[BTeam] Afternoon Update: Winter Storm Octavia derails CEBAF restoration
Arne Freyberger
freyberg at jlab.org
Mon Feb 16 15:42:57 EST 2015
Winter Storm Octavia has derailed the beam restoration. It has been a
challenging day with several hardware issues preventing progress in the
morning and then some re-evaluation of the injector setup in the
afternoon. Due to the expected harsh conditions brought on by Winter
storm Octavia, CEBAF will transition to Hot Standby this afternoon and
remain in that state until the lab re-opens. Presently this is planned
for Wednesday morning. Below is the complete plan. Items marked with
[x] are complete, [ ] items are not yet complete.
Clearly some attention needs to be paid to the post-Wed plan. I'll
work on that while the snow accumulates. But briefly, we will not have
a maintenance day this week.
Arne
Spring 2015 Startup Evolution
1 Spring 2015 StartUp OPS
1.1 Spreadsheet
* Run Spread Sheet
<https://docs.google.com/spreadsheets/d/1AMVnjOjYZAqxLSQI_bzgt4cbmZlRY0DIh6uUaYCadPk/pubhtml>
* Please send me your gmail address if you wish to have edit privileges
1.2 |[0/7]| Deferred tasks - DEFERRED not FORGOTTEN!
* |[ ]| Calibrate INJ sync light monitor (Freyberger)
o *deferred until after Inj. SLM is aligned (Tuesday DAY)*
* |[ ]| Inj. Energy spread via Inj SLM (Freyberger)
o *deferred until after Inj. SLM is aligned (Tuesday DAY)*
* |[ ]| Repeat Energy Spread measurement at Spectrometer dump
o *deferred*
* |[ ]| re-measure Injector Emittance/TWISS
o *defer to after 0L04 phasing*
* |[ ]| Measure Inj. Chicane M56 (Krafft)
o *defer until ???*
* |[ ]| Arc1 M56 = 0
o *deferred to later*
* |[ ]| 2E emittance/TWISS measurement
o Match calculated offline, to be loaded Tuesday Day shift
o *deferred to later*
1.3 2015-02-11 Wed
1. |[1/1]| Owl
* |[X]| SSO
2. |[2/2]| Day
* |[X]| Punch list shift
* |[X]| NL restricted for Klystron work
3. |[4/4]| Swing
* |[X]| Sweep machine and lock up
* |[X]| Sweep and post all service buildings
* |[X]| Soak RF
* |[X]| Soak Mag
1.4 2015-02-12 Thu
1. |[3/3]| Owl
* |[X]| Sweep and post all service buildings (if not done yet)
* |[X]| Soak RF, random RF settings
* |[X]| Soak Mag, random MAG settings
2. |[4/4]| Day
* |[X]| Sweep and post all service buildings (if not done yet)
* |[X]| Soak RF, LEM 950
* |[X]| Soak Mag, Download EDT values
o Feb2015 startup, design BDLs for the entire machine
<https://logbooks.jlab.org/entry/3319685>
o Feb2015_zero_correctors.snap
<https://logbooks.jlab.org/entry/3319688>
o Feb2015_doglegs.snap <https://logbooks.jlab.org/entry/3319686>
* |[X]| 2-3pm Inj tour
3. |[2/2]| Swing
* |[X]| Soak RF/Mag at design settings
* |[X]| Inj Model Studies
1.5 2015-02-13 Fri
1. |[1/1]| Owl
* |[X]| Soak RF/Mag at design settings
2. |[5/5]| Day
* |[X]| Soak ALL RF/Mag at design settings
* |[X]| Warm RF setup
* |[X]| set Wien angle to: 45 degrees
* |[X]| A1/A2 Transmission Optimization
o Needs 2nd verification during Swing shift
* |[X]| keV bunchlength measurement (Poelker/Ahmad)
o |[X]| Laser A 3320420
<https://logbooks.jlab.org/entry/3320420> 3320420
<https://logbooks.jlab.org/entry/3320420> 3320422
<https://logbooks.jlab.org/entry/3320422> 3320425
<https://logbooks.jlab.org/entry/3320425> 3320427
<https://logbooks.jlab.org/entry/3320427>
3. |[8/8]| Swing
* |[X]| Soak ALL RF/Mag at design settings (cont)
* |[X]| keV bunchlength measurement (Poelker/Ahmad)
o |[X]| Laser B 3320432
<https://logbooks.jlab.org/entry/3320432>, *Laser B Amp Failed*
o |[X]| Laser C 3320433 <https://logbooks.jlab.org/entry/3320433>
* |[X]| FC1 Transmission 3320439
<https://logbooks.jlab.org/entry/3320439>
* |[X]| Phase 0L02 (on Krest)
* |[X]| bunch length optimization via bunch length tool
o 3320446 <https://logbooks.jlab.org/entry/3320446>
* |[X]| Beam to FC2/Mott
o 3320452 <https://logbooks.jlab.org/entry/3320452>
* |[X]| Beam to Inj. Spectrometer
* |[X]| Phase 0L03 & 0L04 (place on Krest)
o Measure/Set Energy 3320461
<https://logbooks.jlab.org/entry/3320461>
o Measure Energy Spread 3320468
<https://logbooks.jlab.org/entry/3320468>
1.6 2015-02-14 Sat
1. |[4/4]| Owl
* |[X]| Soak RF/Mag at design settings
* |[X]| beam to inline dump (OPS)
o elog: 3320475 <https://logbooks.jlab.org/entry/3320475>
3320477 <https://logbooks.jlab.org/entry/3320477>
* |[X]| Commission INJ sync light monitor (Freeman)
o elog: 3320505 <https://logbooks.jlab.org/entry/3320505>
* |[X]| CW Inline dump dwell and drift study (10 μ A CW
* CHL1 tripped off
2. |[6/8]| Day
* |[X]| Resolve NL PSS/RF issues
* |[X]| Soak RF/Mag at design settings
* |[X]| Commission INJ sync light monitor (Freeman/Freyberger)
o *Need to move camera down 5-7mm. Tuesday?*
o Until camera is moved, beam has to be moved up in order to
see it on the SLM camera.
o elogs: 3320518 <https://logbooks.jlab.org/entry/3320518>
3320516 <https://logbooks.jlab.org/entry/3320516>
* |[X]| *10am* Mott A/D laser phasing (Grames/Riad)
o elog: 3320570 <https://logbooks.jlab.org/entry/3320570>
* |[X]| 6.3MeV/c emittance measurements (Grames)
o elog: 3320537 <https://logbooks.jlab.org/entry/3320537>
* |[X]| Set Inj Chicane M56=-24cm
* |[ ]| Calibrate INJ sync light monitor (Freyberger)
o *deferred until after Inj. SLM is aligned (Tuesday DAY)*
* |[ ]| Inj. Energy spread via Inj SLM (Freyberger)
o *deferred until after Inj. SLM is aligned (Tuesday DAY)*
3. |[5/6]| Swing
* |[X]| Resolve NL PSS/RF issues
* |[X]| Soak RF/Mag at design settings
* |[X]| emittance measurements in Injector chicane
(Hofler/Kazimi/Freyberger/Spata)
o |[X]| Horizontal 3320582
<https://logbooks.jlab.org/entry/3320582> 3320581
<https://logbooks.jlab.org/entry/3320581> 3320585
<https://logbooks.jlab.org/entry/3320585>
o |[X]| Vertical 3320590
<https://logbooks.jlab.org/entry/3320590> 3320594
<https://logbooks.jlab.org/entry/3320594>
o |[X]| Calculate Match 3320677
<https://logbooks.jlab.org/entry/3320677> 3320681
<https://logbooks.jlab.org/entry/3320681>
* |[X]| Beam to Spectrometer
* |[X]| Bunch length measurements via back phasing (reference ATlis:
1.
2. elogs: 3320601 <https://logbooks.jlab.org/entry/3320601>
3320603 <https://logbooks.jlab.org/entry/3320603> 3320635
<https://logbooks.jlab.org/entry/3320635>
* |[ ]| Repeat Energy Spread measurement at Spectrometer dump
o *deferred*
1.7 2015-02-15 Sun
1. |[4/4]| Owl
* |[X]| Soak RF/Mag at design settings
* |[X]| Back to inline dump
* |[X]| Beam to 1R
* |[X]| NL phasing
2. |[5/7]| Day
* |[X]| NL phasing
* |[X]| Load in Injector Match values
o elogs: 3320684 <https://logbooks.jlab.org/entry/3320684>
3320685 <https://logbooks.jlab.org/entry/3320685> 3320686
<https://logbooks.jlab.org/entry/3320686>
* |[ ]| re-measure Injector Emittance/TWISS
o *defer to after 0L04 phasing*
* |[X]| restore beam to 1R
* |[ ]| Measure Inj. Chicane M56 (Krafft)
o *defer until ???*
* |[X]| ORFP
* |[X]| 1E emittance/TWISS measurements (Tief?/Spata?)
o Match calculated offline, to be loaded Tuesday Day shift
o harp scans accumulated, harpAnalyzer needed to be modified
so that it would find and fit peaks.
o elogs: 3320724 <https://logbooks.jlab.org/entry/3320724>
3320723 <https://logbooks.jlab.org/entry/3320723>
3. |[3/3]| Swing
* |[X]| SL phasing
* |[X]| Beam to 2R
* |[X]| ORFP
1.8 2015-02-16 Mon
1. |[3/6]| Owl
* |[X]| Beam to 2R
o Had difficulty making the gradient, ran Fudge to its limits.
Had to re-Lem with an adjusted energy target. RF Gradient
calibration issue?
o elog: 3320760 <https://logbooks.jlab.org/entry/3320760>
* |[X]| ORFP
* |[ ]| Arc1 M56 = 0
o *deferred to later*
* |[ ]| 2E emittance/TWISS measurement
o Match calculated offline, to be loaded Tuesday Day shift
o *deferred to later*
* |[ ]| Extract 1-pass to BSY dump
o attempted but had configuration issues.
o Issue identified and extraction will be first thing on Day
shift.
* |[X]| Optimize Inj. bunching/phasing(0L04)- First Look
o elog: 3320766 <https://logbooks.jlab.org/entry/3320766>
3320768 <https://logbooks.jlab.org/entry/3320768> 3320769
<https://logbooks.jlab.org/entry/3320769> 3320770
<https://logbooks.jlab.org/entry/3320770>
2. |[1/1]| Day
* |[X]| CEBAF Down hard for several hours for various hardware issues
* |[ ]| Re-visit Injector setup. Energy tails are present on the
beam.
3. |[0/1]| Swing
* |[ ]| *Hot Standby*
1.9 2015-02-17 Tue
1. |[0/1]| Owl
* |[ ]| *Hot Standby*
2. |[0/1]| Day
* |[ ]| *Hot Standby*
3. |[0/1]| Swing
* |[ ]| *Hot Standby*
1.10 2015-02-18 Wed
1. |[0/1]| Owl
* |[ ]| *Hot Standby*
* |[ ]| Prep for resumption of beam delivery
2. |[0/6]| Day
* |[ ]| Short controlled access into NL
o |[ ]| Inj. Sync. Light Alignment
o |[ ]| Verification of Yao cavity electronics installation
* |[ ]| Recover CEBAF
* |[ ]| 1-pass to BSY dump
* |[ ]| Go CW!
* |[ ]| Optimize Inj. bunching/phasing(0L04)
o Kazimi
o Tief
o Ahmad Mahmoud
* |[ ]| Bunch length measurement via Inj SLM
* |[ ]| Bunch length measurement via Arc1 SLM
* |[ ]| Energy Spread via Inj and Arc1 SLM
3. |[0/3]| Swing
* |[ ]| CW 1-pass to BSY Dump
* |[ ]| RTI test at 2GeV, 125MHz rep. rate.
o 50μ A avg. beam current
o 125MHz rep.rate
o bunch charge equivalent to 200μ A at 499MHz repetition rate
* |[ ]| or lower machine to 1GeV per pass
o 100μ A avg. beam current
o 249.5MHz repetition rate
o bunch charge equivalent to 200μ A at 499MHz repetition rate
1.11 2015-02-19 Thu
1. |[0/2]| Owl - BS
* |[ ]| RTI test
* |[ ]| restore CEBAF to configuration energy
2. |[0/4]| Day
* ||
* |[ ]| restore CEBAF to configuration energy
* |[ ]| load 1E and 2E match
* |[ ]| beam back to 2R
3. |[0/6]| Swing
* |[ ]| beam to 3R,4R
* |[ ]| ORFP
* |[ ]| ARC[1..3] M56 = 0
* |[ ]| beam to 5R,6R
* |[ ]| ORFP
* |[ ]| ARC[4..5] M56 = 0
1.12 2015-02-20 Fri
1. |[0/4]| Owl
* |[ ]| beam to 7R, 8R
* |[ ]| ORFP
* |[ ]| beam to 9R, AR
* |[ ]| ORFP
2. |[0/4]| Day
* |[ ]| auto-quad commissioning (Joyce)
* |[ ]| pathlength calculator commissioning (Joyce)
* |[ ]| beam to 5C dumplet
* |[ ]| E[3..A,5C] emittance/TWISS measurements
o match calculated offine.
3. |[0/3]| Swing
* |[ ]| Magnetic 5-pass extraction to 1C dumplet
* |[ ]| 1C (5-pass) emittance/TWISS measurement
* |[ ]| Magnetic (or RF) 1-pass extraction to 2C dumplet
1.13 2015-02-21 Sat
1. |[0/3]| Owl
* |[ ]| Magnetic (or RF) 1-pass extraction to 2C dumplet
* |[ ]| Skew search (part of ATlis: 14931
<http://opsweb.acc.jlab.org/CSUEApps/atlis/task/14931>)
* |[ ]| 2C (1-pass) emittance/TWISS
2. |[0/5]| Day
* |[ ]| *punch list, limited access AM?*
* |[ ]| load match values where appropriate
* |[ ]| Beam back to 5C dumplet
* |[ ]| ORFP check
* |[ ]| ORFP second iteration
o interleaved with quad centering
3. |[0/2]| Swing
* |[ ]| Beam to 5C
* |[ ]| ORFP w/ quad centering
1.14 2015-02-22 Sun
1. |[0/2]| Owl
* |[ ]| Beam to 5C
* |[ ]| ORFP w/ quad centering
2. |[0/2]| Day
* |[ ]| Beam to 5C
* |[ ]| ORFP w/ quad centering
3. |[0/2]| Swing
* |[ ]| Beam to 5C
* |[ ]| ORFP w/ quad centering
1.15 2015-02-23 Mon
1. |[0/2]| Owl
* |[ ]| Beam to 5C
* |[ ]| ORFP w/ quad centering
2. |[0/5]| Day
* |[ ]| 5-pass to 1C dumplet
* |[ ]| emittance/TWISS measurements again
* |[ ]| 1-pass to 2C dumplet
* |[ ]| emittance/TWISS measurements again
* |[ ]| Three beam setup, Injector
3. |[0/2]| Swing
* |[ ]| Three beam setup, Injector → dumplets
* |[ ]| RTI 2nd try?
1.16 2015-02-24 Tue
1. |[0/1]| Owl
* |[ ]| RTI 2nd try?
2. |[0/2]| Day
* |[ ]| load 2C match values
* |[ ]| load 1C match vales
Author: Arne Freyberger
Created: 2015-02-16 Mon 15:23
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--
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab
12000 Jefferson Avenue Cell: (757) 876-6289
Postal Suite 19 Email: freyberg at jlab.org
Newport News, VA 23606
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