Difference between revisions of "Run Coordination Meetings:Spring2023"

Revision as of 16:14, 8 December 2022

Spring 2023 Run

Run Statistics Google Spreadsheet. 

GlueX experiment (January 12 - March 20 2023)

Connect Information

To connect from the outside by phone please do the following

1.) To join via a Web Browser, go to the page [1] https://bluejeans.com/660743227.

2.) To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 660743227.

3.) To join via phone, use one of the following numbers and the Conference ID: 660743227.

4.) The moderator code is 8394

Dial Either +1 408 740 7256 or +1 888 240 2560 for US or Canada

Specific instructions for connecting from JLab's Hall D conference room:

• Turn polycon on if necessary (do it before turning the computer on)
• With the polycon, place a call at 199.48.152.152
• Press # to enable the polycom keypad, then enter the meeting id: 660743227 and #
• You may have to unmute the microphone: #*4
• Turn the computer on if needed

Beam and Hall configuration

• Beam energy expected:
  • 11.55 GeV
• Solenoid:
  • 1350A
• CW Beam:
  • 250 MHz frequency.
  • Range: 1 nA-900
  • Chopper slit: TBD (assume C, since Hall C will be at 5-pass all the time)
  • Standard current and radiators
    • ~350 nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 500nA on 58 μm diamond)) Is this still valid?
    • ~350 nA on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 600nA on 30 µm Al radiator))
• Position Slow Lock on or FFB on (FFB doesn't operate below 50nA).
• Radiators:
  • Goniometer radiators:
    • Diamond TBD
    • Amorphous 40 μm Al radiator (44.9·10^-5 R.L.)
    • V-wire (for TAC run).
  • Amorphous
    • 1.64 µm Al (1.86·10^-5 R.L., see study)
    • 10 µm Al (11.2·10^-5 R.L.)
    • 30 µm Al (33.7·10^-5 R.L.)

• Tagger quadrupole on (-4.2 A).

• Collimator hole: Default running: 5.0 mm.

• Targets:
  • LH2 target: cryogenic target

• PS converter: 75 μm

• Miscellaneous:
  • PS test area: TBD
  • Other?

General Information

This document describes the run plan for the Hall D Spring 2023 run.

• Schedule for the run (see July 2022-March 2024 official schedule):

1. January 5th -12th: Electron beam restoration.
2. January 12th - March 20th: 10 weeks for GlueX high luminosity production.

• Accelerator overall plan and priorities: Deliver physics beam to 4 halls
  • Hall A, always at 4-pass, is scheduled stop early, on March. 13th.
  • Halls B and or C will always be at 5-pass

• Hall D plan Tentative guess
  • Experiment: GlueX-II E12-12-002
  • One (?) TAC run.
  • Two (?) empty target runs (One at the start of the run, the other consecutive to TAC run)
  • Straight track run (?)
    • Overall, one night of good data.
  • Opportunistic tests?

• Expected Staffing and responsibilities:
  • The Run Coordinator oversees the run:
    • January 12 - 18, 6 days: Joerg Reinhold
    • January 18 - 27, 7 days: Alexandre Deur
    • January 27 - Feb. 1st, 7 days: Edmundo Barriga
    • Feb. 1st - 8th: 7 days: Beni Zihlmann
    • Feb. 8th - 15th: 7 days: Igal Jaegle
    • Feb. 15th - 22nd: 7 days: TBD
    • Feb. 22nd - March 1st: 7 days: Susan Schadmand
    • March 1st - March 8th: 7 days: Tolga Erbora
    • March 8th - March 15th: 7 days: Churamani Paudel
    • March 15th - March 20th: 5 days: Richard Jones

• • The Physics Division Liaison (PDL) and Hall D Work Coordinator/Safety Warden (S. Spiegel) verify that the proper safety rules are followed. PDL is:
    • PDL: B. Zihlmann
  • The analysis coordinator (Alexander Austregesilo) oversees the off-line diagnostic of the different systems and analysis of the data.
  • Shifts: 2 person shifts: 1 local leader and 1 (optionally remote) worker scheduled through the GlueX shift scheduler.