Difference between revisions of "PreviousRunPlanDaily"

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Line 980: Line 980:
 
|
 
|
 
* Pass change 3 -> 5 for Hall B until ~1:00PM
 
* Pass change 3 -> 5 for Hall B until ~1:00PM
 +
* Compton vacuum, LHRS dipole UPS re-
 +
| 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
 
* Compton vacuum, LHRS dipole UPS replacement during the down
 +
* Bake compton chicane overnight during production, run beam straight through
 
* Return to PbD #2 production
 
* Return to PbD #2 production
 +
* Large asymmetry run (Jon)
 
|
 
|
 +
*
 +
* Baking started, HRS work completed by Heidi
 
|-
 
|-
 
| Monday 3 May
 
| Monday 3 May
Line 999: Line 1,014:
 
| Day
 
| Day
 
|
 
|
−
* Beam studies
+
* Work on switch for Pockels cell (start 9:00AM)
−
* Installation of new switch for Pockels cell (as per Kent)
+
* Complete Compton beam line bake-out, leak check, cavity alignment
−
* 8 hour Compton beam line bake-out, leak check
 
 
|
 
|
 +
* Pockels cell switch work complete
 +
* Compton vacuum reopened
 
|-
 
|-
 
| Tuesday 4 May
 
| Tuesday 4 May
Line 1,008: Line 1,024:
 
|
 
|
 
* Production
 
* 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
 +
* Q<sup>2</sup> 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
 
|}
 
|}

Revision as of 21:42, 14 June 2010

This has the previous daily run plans, i.e. prior to a cutoff date. The more recent run plans 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:
  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 re-
 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=716"