

    • Wednesday

  • 229223 04/20/11 23:33  Chuck Davis    Target: (Close to) end of swing shift screenshot

  • 229175 04/20/11 18:23  Chuck Davis    Target: Beam back on Target  ~18:16

  • 229173 04/20/11 17:28  Chuck Davis    Target: CRYO is done, target is ready

  • 229172 04/20/11 17:01  Chuck Davis    Target: Fixed

  • 229171 04/20/11 16:42  Chuck Davis    Target: Still waiting on CHL:  Stripcharts

  • 229161 04/20/11 14:51  buddhini       Target: Coolent box trip related oscillations in the 4K line. Cryo will close the 4K line.

  • 229146 04/20/11 13:10  buddhini       Target: Small drop in the 4K supply temperature.

  • 229128 04/20/11 10:32  covrig         Target: opened 15K JT 1% (late entry)

  • 229119 04/20/11 09:29  buddhini       Target: A smal increase in the 15k Mass flow

  • 229100 04/20/11 08:09  buddhini       Target: Screen shots at the begining of the day shift

    • Tuesday

  • 229024 04/19/11 23:44  Chuck Davis    Target: Screenshots

  • 229015 04/19/11 21:54  Chuck Davis    Target: LH2 Target is IN

  • 229012 04/19/11 19:35  Chuck Davis    Target: 15 K JT valve opened.

  • 229010 04/19/11 19:18  Chuck Davis    Target: LH2 Target put out of beam

  • 229004 04/19/11 16:57  Chuck Davis    Target: 15K input temp. low.

  • 229003 04/19/11 16:19  Chuck Davis    Target: QW_T1_15K_IN

  • 228991 04/19/11 15:25  buddhini       Target: Oscillating 4K supply  temperatrure, inlet preasure & scattering chamber vacuum

  • 228976 04/19/11 13:51  covrig         Target: full of lh2 and ready for full power beam

  • 228946 04/19/11 08:27  Jiawei         Target: start cooling down the target

    • Monday

  • 228913 04/18/11 15:09  covrig         Target: started (pre)cooling the target

  • 228873 04/18/11 10:29  covrig         Target: status

    • Sunday

  • 228858 04/17/11 00:02  manos          Target: Transition beamline vacuum

    • Saturday

  • 228857 04/16/11 23:30  manos          Target: Turbo pump 3h09b tripped, made access to restart

  • 228856 04/16/11 21:24  birchall       Target: Typos

  • 228855 04/16/11 20:31  birchall       Target: Turned off target pump

  • 228853 04/16/11 20:30  birchall       Target: Access to check scattering chamber gate valve

  • 228850 04/16/11 20:25  covrig         Target: target vacuum flatlined

  • 228847 04/16/11 19:26  birchall       Target: Status of target

  • 228846 04/16/11 19:01  birchall       Target: CHL crash

  • 228841 04/16/11 16:18  birchall       Target: Screen shot at beginning of swing shift

  • 228830 04/16/11 13:04  manos          Target: Screenshots

  • 228827 04/16/11 12:34  manos          Target: Vacuum fluctuations right before pump died

  • 228823 04/16/11 11:33  manos          Target: Pressure now up to 0.08atm

  • 228821 04/16/11 11:13  manos          Target: Downstream beamline vacuum up to 18e-4

  • 228819 04/16/11 10:29  manos          Target: Correction : No wrong alarm after all

  • 228811 04/16/11 09:00  manos          Target: Scattering chamber vacuum spike, wrong alarm color

  • 228794 04/16/11 07:00  Chuck Davis    Target: Odd Rates

  • 228787 04/16/11 06:39  Chuck Davis    Target: QTOR:  Trips OFF

  • 228745 04/16/11 01:39  Chuck Davis    Target: Screenshots

    • Friday

  • 228670 04/15/11 16:12  Nuruzzaman     Target: Target Screens at the beginning of Swing shift

  • 228563 04/15/11 05:45  Chuck Davis    Target: Beam Dump vacuum alarm (Red!)

  • 228552 04/15/11 04:03  Chuck Davis    Target: Beam dump vacuum alarm

  • 228529 04/15/11 00:46  Chuck Davis    Target: Screenshots

    • Thursday

  • 228483 04/14/11 18:34  Nuruzzaman     Target: Calculation of heater power  for Target GUI is changed back to bcm1 now.

  • 228465 04/14/11 17:37  Nuruzzaman     Target: 

  • 228436 04/14/11 15:48  Chuck Davis    Target: Reboot of vmec15

  • 228434 04/14/11 15:20  Chuck Davis    Target: Screenshots

  • 228416 04/14/11 13:23  Chuck Davis    Target: Screenshots

  • 228412 04/14/11 12:42  Chuck Davis    Target: LH2 Target IN.  Beam restored but still "Beam Studies".

  • 228409 04/14/11 11:53  Chuck Davis    Target: Tgt Chamber Vacuum Alarm (yellow)

  • 228401 04/14/11 08:47  Chuck Davis    Target: SScreenshots at end of production running and beginning of beam studies.  The Target is OUT OF BEAM.

  • 228396 04/14/11 08:41  Chuck Davis    Target: LH2 Tgt. moved OUT

    • Wednesday

  • 228288 04/13/11 22:28  Nuruzzaman     Target: Target Screens.

  • 228265 04/13/11 17:31  Nuruzzaman     Target: Target moved to LH2

  • 228243 04/13/11 15:48  Nuruzzaman     Target: Target screens at the beginning of swing shift.

  • 228193 04/13/11 09:37  Chuck Davis    Target: Stripchart

  • 228181 04/13/11 09:07  Chuck Davis    Target: Beam dump pressure alarms again.

  • 228180 04/13/11 09:00  CH             Target: VCG3H09DTr spikes above High (yellow) limit momentarily

    • Tuesday

  • 228096 04/12/11 23:35  Chuck Davis    Target: Screenshots towards end of Swing shift

  • 228090 04/12/11 22:34  Chuck Davis    Target: Correlation between tungsten plug tem and g0rate3

  • 228082 04/12/11 21:12  Chuck Davis    Target: Tungsten Plug water temperature coming down

  • 228081 04/12/11 20:54  Chuck Davis    Target: Screenshots, about 45 m into 165 uA running

  • 228080 04/12/11 20:49  Chuck Davis    Target: qw:tungstenplug yellow alarm

  • 228076 04/12/11 20:29  Chuck Davis    Target: QTOR alarm: qt_mps_i_diff;  High (yellow, minor) alarm was raised slightly

  • 228072 04/12/11 20:14  Chuck Davis    Target: went from 4% DS Al --> LH2

  • 228068 04/12/11 20:08  Chuck Davis    Target: Moved LH2 cell IN

  • 228035 04/12/11 16:49  Chuck Davis    Target: DS Tgt. B High (minor, yellow) limit raised.  Bootleg ALH killed.

  • 228029 04/12/11 16:35  Chuck Davis    Target: Change to CRYO and our response with 4K JT.

  • 227940 04/12/11 07:27  rob            Target: correlated blips in 4k coolant and vacuum.

  • 227927 04/12/11 05:25  rob            Target: HPH alarm following beam trip

  • 227894 04/12/11 01:36  rob            Target: screenshot early owl shift

    • Monday

  • 227879 04/11/11 23:51  Chuck Davis    Target: Changed High (yellow) alarm for Dump window temp. diff.

  • 227878 04/11/11 23:46  Chuck Davis    Target: Fourth yellow alarm on the widow temp. diff.

  • 227876 04/11/11 23:40  Chuck Davis    Target: A third exit window temp. diff. yellow alarm.

  • 227874 04/11/11 23:35  Chuck Davis    Target: End of shift (almost) screen shot of the target

  • 227873 04/11/11 23:30  Chuck Davis    Target: The second Window differential Temp. yellow alarm this shift

  • 227847 04/11/11 20:00  Chuck Davis    Target: Addendum to 227846

  • 227846 04/11/11 19:55  Chuck Davis    Target: HiPowerHtr drops to ~35 W om beam recovery to 165 uA

  • 227837 04/11/11 18:18  Chuck Davis    Target: Target Screenshots & Status

  • 227820 04/11/11 16:05  Chuck Davis    Target: LH2 Tgt is now IN

  • 227796 04/11/11 12:26  rakithab       Target: Moved LH2 out of beam

  • 227762 04/11/11 08:09  rakithab       Target: Target GUI and strip charts screen shots for Day shift

  • 227709 04/11/11 00:10  rob            Target: screenshots start of owl shift

    • Sunday

  • 227683 04/10/11 19:59  manos          Target: Scattering Chamber vacuum High alarm

  • 227681 04/10/11 19:47  manos          Target: Target GUI and strip charts screenshots for Swing shift

  • 227627 04/10/11 12:22  M Jones        Target: Target GUI and strip charts screenshots

  • 227577 04/10/11 04:58  covrig         Target: screens snapshot

    • Saturday

  • 227517 04/09/11 20:08  manos          Target: Target GUI and strip charts screenshots for Swing shift

  • 227515 04/09/11 20:06  manos          Target: HPH power red alarm

  • 227448 04/09/11 09:38  donjones       Target: scattering chamber vacuum alarm

  • 227424 04/09/11 06:04  covrig         Target: screen shot & DS bellows temperature & vacuum

    • Friday

  • 227303 04/08/11 14:32  smithg         Target: alarm handler changes 

  • 227285 04/08/11 12:36  donjones       Target: Moved back to H2: screenshots for Day shift

  • 227240 04/08/11 08:54  donjones       Target: moved target to home

  • 227176 04/08/11 00:09  vardan         Target: screenshots at the beginning of owl shift

    • Thursday

  • 227113 04/07/11 14:36  donjones       Target: target screenshot day shoft

    • Wednesday

  • 226936 04/06/11 12:58  rakithab       Target: moved to LH2

  • 226910 04/06/11 10:13  rakithab       Target: Target move out of beam for Moller

  • 226894 04/06/11 08:13  rakithab       Target: Target GUI and strip charts screen shots for Day shift

    • Tuesday

  • 226813 04/05/11 22:12  narayan        Target: swing Shift snapshot 

  • 226792 04/05/11 19:24  narayan        Target: QTOR readback0 error fixed itself

  • 226791 04/05/11 19:16  narayan        Target: QTOR temp readback

  • 226777 04/05/11 18:13  narayan        Target: target taking 160 uA

  • 226776 04/05/11 18:10  narayan        Target: moving to LH2

  • 226734 04/05/11 10:01  buddhini       Target: Moved to Home position out of beam

  • 226704 04/05/11 04:10  covrig         Target: screens shot

    • Monday

  • 226669 04/04/11 23:50  birchall       Target: White alarm before it turned yellow

  • 226666 04/04/11 23:41  birchall       Target: White and yellow alarms

  • 226661 04/04/11 23:00  birchall       Target: White alarm - vmec18

  • 226656 04/04/11 22:19  birchall       Target: Bellows temperature limits

  • 226654 04/04/11 22:08  birchall       Target: Bellows temperature

  • 226651 04/04/11 21:31  birchall       Target: Bellows temperature

  • 226639 04/04/11 20:03  birchall       Target: Reboot of vmec15

  • 226632 04/04/11 18:30  gaskell        Target: 4K oscillations - A-can turbo stopped

  • 226630 04/04/11 18:22  birchall       Target: Screenshot at 18:20 after attempts to minimize 4K oscillations

  • 226609 04/04/11 16:23  birchall       Target: Screen shot at beginning of swing shift

  • 226536 04/04/11 07:47  covrig         Target: Moller epics channels dead?

  • 226488 04/04/11 01:09  covrig         Target: screens shot for owl shift

    • Sunday

  • 226469 04/03/11 23:48  birchall       Target: Alarms

  • 226412 04/03/11 16:05  birchall       Target: Screen shot, start of swing shift

  • 226395 04/03/11 14:48  manos          Target: HPH power at 160uA

  • 226380 04/03/11 11:52  manos          Target: Target GUI and strip charts screenshots for Day shift

  • 226320 04/03/11 03:45  donjones       Target: Target GUI and strip charts screenshots at middle of owl shift

    • Saturday

  • 226244 04/02/11 16:07  birchall       Target: Screenshot at start of swing shift

  • 226231 04/02/11 15:19  manos          Target: bellowstemp3 High limit

  • 226215 04/02/11 13:52  smithg         Target: Pump didn't trip. Just a voltage readback problem.

  • 226203 04/02/11 12:36  manos          Target: Target GUI and strip charts screenshots for Day shift

  • 226202 04/02/11 12:24  manos          Target: HPH power LoLo alarm

  • 226180 04/02/11 09:33  manos          Target: LH2 pump tripped, recovered

  • 226149 04/02/11 03:14  narayan        Target: pls ignore the 2nd snapshot in entry # 226144

  • 226144 04/02/11 02:43  narayan        Target: evolving through target computer reboot

  • 226130 04/02/11 01:05  smithg         Target: QWT_miA

  • 226129 04/02/11 00:57  narayan        Target: target computer rebooted itself: QW_miA alarm

  • 226124 04/02/11 00:02  hamlet         Target: End shift entry

    • Friday

  • 226038 04/01/11 13:30  smithg         Target: will make an entry to improve vacuum

  • 225944 04/01/11 03:49  narayan        Target: vacuum variation status: apparently stable

  • 225941 04/01/11 03:07  narayan        Target: target upstream vacuum on a +ve slope