PreviousRunPlanDaily

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This has the previous daily run plans found here RunPlanDaily

Daily Run Plan for PREX   (latest at bottom)
Date (2010) Shift ---------- Activity (Responsible) ---------- --- Status ---
03/19 Day pump down; Møller, Compton, septum install; Q2 repair

Insert sieve. (Techs)

done
03/19 Swing Beam restore (B-team) done
03/20 Owl
  • Septum checkout (Michaels: Page when beam imminent & spectrometer ready)

also:

  • Initial look at low current cavity monitors (Ahmed: Page when beam imminent & spectrometer ready)
  • Target alignment (Michaels)
  • VDC checkout (Michaels)
  • Quartz detectors checkout (McNulty, Wexler -- page when VDC tracks seen)
  • GEM checkout (Camsonne -- page when VDC tracks seen, if left dipole is operating)
done

All at 1-2 µA.
Scattered energy ~ beam energy = 1.063 GeV.
Quad settings:

  • Right arm:
    • Q1: dI/dP= 411.2474 Amps/GeV/c
    • Q2: dI/dP= 436.2014 Amps/GeV/c
    • Q3: dI/dP= 433.3897 Amps/GeV/c
  • Left Arm:
    • Q1: dI/dP= 419.8772 Amps/GeV/c
    • Q2: dI/dP= 435.6273 Amps/GeV/c
    • Q3: dI/dP= 434.9682 Amps/GeV/c

"Usual" polarity

03/20 Day Beam off & hall open 9:00 am

Quads repair; Compton install; GEM install; signals debugging. Leave sieves in. (Techs)

done
03/20 Swing
  • Close up hall
  • Benesch tuning (1/2 - 2 hours)
  • Verify quad polarities (Camsonne)
  • Cavity monitors basic function test (Ahmed)
  • Low current cavity monitors setup (Musson, Ahmed)
done
3/21 Owl
  • Low current cavity monitors setup (Musson, Ahmed)
  • Access for GEM installation (Camsonne)
done but GEMs not ready
3/21 Day
  • Spectrometer checkout:
    • Quartz detectors checkout (McNulty, Wexler)
    • Lumi checkout (Mercado) (2 µA on Ta)
    • GEM checkout (Camsonne?)
  • A line tuning (Benesch)
  • Raster checkout
  • Access:
    • Low current cavities
    • Target position
    • Quartz
    • Scintillator alignment
    • LQ2
done
3/21 Swing
  • Low current cavity monitors setup (Michaels, Ahmed)
  • Remove sieves
  • Initial look at sieve out data
  • Replace sieves
done
3/22 Owl
  • Pointing measurement (Riordan)
  • Remove sieves
  • Repeat pointing measurements with no sieves
  • If done or unable to continue before 4 am page Luis Mercado to do lumi checks
  • After 4 am page Dustin McNulty for detector work
done
3/22 Day
  • Optics (Liyanage) Sieve OUT. NB Current limit 2 uA!
done
3/22 Swing
  • Optics continued, sieve IN. NB Current limit 2 uA! (Shift Crew)
done
3/23 Owl
  • Quartz detectors resolution studies (KK, Dustin, John W)
  • Lumi studies (Luis)
done
3/23 Day
  • Remove water target. (Target, Techs)
  • Reconfigure Moller cryo.
  • Beam studies ~ 2pm, study of helicity correlated position differences for spin flipper states. (Dalton, Rupesh, Reza)
water cell removed, rest not finished
3/23 Swing
  • Target pumpdown
done
3/24 Owl
  • Target pumpdown
done
3/24 Day
  • Target cooldown
done
3/24 Swing
  • Tune high current beam into Hall A
done
3/25 Owl
  • Commission lead target, 50 uA (Bob)
  • Lumis and oversampling tests (KK, Luis, Paul)
in progress
3/25 Day
  • Access to fix left dipole
done
3/25 Swing
  • Parity Quality commissioning (Kent, Rupesh, Luis, Dustin)
  • Beam monitor calibrations (Diancheng Wang, Xiaoyan Deng)
postponed
3/26 Owl
  • High Luminosity Detector Commissioning
in progress
3/26 Day
  • Moller Checkout
postponed
3/26 Swing
  • High Current on C12 (thick and thin)
partly done
3/27 Owl no beam
3/27 Day no beam
3/27 Swing
  • High-current on thick C12, adjust HV (Luis or Bob)
  • Finish the commissioning of thick Pb target (Bob, Ahmed)
  • Electronic Commissioning (KK, Luis, Paul, Jon et al)
done, high-current tests continue
3/28 Owl
  • Continue with the above, if necessary.
  • High Luminosity Commissioning (Rupesh, Luis, Jon, Bob)
  • BCM/BPM calibration (Rupesh)
  • Establishing Parity Measurements, Charge feedback, blinding (Rupesh, Jon)
not finished
3/28 Day
  • Comparison Study of Optics Tunes (Seamus, Nilanga, Kiad)
  • Sometime before Monday, submit the ATLIS plan for Dithering test (Rupesh)
done
3/28 Swing
  • Continue Optics if necessary.
  • Continue High Luminosity Commissioning
done
3/29 Owl
  • Mini-production run (shift crew)
  • Stop beam at 07:00 or whenever Ed Folts asks to.
done
3/29 Day
  • Open Hall A to set up Moller and Compton (Ed Folts, Sasha, Sirish, et.al.)
  • Work on GEMs (Alex, Seamus, et.al.)
  • MCC to do beam studies while Hall A open
  • Detector linearity/LED tests (Luis)
  • Setup WAC analysis (Mark, Mindy)
done
3/29 Swing
  • Moller magnet cooldown
  • Optics and acceptance studies (Seamus, Ahmed, Nilanga)
done
3/30 Owl
  • Commission charge feedback (Mark)
  • Current monitor calibration and pedestals determination (Mark)
  • Quasi-production on Empty Target (owl shift crew)
done
3/30 Day
  • Access do work on Moller and Compton.
  • Some GEM installation work. (Alex, Seamus, Kiad, Nilanga)
  • Possible linearity/LED study. (Luis)
done, except linearity
3/30 Swing
  • First Commissioning of Moller -- Beam Checks (Sasha, Javier, Roman, Jay)
done
3/31 Owl
  • Scans of Septum and quad Q1 for tunes A and B. (Bob)
  • Beam Studies of Helicity Correlations
done
3/31 Day
  • Beam Tuning (Jay Benesch)
done
3/31 Swing
  • Either or both of these:
  • a) Moller Commissioning (Sasha, Javier, Roman, Jay)
  • b) Tests of Dithering and other Beam-Related things (Kent, Rupesh)
Moller was done
4/1 Owl
  • If Kent's tests not done on Swing, continue here. (Kent, Rupesh)
  • Beam and Septum scan with new tune (Seamus)
  • Helicity-correlated beam studies (Shift crew)
done
4/1 Day
  • Beam Tuning (Jay)
done, successful
4/1 Swing
  • More beam tuning if necessary
  • Moller Commissioning
done
Friday 2 April Owl
  • Assuming the HRS tune has been frozen
  • Check detector alignment
  • A_T studies
  • Q2 Measurements
partly done, needs more work
Friday 2 April Day
  • Tuning Beam for Compton
done
Friday 2 April Swing
  • 20:00 Obtain sieve runs (optics mini-run plan), Q2 measurements (Bob)
done, but not Q2
Saturday 3 April Owl
  • Obtain sieve runs on Ta (Nilanga mini-run plan)
  • Put in Lead target at low current and do counting-mode runs (Rupesh, Ahmed)
  • Integrate-mode with Lead at 2 or 3 uA (Luis, Jon)
done
Saturday 3 April Day
  • Moller Commissioning (priority activity)
  • Work on getting into production mode (Mark, Rupesh)
done, but not yet in prod.
Saturday 3 April Swing
  • Moller commissioning
done
Sunday 4 April Owl
  • Counting data on tune Y (right arm) super-thin carbon
  • Change to tune B
  • Integrate-mode with Lead at 2 or 3 uA (Luis, Jon)
done
Sunday 4 April Day
  • Integrate-mode with thick carbon 50 uA
  • Compton QWP1 calibration.
done
Sunday 4 April Swing
  • General Compton commissioning and pseudo-production (empty target) parity data at 50 uA.
done
Monday 5 April Owl
  • pseudo-production (empty target) parity data and Compton data at 50 uA.
done
Monday 5 April Day
  • 12:00 Jay to run optics test (~ 30 mins)
  • Moller Spin Dance
  • Set up vertical polarization and measure A_T
done
Monday 5 April Swing
  • Continue to setup up vertical polarization
  • Measurements of A_T on Pb and C12
done
Tuesday 6 April Owl
  • Continue measurements of A_T on Pb and C12
partly done
Tuesday 6 April Day
  • Possible horizontal scan: Tune B with sieve slit (Seamus)
  • When ready: Relocate Quartz Detectors (Dustin, Jack)
postponed: vacuum problems
Tuesday 6 April Swing
  • In restricted access.
  • Any activities that require access.
  • Shift canceled
Wednesday 7 April Owl
  • Shift cancelled
Wednesday 7 April Day
  • Shift cancelled
  • Investigate target vacuum problem
  • Move quartz detectors (Dustin, Jack)
Leak found at O-ring connection between target chamber and collimator box
Wednesday 7 April Swing
  • Shift cancelled
Thursday 8 April Owl
  • Shift cancelled
Thursday 8 April Day
  • Shift cancelled
Target chamber open, found that the 4th foil in Optics target blown off
Thursday 8 April Swing
  • Shift cancelled
Friday 9 April Owl
  • Shift cancelled
Friday 9 April Day
  • To be determined.
  • When ready: Install GEMs
Friday 9 April Swing
  • Cancelled
Saturday 10 April Owl
  • Cancelled
Saturday 10 April Day
  • Cancelled
Saturday 10 April Swing
  • Cancelled
Sunday 11 April Owl
  • Cancelled
Sunday 11 April Day
  • Cancelled
Sunday 11 April Swing
  • Cancelled
Monday 12 April Owl
  • Cancelled
Monday 12 April Day
  • Cancelled
Monday 12 April Swing
  • Cancelled
Tuesday 13 April Owl
  • Cancelled
Tuesday 13 April Day
  • Cancelled
Tuesday 13 April Swing
  • Cancelled
Tungsten collimator modified and installed. Target pump down started and initially successful.
Wednesday 14 April Owl
  • Cancelled
Target pump down.
Wednesday 14 April Day
  • Cancelled -- no shift workers (might need a TO)
  • Target pump down and leak checking.
  • When ready, begin target cooldown. (Dave Meekins and JP)
Done. Vacuum good. Target cold.
Wednesday 14 April Swing
  • Beam restore in Hall A
  • Harp Scan - Shifters
  • Raster size scan (goal is 3x3mm on empty cell) - Shifters.
  • Detector Alignment - Dustin
  • Dithering run with Septum On/Off - Rupesh.
Thursday 15 April Owl
  • Thick Carbon Integrating Mode Run - Rupesh.
  • Thick Carbon Dithering Run - Rupesh + Luis.
  • Take Access: Change to counting mode and put sieve in - Ahmed.
Thursday 15 April Day
  • Beam Studies -- establishing good beam in Hall A and Compton (Jay and B team)
Thursday 15 April Swing
  • Detector Alignment - Dustin.
  • Pb Alignment - Bob.
  • Take access and put sieve in - Seamus.
  • Sieve Alignment - Seamus.
  • Take Access to remove sieve (Seamus) + switch to integrating mode (Jon) - Page Guy and Bob.
  • Heat load test (run up to 500C) - Bob + Guy.

If possible, depending on heat load test:

  • Relative Rate 12C/Pb Runs - Bob / Dustin.
  • Start production (Rupesh, Luis, Kent, Krishna)
Friday 16 April Owl
  • Production
Friday 16 April Day
  • Production
Friday 16 April Swing
  • Production @ 40uA
  • Ramp up to 50uA (Guy + Bob)
Saturday 17 April Owl
  • Production @ 50uA
Saturday 17 April Day
  • Production @ 50uA
  • Moller Checks + Measurement Starting 9am (Sasha)
Saturday 17 April Swing
  • Moller till 7pm (Sasha).
  • Compton (Jay Benesch + Megan).
  • Production @ 50uA.
Sunday 18 April Owl
  • Production @ 50uA
Sunday 18 April Day + Swing
  • Production @ 50uA.
  • Staring 3pm:
  1. Compton test (Jay Benesch + Megan).
  2. Page Dustin + Jon + Bob + Sasha.
  3. Q^2 Measurement (Bob)
  4. Call Compton Experts
  5. Access:
    1. Refill Moller Magnet.
    2. Check Compton HV.
    3. Remove S0.
    4. Go to counting mode (Dustin).
    5. Compton Stuff.
    6. Detector Mapping (Jon).
  6. Detector Alignment (Dustin).
  7. Q^2 Measurement (Bob).
  8. Relative Rate Measurement (Bob).
  9. Access to Return to Integrating Mode.
  • Production @ 50uA
Monday 19 April Owl
  • Production @ 50uA
Monday 19 April Day
  • Production @ 50uA
Monday 19 April Swing
  • Production
Tuesday 20 April Owl
  • Production
Tuesday 20 April Day
  • Production
  • Beam studies from approx. 11 am to 2 pm
  • Hall A Activities:
  • -- Compton 1/4wave stepper (Abdurahim)
  • -- Check R-HRS Q2 and switch to remote mode (Heidi)
  • -- Adjust R-HRS A_T (Dustin)
  • -- Take pedestal data (Jon)
  • -- Check 4th GEM and possibly install 5th (Alex, Jon)
  • -- Test motion of A_T detector R-HRS (Jon)
  • -- Possible Compton shielding / HV check (Megan)
  • -- Ramp Moller magnet, measure stray fields. (Sasha)
  • -- Parasitic work on floor (Yi Qiang)
Tuesday 20 April Swing
  • Tune up Compton
  • Production
Wednesday 21 April Owl
  • Production
Wednesday 21 April Day
  • Production
Wednesday 21 April Swing
  • Production
Thursday 22 April Owl
  • Production
Thursday 22 April Day
  • Beam studies. Transverse Phase Space Study in Wien. (Reza, Mark, Rupesh)
  • At ~2 pm start Moller commissioning
Thursday 22 April Swing
  • Finish Moller (10 hours)
  • Resume Production
  • Don't forget the beam recovery procedure
Friday 23 April Owl
  • Production
Friday 23 April Day
  • Q2 Studies (3 hrs) -- Dustin, Bob
  • GEM studies are only parasitic.
Friday 23 April Swing
  • Production
Saturday 24 April Owl
  • Production on thick C12
Saturday 24 April Day
  • Production on thick C12
  • At about 2 pm switch to 120 Hz, still C12
  • Run briefly on C12 at 120 Hz
  • Switch to thick Pb target (120 Hz)
Saturday 24 April Swing
  • Production on Pb at 120 Hz
Sunday 25 April Owl
  • Production
Sunday 25 April Day
  • Q2 measurements - Bob, Dustin
  • Otherwise production
done
Sunday 25 April Swing
  • Production
Monday 26 April Owl
  • Production
Monday 26 April Day
  • Wien flip
Wien flip postponed until Tues
Monday 26 April Swing
  • Production
Tuesday 27 April Owl
  • Production
Tuesday 27 April Day
  • Beam Studies
  • Wien Flip
  • Checks of laser at polarized source (Kent and EGG)
  • Adiabatic Damping Study (Yves Roblin)

Done

Tuesday 27 April Swing
  • Compton Tune
  • 4 hrs on Thick Carbon (RD=0, IT=500us)
  • flip half-wave plate
  • 4 hrs on Thick Carbon
Wednesday 28 April Owl
  • Finish Swing Plan
  • Yves Roblin Measurement (if possible)
  • Run on Carbon (RD=0, IT=1535)
Wednesday 28 April Day
  • Moller
Wednesday 28 April Swing
  • Finish Moller
  • Production
Thursday 29 April Owl
  • Production
Thursday 29 April Day
  • Production
Access to repair target leak
Thursday 29 April Swing
  • Production
Could not close hall due to faulty fire suppression system
Friday 30 April Owl
  • Production
Could not close hall due to faulty fire suppression system
Friday 30 April Day
  • 08:00 Beam Stops for Open House
Friday 30 April Swing
  • No Beam
  • Injector studies
Friday 30 April Owl
  • No Beam
  • Injector studies
Saturday 1 May Day
  • Open House
  • Detector work
  • Compton work
Saturday 1 May Swing
  • Restore Beam.
  • Check Beam Properties. (shift)
  • Pulsed Beam Test. (Mark, Luis)
Sunday 2 May Owl
  • Continue with Above Tests
  • Raster and Pb Target Tests (Bob)
Sunday 2 May Day
  • Continue Above Tests if necessary
  • Start Production
  • Get cavities to work at high current. (Ahmed)
  • (The check of cavities at low current is postponed.)
Sunday 2 May Swing
  • Production
Monday 3 May Owl
  • Production
Monday 3 May Day
  • Pass change 3 -> 5 for Hall B until ~1:00PM
  • Compton vacuum, LHRS dipole UPS replacement during the down
  • Return to PbD #2 production
Monday 3 May Swing
  • Production
Tuesday 4 May Owl
  • Production
Tuesday 4 May Day
  • Beam studies
  • Installation of new switch for Pockels cell (as per Kent)
  • 8 hour Compton beam line bake-out, leak check
Tuesday 4 May Swing
  • Production