Difference between revisions of "The HPS Run Wiki"

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# After "Go":  [https://logbooks.jlab.org/entry/3337784 Check SVT Occupancy]
 
# After "Go":  [https://logbooks.jlab.org/entry/3337784 Check SVT Occupancy]
 
# Update the run spreadsheet on [https://docs.google.com/spreadsheets/d/1l1NurPpsmpgZKgr1qoQpLQBBLz1sszLz4xZF-So4xs8/edit#gid=43855609 Google Docs].
 
# Update the run spreadsheet on [https://docs.google.com/spreadsheets/d/1l1NurPpsmpgZKgr1qoQpLQBBLz1sszLz4xZF-So4xs8/edit#gid=43855609 Google Docs].
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<!--# Do NOT do this:  <s>After end of a Non-Junk run, [https://logbooks.jlab.org/entry/3337942 Copy the Run To Tape]</s>-->
 
 
# See the '''whiteboard''' for everything else that should be done on a per-run basis.
 
# See the '''whiteboard''' for everything else that should be done on a per-run basis.
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<!--
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===Setting up Chicane for E=2.3 GeV:===
 
===Setting up Chicane for E=2.3 GeV:===
 
'''Note:'''  This requires Beam Permit and NO beam to HPS / Faraday Cup.   
 
'''Note:'''  This requires Beam Permit and NO beam to HPS / Faraday Cup.   
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===ECAL Instructions:===
 
===ECAL Instructions:===
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<!--
 
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*For additional info on beam quality, HV can be ON when Tagger Magnet is on and tuning beam to the Tagger Dump. 
 
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**To be useful, this requires DAQ Prestarted and ECAL Scaler GUIs running and monitored.
 
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*HV must be OFF during FIRST delivery of beam to the Faraday Cup after tuning to the Tagger Dump.
 
*HV must be OFF during FIRST delivery of beam to the Faraday Cup after tuning to the Tagger Dump.
 
**Only after stable beam established to Faraday Cup can HV can be turned ON.
 
**Only after stable beam established to Faraday Cup can HV can be turned ON.

Revision as of 22:05, 5 February 2016


[edit]
HPS 2016 run, February 4 to March 14, weekends only.
Shifts are manned from Friday 3pm to 7am on Monday.
Beam energy 2.3 GeV (1 pass).
Important: Document all your work in the logbook!

RC: Stepan Stepanyan (Bluejeans info for Run Meetings on Thursdays and Fridays at 3pm)

  • (757) 575-7540
  • 9 575 7540 from Counting Room

PDL: Harut Avagyan

Run Plan for February 5 - 7, 2016:

Locking up the hall

  • At 2pm (Friday), check the status of the activities in the hall and notify RC if there are potential delays for the lockup at 3pm. Work with the hall work coordinator (Doug Tilles or his designee) to make sure hall is ready for sweep at around 3pm.
  • Make sure experts, beamline, ECal, SVT, and slow controls, checked their systems befor the lockup.
  • When ready notify MCC to start seep and lockup of the hall.
  • Make sure all necessary monitoring GUIs are up and running.
  • Make sure beam viewer screens are up.


Bringing beam to the hall (consult with RC with any problem):

  1. First beam comes to tagger dump. Ask MCC to turn on tagger magnet (they have procedures to set the correct current), check that beam type is "Photon" on the BTA GUI (can be opened from "Beam" GUI).
  2. Follow instructions under "Procedures" on the documentation tab for "Beamline" to establish beam to the tagger dump. For establishing beam on the tagger dump beam current should be <10 nA.
  3. Make sure nA BPMs are calibrated while running beam to the tagger dump (this will depend on time of the day when beam and experts are available for BPM calibration).
  4. After reasonable beam is established on the tagger dump ask MCC to degauss the tagger magnet and deliver beam to the Hall-B electron beam dump (to Faraday cup). Here "reasonable" means beam profile is close to the design values at 2C21 and "tagger" (2C24) harps. Not much has been changed in beam optics from the previous run, it is still 1 pass beam and we expect beam profile at 2C21 harp to be < 0.1 mm and < 0.4 mm on 2C24 (tagger) harp, both in X and Y.
  5. Make sure that SVT collimator is on the beam when sending the beam through HPS to the electron dump (Faraday cup).
  6. Follow the instructions under "Procedures" on the documentation tab for "Beamline" to establish beam to the electron dump. In order to have reliable readings on two important BPMs, 2H00 and 2H02, beam current should be >25 nA. All studies should be done with beam currents between 25 nA and 30 nA.
    • If needed move SVT protection collimator up/down to see beam clearly on the viewer (motion should not be more than a 1mm, the preset positions should be good to few hundred micrometers).
    • Before moving forward with 2H02A harp scans and beam profile tune, stripline BPMs 2H00 and 2H02 must be calibrated and orbit lock must be operational.
  7. The required beam profile at 2H02A harp is: X-width <~0.25 mm, Y-width <~ 0.05 mm, and the tilt angle <15 degrees. If beam profile is not exactly as required, but beam is stable, the following still can be done:
    • Center beam on HPS using ECal rates (see instructions under "Procedures" on the documentation tab for "Beamline").
    • Mark the beam position on the chromox screen and turn on HPS chicane magnets.
    • Study rates on ECal channels as a function of beam current without and with production target.
    • Check the FSD system (see procedures on the Documentaiton page)
  8. If beam stability and profile are acceptable, start centering it on HPS SVT using SVT wires (see instructions under "Procedures" on the documentation tab for "Beamline").
  9. Start trigger rates studies, establish running conditions.

Miscellaneous Notes:

  1. If you change beam current, turn orbit locks off first, there is a current - position dependence on the stripline BPMs 2H00 and 2H02
  2. Do NOT change chicane magnet currents when beam is on
  3. Do not run more than 30 minutes above 50 nA without the beam blocker in front of Faraday cup. Put beam blocker in for long running at high currents.


Run Coordinator
Feb 3 - Feb 10 Stepan Stepanyan
Feb 10 - Feb 17 Takashi Maruyama
Feb 17 - Feb 24 John Jaros
Feb 24 - Mar 2 Raphaël Dupré
Mar 2 - Mar 9 Nathan Baltzell
Mar 9 - Mar 16 Maurik Holtrop
Physics Division Liaison
Feb 3 - Mar 16 Harut Avagyan
Beamline
Feb 4 - Feb 10 F.X. Girod
Feb 10 - Feb 17 Stepan Stepanyan
Feb 17 - Feb 24 Rafo Paremuzyan
Feb 24 - Mar 2 Clive Field
Mar 2 - Mar 9 Takashi Maruyama
Mar 9 - Mar 16 John Jaros
SlowControls
Feb 4 - Feb 11 Stepan Stepanyan
Feb 12 - Feb 18 Sho Uemura
Feb 19 - Feb 25 Bryan McKinnon
Feb 26 - Mar 10 Hovanes Egiyan
Mar 11 - Mar 14 Nathan Baltzell
ECAL
Feb 2 - Feb 9 Holly Vance
Feb 9 - Feb 16 Nathan Baltzell
Feb 16 - Feb 23 Raphaël Dupré
Feb 23 - Mar 1 Andrea Celentano
Mar 1 - Mar 8 Gabriel Charles
Mar 8 - Mar 15 Gabriel Charles
SVT
Feb 4 - Feb 12 Matt Graham
Feb 12 - Feb 19 Sho Uemura
Feb 19 - Feb 26 Matt Solt
Feb 26 - Mar 4 Vitaliy Fadeyev
Mar 4 - Mar 14 Tim Nelson
DAQ
Feb 3 - Mar 16 Sergey Boyarinov


Spring 2015 Final @ 1 GeV:
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Charge.png


System/Person Pager/Phone Number
Run Coordinator (757) 575-7540 (cell)
Physics Div. Liaison (757) 876-1789 (cell)
MCC-OPS 7048
Crew Chief 7045
Crew Chief 9-879-3367 (cell)
Program Deputy 9-876-7997 (cell)
Gate House Guard 5822
DAQ/Online (757) 869-2188 (cell)
SVT (757) 541-7539 (cell)
ECAL (757) 810-1489 (cell)
Slow Controls (757) 748-6922 (cell)
Beamline (757) 303-3996 (cell)
Engineering (757) 748-5048
Hall-B Floor 5165
Hall-B Space Frame 5170, 5171
Hall-B Forward Carriage 5371
Hall-B Counting Room 5126, 5244, 5246, 5247
Hall-B Gas Shed 7115


Svtpic.png

Ecalpic.png

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