RunPlanDaily

Daily Run Plan

Here are details of the daily run plan. See also the Global Run Plan. The person responsible should ensure that a crew of experts is available for the shift. This schedule will be updated frequently by the Run Coordinator as the situation on the ground changes.

Previous daily run plans can be found here PreviousRunPlanDaily

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4495 78k 4496 73k 4497

Daily Run Plan for PREX   (latest at bottom)

Date (2010)	Shift	---------- Activity (Responsible) ----------	--- Status ---
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
Monday 7 June	Owl	Production
Monday 7 June	Day	Moller Measurement (noon to 4pm) Big Change asymmetry run Production
Monday 7 June	Swing	Production
Tuesday 8 June	Owl	Production
Tuesday 8 June	Day	Production Wien Flip (9 AM) Beam study (9-11 AM)
Tuesday 8 June	Swing	Production
Wednesday 9 June	Owl	Production
Wednesday 9 June	Day	Production
Wednesday 9 June	Swing	Production
Thursday 10 June	Owl	Production
Thursday 10 June	Day	Production
Thursday 10 June	Swing	Production
Friday 11 June	Owl	Production
Friday 11 June	Day	Production Wien flip
Friday 11 June	Swing	Production
Saturday 12 June	Owl	High Statistics Lead Inelastics, Qsq|GEM test, Calibration of the cavities with the amplifier	all done
Saturday 12 June	Day	Backgrounds: Dipole Scan, Transverse Polarization Measurements.	Finished left dipole, right dipole scan is pending
Saturday 12 June	Swing	Transverse Polarization Measurements.
Sunday 13 June	Owl	Transverse Polarization Measurements.
Sunday 13 June	Day	Transverse Polarization Measurements.
Sunday 13 June	Swing	Production
Monday 14 June	Owl	Production
Monday 14 June	Day	Production
Monday 14 June	Swing	Production
Tuesday 15 June	Owl	Production
Tuesday 15 June	Day	Beam Studies Production Wien flip
Tuesday 15 June	Swing	Production
Wednesday 16 June	Owl	Production
Wednesday 16 June	Day	Production
Wednesday 16 June	Swing	Production
Thursday 17 June	Owl	Production
Thursday 17 June	Day	Beam Studies Production
Thursday 17 June	Swing	Production
Friday 18 June	Owl	Production
Friday 18 June	Day	Production Wien Flip
Friday 18 June	Swing	Production
Saturday 19 June	Owl	Production
Saturday 19 June	Day	Production
Saturday 19 June	Swing	Production
Sunday 20 June	Owl	Production
Sunday 20 June	Day	Production
Sunday 20 June	Swing	4494 32k (beam current stepping up, might not be good) 4495 78k 4496 73k 4497 Production
Monday 21 June	Owl	Production
Monday 21 June	Day	Production