PreviousRunPlanDaily - PREX Wiki

PreviousRunPlanDaily From PREX Wiki Jump to: navigation, search This was for the PREX-I run in 2010. Run plans for PREX-II and C-REX will be forthcoming. This was the daily run plans prior to June 7, 2010. Run plans after June 7 are 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: Compton test (Jay Benesch + Megan). Page Dustin + Jon + Bob + Sasha. Q^2 Measurement (Bob) Call Compton Experts Access: Refill Moller Magnet. Check Compton HV. Remove S0. Go to counting mode (Dustin). Compton Stuff. Detector Mapping (Jon). Detector Alignment (Dustin). Q^2 Measurement (Bob). Relative Rate Measurement (Bob). 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 Hall B Pass change 3 -> 5 until ~1:00PM Compton vacuum, LHRS dipole UPS replacement during the down Bake compton chicane overnight during production, run beam straight through Return to PbD #2 production Large asymmetry run (Jon) Baking started, HRS work completed by Heidi Monday 3 May Swing Production Tuesday 4 May Owl Production Tuesday 4 May Day Work on switch for Pockels cell (start 9:00AM) Complete Compton beam line bake-out, leak check, cavity alignment Pockels cell switch work complete Compton vacuum reopened Tuesday 4 May Swing Production Continued Compton realignment/laser polarization measurement Wednesday 5 May Owl Production Stopped work on Compton - still not complete Changed beam spot size to 200x200um Wednesday 5 May Day 12 hours Moller tests, start 9:00AM (Sasha, Jixie) Wednesday 5 May Swing Finish Moller tests, 21:00 Raster clock tests 22:00-24:00 (KK, Bob, Jon) Production as per raster clock tests Thursday 6 May Owl Production Thursday 6 May Day Beam Studies (8 hours controlled access starting 08:15) Finish Compton cavity work (Sirish, Abdurahim) Start Compton pumping, replace leaky upstream valve? (John Heckman et al) Remove GEM(s)?? (Alex, Kiad) Compton Boron installation (Megan) Continued compton cavity alignment Boron installed INFN GEMs removed to EEL, (additional UVA GEM installed? Thursday 6 May Swing Raster clock tests Production CHL trip Friday 7 May Owl Raster clock tests (cont?) Production Tests aborted due to network switch failure in the hall Friday 7 May Day Production Wien flip, QE scan, spot move (nominally 9:00AM) Wien flip, QE scan, spot move completed. Compton valve work continued until 2:00 Started detector alignment checks Q2 and establish low-current cavities (Dustin) Friday 7 May Swing Tests by KK et al Production Saturday 8 May Owl Production Saturday 8 May Day Production 2:00PM - Turn off cavity baking 3:00PM - Leak check, turn on ion pumps 4:00PM - Routine Moller Measurement Compton vacuum reestablished Replaced valve opens with sufficient vacuum levels Saturday 8 May Swing Moller Moller measurement gives 91% polarization Sunday 9 May Owl Production Sunday 9 May Day Compton ready? Production Cavity locks at 3kW! Valve upstream of chicane will not open Sunday 9 May Swing Production Monday 10 May Owl Production Left dipole down Compton valve stuck Monday 10 May Day Fix left dipole Fix Compton valve Fix target vacuum Left dipole down Compton valve fixed and tested Target vacuum bad Monday 10 May Swing Standby Empty or C target oversampling runs if valves can be opened 1-arm production if target vacuum < 5E-5 Left dipole down Target vacuum bad Tuesday 11 May Owl Standby Empty or C target oversampling runs if valves can be opened 1-arm production if target vacuum < 5E-5 Tuesday 11 May Day Wien flip Beam studies -- injector studies Raster setup Fix left dipole Fix target vacuum Tuesday 11 May Swing Compton tune Oversampling tests Left dipole down Right dipole NMR down Target vacuum bad Wednesday 12 May Owl Production Left dipole down Right dipole NMR down Target vacuum bad Wednesday 12 May Day Repair left dipole PS Repair right dipole NMR Repair right Q3 bad bit Target vacuum bad Wednesday 12 May Swing Standby Left dipole down Left Q3 controls problem Target vacuum bad Thursday 13 May Owl Standby Left dipole down Left Q3 controls problem Target vacuum bad Thursday 13 May Day Repair left dipole PS Repair left Q3 controls Find and stop target vacuum leak Warm up target Thursday 13 May Swing Warm up target Friday 14 May Owl Pump down target Friday 14 May Day Pump down target Friday 14 May Swing Cool target Re-establish beam Raster tests Target vacuum good Both spectrometers good Saturday 15 May Owl Production Saturday 15 May Day Access for left dipole regulation Left dipole regulation failed Target vacuum increase, then decrease with added heating Saturday 15 May Swing Access for left dipole regulation Re-establish beam Møller Left dipole regulation bad Target vacuum varying, mostly < 1e5 Sunday 16 May Owl Møller Left dipole regulation bad Target vacuum varying, mostly < 1e5 Sunday 16 May Day Access for left dipole regulation Target vacuum varying, mostly < 1e5 Sunday 16 May Swing Production Background test (L PMTs on) Left dipole regulation bad Target vacuum varying, mostly < 1e5 Monday 17 May Owl Production Monday 17 May Day Controlled Access for Left Dipole fix Moller refilled Left dipole working for now Suspect bad silicon-controlled rectifier (SCR) There are 12 needed and only 6 spares Looking for spares and will work during beam studies Tue. Monday 17 May Swing Production with both arms! Tuesday 18 May Owl Production (hopefully with both arms!) No Left Dipole issues all night Tuesday 18 May Day Beam Studies, beginning 9am (8hrs) Wien Flip Maintenance on the Left Dipole Power supply Wien Flip completed before beam studies Beam studies completed Measurements performed on Left Dipole Power supply Tuesday 18 May Swing Production Oversample tests (Rupesh) Compton not done Oversample tests not done Wednesday 19 May Owl Production Oversample tests Oversample tests completed Wednesday 19 May Day Compton Tuning (1-2hrs, start around 10am) Raster tests during 'target vacuum recovery' Production Injector tuning did not help Compton rates Jay and Yan are asking for advice Compton tuning during beam studies tomorrow Wednesday 19 May Swing Production Q2 and detector alignment (2-3hrs, around 8pm) short Q2 measurement Target vacuum tripped valves closed -> no beam Thursday 20 May Owl Production No beam - target operator only Thursday 20 May Day Beam Studies (start at 8:30am, afternoon for Compton tuning) Some measurements on left dipole power supply by Jack in Hall Production Compton tuning needs to be rescheduled Jack did some work in hall Thursday 20 May Swing Canceled We lost the target vacuum. Will need to warm up target and replace O-ring after letting radiation subside. Plan to replace O-ring on Monday May 24. Friday 21 May Owl Canceled Friday 21 May Day Canceled Friday 21 May Swing Canceled Saturday 22 May Owl Canceled Saturday 22 May Day Canceled Saturday 22 May Swing Canceled Sunday 23 May Owl Canceled Sunday 23 May Day Canceled Sunday 23 May Swing Canceled Monday 24 May Owl Canceled Monday 24 May Day Various tests Pedestal runs linearity studies detector time constant tests GEM studies Target repairs - replace o-ring with silicon one temporarily Keep target warm and pump down Leak check Monday 24 May Swing Pedestal runs Tuesday 25 May Owl Canceled Tuesday 25 May Day Beam Studies (until between 10am and noon) Pedestal runs Kalres O-ring installed ahead of schedule. Pumping down. Tuesday 25 May Swing Pedestal runs Wednesday 26 May Owl Canceled Wednesday 26 May Day Accelerator Vacuum Group in Hall for Leak checks Switch box arrived for activate remotely the heating and cooling of thetarget Found a leak, but pressure stable at 675 mtor Electrician will install the appropriate outlet; R. Michaels is working on the remote control. Wednesday 26 May Swing Canceled Thursday 27 May Owl Canceled Thursday 27 May Day Accelerator Vacuum Group in Hall for Leak checks Thursday 27 May Swing Canceled Friday 28 May Owl Canceled Friday 28 May Day Shift workers on Standby Accelerator Vacuum Group in Hall for Leak checks Friday 28 May Swing Canceled Saturday 29 May Owl Canceled Saturday 29 May Day Canceled Saturday 29 May Swing Canceled Sunday 30 May Owl Canceled Sunday 30 May Day Canceled Sunday 30 May Swing Canceled Monday 31 May Owl Canceled Monday 31 May Day Canceled Monday 31 May Swing Canceled Tuesday 1 June Owl Canceled Tuesday 1 June Day Canceled Tuesday 1 June Swing Canceled Wednesday 2 June Owl Canceled Wednesday 2 June Day Canceled Wednesday 2 June Swing canceled Thursday 3 June Owl Canceled Thursday 3 June Day Cooling down target (more likely to start on Swing) Day shift on standby. Thursday 3 June Swing Swing shift workers are needed. PREX detector in counting mode resume beam in Compton chicane ( MCC ) harp scan for beam profile and beam position ( Shift crew - MCC ) raster check ( Shift crew ) Long down target recovery procedure ( Shift crew ) Alignment checks, Q2 ( Dustin Mc Nulty ). put sieve in take alignement data put sieve out Q2 measurement Ask for access to go to integrating mode ( Jon Wexler or Amhed Zafar ) and remove Sieve Restart Production Production Friday 4 June Owl Production Friday 4 June Day Production Friday 4 June Swing Production Saturday 5 June Owl Production Saturday 5 June Day Production Saturday 5 June Swing Production Sunday 6 June Owl Production Sunday 6 June Day Production Sunday 6 June Swing Production Retrieved from "https://prex.jlab.org/wiki/index.php?title=PreviousRunPlanDaily&oldid=2…" Navigation menu Views Page Discussion View source History Personal tools Log in Request account Navigation Main page Recent changes Random page Help Search   Tools What links here Related changes Special pages Printable version Permanent link Page information This page was last modified on 11 May 2017, at 12:16. 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