Jefferson Lab Hall C Logbook for November 11 - Target

  • Main INDEX

    Wednesday

  • 241657 11/30/11 23:45  Chuck Davis    Target: [Almost] End of Swing Shift Sceenshot & Summary

  • 241632 11/30/11 21:27  Chuck Davis    Target: Screenshot at 21:25

  • 241589 11/30/11 18:04  Chuck Davis    Target: Screenshots just past 18:00

  • 241563 11/30/11 16:00  Chuck Davis    Target: Move H2 Target back IN

  • 241556 11/30/11 15:07  smithg         Target: solid target commissioning results

  • 241517 11/30/11 09:06  birchall       Target: Moved target to out of beam (home) position

  • 241505 11/30/11 08:03  birchall       Target: Screen shot at beginning of day shift

  • 241504 11/30/11 07:53  Arthur         Target: Screenshots

  • 241450 11/30/11 00:20  Arthur         Target: Screenshots

    • Tuesday

  • 241441 11/29/11 23:49  Chuck Davis    Target: [Almost] End of Swing Shift Target Summary

  • 241431 11/29/11 22:23  Chuck Davis    Target: Not so unusual quntum jump in vacuum

  • 241425 11/29/11 21:46  Chuck Davis    Target: Unusual quantum change in target chamber vacuum

  • 241393 11/29/11 18:03  Chuck Davis    Target: Screenshots of the Target after >1 h of uninterrupted 170 uA beam

  • 241364 11/29/11 15:42  Arshak         Target: Tungsten plud alarm limit rised up to 4.5

  • 241360 11/29/11 15:16  Arshak         Target: target screenshots at 140uA Beam

  • 241343 11/29/11 11:44  Arshak         Target: target screenshots before getting beam

  • 241315 11/29/11 07:37  Arthur         Target: target screenshots

  • 241305 11/29/11 06:49  Arthur         Target: Tungsten plug water temperature difference trips

  • 241293 11/29/11 04:35  Arthur         Target: Tungsten plug water temperature difference trips

  • 241266 11/29/11 00:49  Arthur         Target: Tungsten temperature difference value alarm issues

  • 241254 11/29/11 00:03  Arthur         Target: target screenshots

    • Monday

  • 241174 11/28/11 18:10  birchall       Target: The cooling of the solid targets

  • 241164 11/28/11 17:34  birchall       Target: Target screens at beginning of swing shift

  • 241160 11/28/11 17:28  birchall       Target: Alarms limits for Al targets

  • 241158 11/28/11 17:23  birchall       Target: Moved to LH2 target

  • 241154 11/28/11 17:04  birchall       Target: Increased cooling power

  • 241145 11/28/11 15:57  kamyers        Target: target moved to 2x2 BR centering, then back to 2% US Al, target still centered

  • 241131 11/28/11 15:08  kamyers/smit   Target: 2% DS Al commissioned to 90 uA

  • 241108 11/28/11 14:01  kamyers/smit   Target: 4% DS Al commissioned to 60 uA

  • 241106 11/28/11 13:58  kamyers        Target: moved to 2% DS Al

  • 241088 11/28/11 11:47  kamyers        Target: moved to 4% DS Al

  • 241083 11/28/11 11:00  kamyers        Target: moved to 4% DS Al. back to LH2

  • 241077 11/28/11 10:37  kamyers        Target: qtor current diff HI limit raised

  • 241052 11/28/11 08:03  rob            Target: total of 7 yellow alarms on qw:tungstenplugdiff over owl shift

  • 241023 11/28/11 03:29  rob            Target: archiver plots of tungsten plug temperature differences

  • 241021 11/28/11 02:59  rob            Target: yellow alarm: tungsten plug water temperature difference (take 5)

  • 241020 11/28/11 02:49  rob            Target: yellow alarm: tungsten plug water temperature difference (take 4)

  • 241017 11/28/11 02:13  rob            Target: yellow alarm: tungsten plug water temperature difference (take 3)

  • 241015 11/28/11 01:58  rob            Target: yellow alarm: tungsten plug water temperature difference (again)

  • 241010 11/28/11 01:05  rob            Target: yellow alarm: tungsten plug water temperature difference

    • Sunday

  • 240985 11/27/11 23:59  rob            Target: target screenshots: start of owl shift

  • 240952 11/27/11 17:03  smithg         Target: if beam moves, we need to recenter targets too

  • 240883 11/27/11 11:32  covrig         Target: rebooting the target computer

  • 240835 11/27/11 07:02  rob            Target: scattering chamber vacuum: 1.5 uTorr is the new normal

  • 240825 11/27/11 05:37  rob            Target: target screenshots

  • 240823 11/27/11 05:33  rob            Target: burp in scattering chamber vacuum

  • 240793 11/27/11 01:21  rob            Target: target screenshots: early owl shift

    • Saturday

  • 240754 11/26/11 21:28  smithg         Target: alarm tree GUI was probably iconized

  • 240737 11/26/11 18:58  birchall       Target: QTOR alarm on target

  • 240712 11/26/11 16:06  birchall       Target: Target screens at beginning of swing shift

  • 240708 11/26/11 15:48  rajotte        Target: End of shift screenshot

  • 240616 11/26/11 09:13  rajotte        Target: target screenshots

  • 240598 11/26/11 06:44  dalton         Target: screenshot

  • 240579 11/26/11 03:56  dalton         Target: Target ion chamber yellow alarm

    • Friday

  • 240512 11/25/11 20:28  birchall       Target: BCM calibration was up to 180 muA, not 80 muA!

  • 240511 11/25/11 20:18  birchall       Target: Target during first half of BCM calibration - up to 80 muA

  • 240501 11/25/11 18:59  birchall       Target: White alarm - vmec15

  • 240488 11/25/11 18:24  birchall       Target: Short test at 180 muA

  • 240476 11/25/11 17:34  birchall       Target: From 40 to 150 muA!

  • 240449 11/25/11 16:11  birchall       Target: Target screens at beginning of swing shift

  • 240441 11/25/11 15:53  saw            Target: Target Screenshot, end of day shift

  • 240426 11/25/11 15:12  covrig         Target: horizontal table heater a bit too happy, archiver data missing

  • 240311 11/25/11 07:41  Adesh          Target: End of the owl shift screenshot

    • Thursday

  • 240266 11/24/11 23:25  smacewan       Target: Target Screenshots, Swing Shift

  • 240250 11/24/11 20:31  Nuruzzaman     Target: Target status web page is working again

  • 240217 11/24/11 15:37  smacewan       Target: Opened 4k JT in preparation for high current BCM calibration + End of shift screenshot

  • 240189 11/24/11 13:14  smithg         Target: clear indication of improved vacuum since 3rd turbo installation

  • 240182 11/24/11 12:18  smithg         Target: Strip charts prepared for eventual solid tgt commissioning

  • 240163 11/24/11 09:20  smithg         Target: 140 uA screenshot. Exit window temp alarms.

  • 240143 11/24/11 07:43  Adesh          Target: End of the owl shift screenshot

    • Wednesday

  • 240116 11/23/11 22:41  birchall       Target: Target while tuning for 140 muA

  • 240115 11/23/11 22:35  birchall       Target: High power heater compensation

  • 240114 11/23/11 22:14  SMITHG         Target: turn on beam compensation

  • 240065 11/23/11 15:58  birchall       Target: Screen shot at beginning of swing shift

  • 240058 11/23/11 14:53  kamyers        Target: target screenshots

  • 240054 11/23/11 14:08  smithg         Target: new horizontal motion alarm available

  • 240043 11/23/11 12:25  kamyers        Target: reboot the IOC

  • 240025 11/23/11 11:34  kamyers        Target: target moved to LH2

  • 240006 11/23/11 10:24  kenyon         Target: Vacuum work at scattering chamber

  • 240005 11/23/11 10:24  kamyers        Target: transition beamline vacuum, RGA

  • 239951 11/23/11 07:50  Arthur         Target: moved to Optics-135

  • 239948 11/23/11 07:43  Arthur         Target: moved to Optics-15

  • 239945 11/23/11 07:37  Arthur         Target: moved to Optics-3

  • 239915 11/23/11 06:43  Arthur         Target: moved to LH2

  • 239910 11/23/11 06:26  Arthur         Target: moved to AL-8%

  • 239906 11/23/11 06:12  Arthur         Target: moved to AL-2%

  • 239886 11/23/11 04:47  Arthur         Target: moved to LH2

  • 239878 11/23/11 03:49  Arthur         Target: moved out of beam home position

  • 239867 11/23/11 02:53  Arthur         Target: moved to LH2.

  • 239862 11/23/11 02:28  Arthur         Target: moved to AL-4%

  • 239834 11/23/11 00:06  Arthur         Target: target screenshots

    • Tuesday

  • 239826 11/22/11 22:25  birchall       Target: GateValve alarms

  • 239813 11/22/11 21:02  smithg         Target: new encoder table with pot values

  • 239788 11/22/11 19:03  birchall       Target: Moved back to LH2 target

  • 239772 11/22/11 17:44  birchall       Target: Screen shot after moving to 4% DS Al target

  • 239771 11/22/11 17:39  birchall       Target: Moved target to 4% DS Al

  • 239761 11/22/11 17:10  birchall       Target: Target screen shot at 17:10, Nov 22, 2011

  • 239752 11/22/11 15:40  smithg         Target: down

  • 239751 11/22/11 15:35  smithg         Target: reduced 4K JT a bit. End of shift screen shots.

  • 239748 11/22/11 15:23  smithg         Target: put LH2 tgt in beam

  • 239740 11/22/11 13:52  smithg         Target: Up-parked at 2 kW and 30 Hz

  • 239725 11/22/11 11:05  smithg         Target: 4K temp oscillations drive vacuum wiggles

  • 239715 11/22/11 09:35  smithg         Target: moved to home for high current beam studies

  • 239708 11/22/11 09:04  smithg         Target: are vacuum oscillations driven by 4K?

  • 239690 11/22/11 07:16  Arthur         Target: target screenshots

  • 239637 11/22/11 03:10  Arthur         Target: target screenshots

  • 239636 11/22/11 03:08  Arthur         Target: IOC froze 

  • 239611 11/22/11 00:50  Arthur         Target: target screenshots

    • Monday

  • 239584 11/21/11 22:06  Nuruzzaman     Target: Target moved to LH2.

  • 239571 11/21/11 21:04  Nuruzzaman     Target: Target moved to 4% DS Al.

  • 239552 11/21/11 19:33  Nuruzzaman     Target: Target moved to LH2.

  • 239543 11/21/11 18:50  Nuruzzaman     Target: Target moved to 4% DS Al.

  • 239506 11/21/11 17:08  Nuruzzaman     Target: Target moved to LH2.

  • 239491 11/21/11 16:12  Nuruzzaman     Target: Target screen shots @ beginning of swing shift

  • 239490 11/21/11 16:10  Nuruzzaman     Target: Horizontal target motor brake temp. increased a bit

  • 239476 11/21/11 15:48  kamyers        Target: moved to 4% DS Al

  • 239463 11/21/11 15:25  kamyers        Target: status: trying to get to 4% DS Al

  • 239434 11/21/11 13:47  kamyers        Target: gate valve red alarm from glitch

  • 239423 11/21/11 12:29  kamyers        Target: target "gate valve" red alarm - back to normal

  • 239413 11/21/11 11:25  kamyers        Target: target screenshots

  • 239406 11/21/11 10:53  covrig         Target: reloaded the alarm limits

  • 239403 11/21/11 10:32  smithg         Target: probably we need the 2nd turbo

  • 239400 11/21/11 10:11  kamyers        Target: slow leak in transition vacuum?

  • 239391 11/21/11 08:40  kamyers        Target: yellow alarms on transition beamline and target chamber vacuum

  • 239390 11/21/11 08:31  kamyers        Target: yellow alarm for qtor diff

  • 239382 11/21/11 07:41  Adesh          Target: Owl shift screenshot

  • 239332 11/21/11 00:50  Adesh          Target: transition vacuum HIGH alarm

    • Sunday

  • 239329 11/20/11 23:56  Mitra          Target: Screen snapshots

  • 239324 11/20/11 22:43  Mitra          Target: Channel Plot screen shot

  • 239323 11/20/11 22:41  Mitra          Target: Yellow alarm on Target Chamber Vacuum

  • 239317 11/20/11 16:31  Mitra          Target: strip charts and red alarm

  • 239316 11/20/11 16:25  Mitra          Target: screen shots

  • 239313 11/20/11 16:00  magee          Target: End of shift screenshot

  • 239312 11/20/11 15:58  covrig         Target: some explanations (I hope)

  • 239309 11/20/11 15:09  magee          Target: Target alarm limits changed (Scattering vacuum chamber and 15k outflow)

  • 239306 11/20/11 14:47  magee          Target: (more) Scattering chamber alarms

  • 239301 11/20/11 13:43  magee          Target: scattering chamber vacuum alarms

  • 239299 11/20/11 13:35  magee          Target: LH2 -> OutOfBeam (15K0 coolant alarm, downstream dummy alarm)

  • 239283 11/20/11 12:01  magee          Target: Mid-day screenshot

  • 239262 11/20/11 09:57  magee          Target: 15k coolant alarm strip chart

  • 239261 11/20/11 09:49  magee          Target: Alarms: 15k coolant return,, downstream beam right dummy target temp

  • 239258 11/20/11 09:39  magee          Target: LH2 target in

  • 239239 11/20/11 07:53  Adesh          Target: Owl shift screenshot

  • 239162 11/20/11 00:11  Mitra          Target: screen shots

    • Saturday

  • 239157 11/19/11 23:53  Mitra          Target: Vertical adjustment of DS-centering-hole

  • 239151 11/19/11 23:36  Mitra          Target: adjusting the DS-centering-hole horizontally

  • 239140 11/19/11 23:10  Mitra          Target: DS-centering-hole adjustment

  • 239131 11/19/11 22:52  Mitra          Target: DS-Centering-hole

  • 239128 11/19/11 22:40  Mitra          Target: US-Centering-hole adjustment

  • 239117 11/19/11 21:45  Mitra          Target: Horizontal motion (Late entry)

  • 239105 11/19/11 20:21  Mitra          Target: US-Centering-hole

  • 239064 11/19/11 17:26  smithg         Target: Target status available now on your browser

  • 239052 11/19/11 16:12  Mitra          Target: Moved target to home

  • 239045 11/19/11 15:12  smithg         Target: chamber vacuum getting a little worse

  • 239013 11/19/11 09:30  smithg         Target: parked tgt even more

  • 239007 11/19/11 06:55  manos          Target: Owl shift screenshot

  • 239001 11/19/11 05:11  manos          Target: Small 4K OUT T oscillations

    • Friday

  • 238931 11/18/11 19:08  smithg         Target: qtor valves we closed

  • 238913 11/18/11 17:30  Mitra          Target: Alarm

  • 238900 11/18/11 16:45  MitraS         Target: screen snapshots

  • 238888 11/18/11 15:28  covrig         Target: vacuum jitters correlated with 4K supply pressure jitters

  • 238794 11/18/11 07:56  Adesh          Target: End of the owl shift screenshot

  • 238766 11/18/11 02:32  Adesh          Target: Gate valve alarm

  • 238764 11/18/11 01:13  Adesh          Target: False(?) beam dump vacuum alarm

    • Thursday

  • 238722 11/17/11 16:14  smithg         Target: end of shift screen grab

  • 238720 11/17/11 16:03  smithg         Target: parking some

  • 238717 11/17/11 15:34  smithg         Target: loosened heater alarmcountfilter

  • 238710 11/17/11 14:18  smithg         Target: readback noise on the high power heater

  • 238693 11/17/11 11:51  smithg         Target: Target motion seems ok again

  • 238692 11/17/11 11:42  smithg         Target: Leak is at tgt, may be leveling off

  • 238688 11/17/11 10:58  covrig         Target: there seems to be a leak in the system

  • 238675 11/17/11 07:52  Adesh          Target: End of the owl shift screenshot

  • 238674 11/17/11 07:18  Adesh          Target: High Alarm for target upstream ionchamber

  • 238673 11/17/11 06:36  Adesh          Target: Raster Y current alarm

    • Wednesday

  • 238653 11/16/11 23:56  manos          Target: Target status and screenshot

  • 238650 11/16/11 23:00  smithg         Target: 4K instabilities for tonight

  • 238648 11/16/11 21:51  manos          Target: No alarms after call to MCC

  • 238645 11/16/11 21:20  manos          Target: Transient Scattering chamber vacuum alarms

  • 238644 11/16/11 20:54  smithg,covri   Target: cooldown completed

  • 238640 11/16/11 19:30  smithg         Target: sweaty U-tube OK now

  • 238639 11/16/11 19:27  smithg         Target: Target motion problem: leave out of beam for now

  • 238596 11/16/11 14:25  smithg, silv   Target: starting to liquify

  • 238545 11/16/11 10:05  smithg         Target: Turned on H2 pump & heaters

  • 238536 11/16/11 09:10  smithg         Target: Pre-cooled to 30K. Flowing 4K thru bypass now.

    • Tuesday

  • 238464 11/15/11 17:30  smithg         Target: pre-cooling status: good!

  • 238445 11/15/11 16:01  smithg         Target: turned on evaporator

  • 238439 11/15/11 14:20  smithg         Target: Beginning pre-cooling of the target

  • 238438 11/15/11 14:04  smithg         Target: ready for cooldown

    • Monday

  • 238335 11/14/11 12:42  smithg         Target: target gas status

    • Sunday

    

    Saturday
    

    

    Friday
    

  • 238165 11/11/11 16:02  smithg         Target: target gas problem

  • 238130 11/11/11 09:48  covrig         Target: opened 4K JT to 80%

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    Thursday
    

    

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    Friday
    

    

    Thursday
    

    

    Wednesday
    

    

    Tuesday
    

  • 237638 11/01/11 10:05  Adesh          Target: Replaced broken/flaky temperature sensors in the dummy target ladder