Run plan history

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PREX Main << Run Coordinator Tools << RunPlanDaily

Copy weekly run plan tables here.


Day, Date Shift Tasks (Responsible Party) Status
Friday, June 14 Owl
Day
Swing
Monday, June 17 Owl
Day Last day for planned collaboration work in Hall. Expecting 2A alignment
Swing Vacuum connections between US pipe and target and between target and collimator box.
Tuesday, June 18 Owl
Day Pump down the entire pivot to dump region; Expecting 2B alignment
Swing Target software checks
Wednesday, June 19 Owl
Day Hall Closed. Final Checklist. Possible first beam in Hall A
Swing Continue beam in Hall A for tuning. Start low beam checkout.
Thursday, June 20 Owl Continue low beam current checkout. Completed Collimator search.
Day Tuning
Swing Tune up and Low current commissioning.
Friday, June 21 Owl Low current commissioning. Started optics Commissioned 45deg and 90deg targets. Calibrated ion chambers. Bullseye scan.
Day High current + Compton rate tuning.
Swing High current calibration after tuning (Caryn). Low current commissioning. Restart Optics (Seamus, Sanghwa, Ryan) Basic run quality plot macro needed (Sanghwa).
Saturday, June 22 Owl Opportunistic: Beam Modulation (Paul K, Vectoria) ESR 15K helium issue, scattering chamber vacuum degration investigation
Day Optics.
Swing Low current cavity (Ye, Cip). Minimum chase.
Sunday, June 23 Owl Inner edge search (Bob, Chandan, Kent). Q2 measurement with Pb target (Bob?). Opportunistic: Beam Modulation (Paul K, Vectoria) Inner edge search DONE.
Day Minimize width.
Swing Minimize width. Minimum chase.
Monday, June 24 Owl Quartz align; quartz rate. (Dustin)
Day Optics verification. ESR 15K helium repair is ongoing.
Swing No beam.
Tuesday, June 25 Owl No beam. shift cancelled.
Day Target cooling down. shift cancelled
Swing Optics. Vacuum issue. No beam for the whole shift.
Wednesday, June 26 Owl Optics.
Day Optics. Send beam through Compton chicane. Optics complete. Vacuum valve VBV1P03 (compton table) can't be opened.
Swing Low current cavity lock test. Optics. Q^2 measurement (Bob or Kent). Opportunistic: SAM test. Cavity lock commissioning completed
Thursday, June 27 Owl Optics (db scan), Q2 measurement, detector alignment db scan, Q2 data taking completed in the morning, detector adjustment needs hall access in the afteroon
Day Send beam through Compton chicane, Compton commissioning. Fail to send beam through compton chicane
Swing Rate scan (Dustin) and SAM shutter test, raster size verification All completed
Friday, June 28 Owl Controlled access (SAM shutter removed, detectors to integrating mode), high current test (no FFB ;-()
Day Mostly down due to vacuum problem, shift BMW test with tune beam, Compton commissioning
Swing Compton commissioning, current + PITA scan, finish up high current test, BMW Unable to finish any of the task in the list, beam restoration procedure performed throughout the swing shift. Harp scan (similar spot size compared to yesterday, x ~100um, y ~ 550um). Established raster size, FFB.
Saturday, June 29 Owl Production (natural Pb, Carbon) Down due to target vacuum problem
Day Production with 208Pb? Rate studies, Phase 1. Down due to target vacuum problem
Swing Sweep + access. Phase 2 rate studies Down due to target vacuum problem
Sunday, June 30 Owl 208Pb Production. Target Fleet Commissioning Down due to target vacuum problem
Day Moller commissioning. Down due to target vacuum problem
Swing Optics - Y target finding, Bandwidth. Collimator heating axis study. Down due to target vacuum problem
Monday, July 1 Owl Down due to target vacuum problem
Day Beam Studies Target vacuum leak source found, recovery in progress
Swing Site power loss while ramping up HRS magnets after target cool down
Tuesday, July 2 Owl Down due to the site power loss, https://logbooks.jlab.org/entry/3697845
Day Down due to the site power loss
Swing Down due to the site power loss
Wednesday, July 3 Owl Down due to the site power loss
Day Still down from the power loss, CHL started CT recovery and perhaps 2K pumpdown in the afternoon
Currently we are:
Sieve OUT
Integrating mode detector
Raster off (tested ok yesterday)
Cavity in low current mode
Swing
Thursday, July 4 Owl Restricted
Day Restricted
Swing Restricted
Friday, July 5 Owl Restricted
Day Target cool down, Magnet ramp up Restricted->Controlled access
Swing Cold target monitoring, Magnet ramp up Hall to Power permit upon completion of Compton work, 5-8pm Cryo ready in SL, 8-12pm phase the SL
Saturday, July 6 Owl Cold target monitoring. Power outage in SL, no beam
Day Got 70uA to dump, then Cold target monitoring. 8am - 5S optics, tune B after 5S
Swing Cold target monitoring. Tuned accelerator, took beam away, 5S optics, tune B after 5S
Sunday, July 7 Owl Cold target monitoring. Tuned accelerator, took beam away, 5S optics, tune B after 5S
Day low current cav commissioning (for EPICS) and beamline optics Tuned C, then tune beam to A, then 20nA CW, then back taken for retuning
Swing High current Pb, Carbon 1%, BMW, current scan, PITA/IA scan Detailed plan tuning for most of shift, hope for Production CW
Monday, July 8 Owl no beam
Day High current Pb, Carbon 1%, BMW, current scan, PITA/IA scan Detailed plan Production CW ,
Swing High current Pb, Carbon 1%, BMW, current scan, PITA/IA scan Detailed plan Production CW
Tuesday, July 9 Owl High current Pb, Carbon 1%, BMW, current scan, PITA/IA scan Detailed plan Parasitic CW , tuning for higher passes
Day Low current, different triggers on C, Pb Parasitic CW , tuning for higher passes
Swing Low current GEMS,Sieve/switch to integrating (and remove S0?) Parasitic CW , tuning for higher passes
Wednesday, July 10 Owl Detector alignment and low current counting mode CW low current
Day High current Isotopic Lead,set HVs, BMW, current scan, PITA/IA scan Detailed plan 50uA
Swing Moller commissioning <2uA
Thursday, July 11 Owl Finish Moller commissioning, 50uA production runs isotopic lead (BMW, Aq feedabck, FFB on) Experts are looking at data, FFB was not working
Day Hysteresis recovery, machine retuning Hysteresis recovery done, no beam in the hall.
Swing No beam in the hall
Friday, July 12 Owl Planned to 208Pb production and understand noise problem (Cip). Call Paul King+ Cameron for raster sync studies No beam in the hall
Day Expecting beam around noon. After beam comes, try for FFB. If it doesn't work within 30min, go to 208Pb production data and understand noise problem (call Ciprian) No beam in the hall
Swing Try FFB and 208Pb production. No beam in the hall
Saturday, July 13 Owl Ask MCC to tune 65 uA to dump and then ask them to try fast feedback. Give them ~30 min for FFB. Planned to 208Pb production and understand noise problem (call Ciprian). no beam in the hall
Day Continue with owl shift plan. No beam
Swing Continue with today's owl shift plan got beam ~8 pm. Checked raster size and started production data taking without FFB
Sunday, July 14 Owl Production+ analysis. FFB (30 min), BMW (30 min), Aq FFB tried, but didn't work.
Day Production+ analysis
Swing Production+ analysis
Monday, July 15 Owl Production+ analysis. Except ~3 hour down time, we took good data
Day FFB commissioning until 10AM. Take run with FFB (if ready) or w/o FFB (if not ready) until MOLLER experts walk in for MOLLER commissioning. MOLLER polarimeter commissioning is going on
Swing MOLLER commissioning
Tuesday, July 16 Owl MOLLER Polarimeter and FFB commissioning
Day production after pass change
Swing change IHWP ('out'), BPM and BCM calibration (Caryn) Done
Wednesday, July 17 Owl Production with 50uA with Aq, BMW and Energy-mode:'RF-off'
Day HallB tuning no beam and frame hunting I
Swing frame hunting II, current scan, Detector and SAM calibration and 70uA production with 12x7.2 raster
Thursday, July 18 Owl IA, PITA scan, 50uA production with with Aq (HallA and C), BMW and FFB off
Day 50 microAmp production, PQB study, FFB test full survey to solve the RHRS Q2
Swing Moller measurement
Friday, July 19 Owl Moller measurement ready for the spin dance, may need short measurement to be complete.
Day control access for the RHRS Q2 magnet tripping
Swing Bandwidth, BCM, FFB, Left arm only production at 50uA
Saturday, July 20 Owl production at 50uA RHRS Q2 magnet is down
Day control access for Q2 debugging beam stop at 8:00am and back at 4:00pm
Swing PITA/IA scan at 50uA, production at 50uA
Sunday, July 21 Owl production at 50uA RHRS Q2 magnet is down
Day production at 50uA RHRS Q2 magnet is down
Swing Qsqr measurement and production at 50uA RHRS Q2 magnet is down
Monday, July 22 Owl production at 50uA, Moller measurement was paused LCW leak in the west arc
Day control access for Q2 magnet, change quartz at LHRS and put both HRS S0 back with counting mode LCW leak >10 hours
Swing Qsq measurement, Detector alignment at low current. 1 hour
Tuesday, July 23 Owl No beam due to LCW leak >30h
Day control access for Q2 magnet, Compton laser work Q2 is recovered around 12:00pm
Swing No acceptable beam 1H04E had trouble locking, ion chamber and Compton high rates, Faraday cup2
Wednesday, July 24 Owl No acceptable beam until 6:30am Dump puck
Day Moller and Spin dance measurement Success!! Final Wien -13.3
Swing
  1. Beam recovery procedure
  2. Low current: detector alignment (Devi, Kent, Dustin)
  3. Qsq measurement (Bob)
  4. Short access to go to integrating mode (Devi)
  5. SAM HV adjustment (Devi)
  6. Current scan (75 - 5 uA), PITA scan (Caryn)
  7. 30 minute PROD run at 50uA to check widths
  8. Production at 70uA
 Short access for changing the cable to integrate mode and changing the Compton attenuator
Thursday, July 25 Owl production at 70uA
Day
  1. Planned:
    • production at 70uA
    • ~30 minutes for injector bias tests during Hall C gas work (Caryn)
  2. Unplanned:
    • Access to fix the BPMs/ move away from beamline (Francis)
    • Need to fix the BCMs (Musson)
 BPMs fixed, bias left on after study; analog BCM problem from Hall and not fixed; plan is to use digital BCMs with separate receivers
Swing
  1. Beam recovery procedure
  2. production at 70uA
Friday, July 26 Owl production at 70uA deltaT on the collimator increased. Water out temp exceeding our set limits
Day
  1. production at 70uA
  2. Brief access to swap the digital receiver when Musson and Co. ready
  3. Some beam tuning to look at reducing the trip rate (could that be related to the collimator temps?)
 receiver swapped; DO NOT MOVE THE TARGET!
Swing
  1. production at 70uA
  2. special spot run with VDCs (Kent)
  3. careful collimator temperature study (Kent)
Saturday, July 27 Owl production at 70uA; DO NOT MOVE THE TARGET!
Day production at 70uA; DO NOT MOVE THE TARGET!
Swing production at 70uA; DO NOT MOVE THE TARGET!
Sunday, July 28 Owl production at 70uA; DO NOT MOVE THE TARGET!
Day
  1. production at 70uA; DO NOT MOVE THE TARGET!
  2. spot++ to assess the target
Swing production at 70uA; DO NOT MOVE THE TARGET!
Monday, July 29 Owl production at 70uA; DO NOT MOVE THE TARGET!
Day
  • low current running (expert driven, if approved)
    1. bandwidth study
    2. MOLLER test
Swing
  • low current running (expert driven)
    1. MOLLER test
Tuesday, July 30 Owl low current running beginning at 8am (if approved)
Day Target fix
Swing
  • Tests with no target
  1. collimator centering angles with tune beam
  2. BCM calibrations
  3. BPM calibrations
  4. position feedback study
Wednesday, July 31 Owl production at 70uA
Day
  1. HRS quad repairs
  2. target repairs
  3. Compton work
  4. BCM repair
  1. HRS quad repairs - both operational; nothing really done to right
  2. target repairs - mechanical work done, modifying software for new setpoints
  3. Compton work ongoing
  4. 2nd one working as well as we can tell
Swing
  1. Raster check
  2. Detector alignment (low current)
    • Main detectors
    • AT detectors
  3. BCM test and Current and Pita scans
  4. production at 70uA
Thursday, August 1 Owl production at 70uA
Day production at 70uA
Swing Production running at 70uA
Friday, August 2 Owl Production running at 70uA
Day
  1. Wien flip starting at 8:30am
  2. Compton work in the hall: lens, mode-matching, PPLN tuning
  3. Production 70uA; (IHWP OUT, start slug 26)
 raster changed to 4 x 5 mm2 for slug 26
Swing Production running at 70uA
Saturday, August 3 Owl Production running at 70uA
Day
  1. Address issues-- Col. temps, and increased det. widths
  2. Production running at 70uA
 changed to Pb9 target
Swing Production running at 70uA
Sunday, August 4 Owl Production running at 70uA
Day Moller starting at 8am
Swing more Moller
Monday, August 5 Owl more Moller
Day
  1. Compton work in Hall
  2. Production running at 70uA
Swing Production running at 70uA
Tuesday, August 6 Owl Production running at 70uA
Day
  1. Production until 10:30 am
  2. Controlled access for Compton work
Swing Production running at 70uA
Wednesday, August 7 Owl Production running at 70uA
Day
  1. Production running at 70uA
  2. Compton Chicane tuning;
Swing Production running at 70uA
Thursday, August 8 Owl Production running at 70uA
Day
  1. Production running at 70uA
  2. Production until 9:00 am
  3. No beam during Hall C witness beam setup and injector anode-bias remove
  4. Production running at 70uA
  5. Moller solenoid axis and lock
Swing Production running at 70uA
Friday, August 9 Owl Production running at 70uA
Day
  1. Production running at 70uA
  2. Hall Access
  3. Production running at 70uA
Swing Production running at 70uA
Saturday, August 10 Owl
  1. Production running at 70uA until 6:30 am
  2. Ask to save the Compton-Chicane tune configuration
  3. Request for Compton Straight-Through beam
  4. Take production at 70 uA until Moller crew arive
Day
  1. Moller measurement
  2. Production running at 70uA
Swing
  1. Moller measurement
  2. Production running at 70uA
Sunday, August 11 Owl
  1. Request Compton Straight-Through tune
  2. Production running at 70uA with Compton Straight-Through beam
Day
  1. Production running at 70uA
Swing Production running at 70uA
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