Run Coordination Meetings:Spring2025

Spring 2025 Run

Google Spreadsheet. 

GlueX experiment (January 24 - July 20 2025)

Connect Information

To connect from the outside by phone please do the following

1.) To join via ZoomGov: connect Meeting ID: 1613772645 / Passcode 8394

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

Meeting General Agenda

Run planning meetings:

Beam and Hall configuration

• Experiment: GlueX-II/JEF.
• Beam energy expected:
  • TBD GeV
• Solenoid:
  • 1350A
• CW Beam:
  • 250 MHz frequency.
  • Range: TBD nA.
  • Chopper slit: TBD
  • Standard current and radiators
    • ~TBD nA on a 4.1·10^-4 R.L. radiator (50 μm diamond). (RSAD limit 400nA on 58 μm diamond))
    • ~TBD on a 33.7·10^-5 R.L. AL radiator (30 µm Al). (RSAD limit 480nA on 30 µm Al radiator))
• Position Slow Lock on or FFB on (FFB doesn't operate below 50nA).
• Radiators:
  • Goniometer radiators: To be updated
    • Diamond JD70-103 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) Used in CPP. We will start with this diamond
    • Diamond JD70-107 (55 μm - 4.6·10^-4 R.L., 7×7 mm²) - To be used once JD70-103 becomes deficient. New crystal. (Not expected to be great according to rocking curve.)
    • (Diamond JD70-109 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - New crystal - Not expected to be good according to rocking curve.)
    • (Diamond JD70-105 (47 μm - 3.9·10^-4 R.L., 7×7 mm²) - Spent: used for the second part of GlueX's Fall 2018 run and Fall 2019/Spring 2020/Fall 2021)
    • (Diamond JD70-106 (50 μm - 4.1·10^-4 R.L., 7×7 mm²) - Aligned and used shortly during Tagger Accidental test in Spring 2020. Did not display sharp coherent peak.)
    • Amorphous 40 μm Al radiator (44.9·10^-5 R.L.)
    • Amorphous 1.86·10^-5 R.L., (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 To be confirmed

• Miscellaneous:
  • PS test area (tests will be performed in parallel with GlueX data taking):

General Information

This document describes the run plan for the Hall D Spring 2025 run.

• Schedule for the run (see 2025 official schedule (draft)):

1. January TBD: Electron beam restoration.
2. January 24th - July 20th: 26 weeks for GlueX-II/JEF.

• Accelerator overall plan and priorities: Deliver physics beam to 4 halls
  • Anything special for other hall runs?

• Hall D plan
  • Experiment: GlueX-II/JEF E12-12-002
  • TBD TAC runs.
  • TBD empty target runs
  • Straight track run: TBD
  • Opportunistic tests?.

• Expected Staffing and responsibilities:
  • The Run Coordinator oversees the run:
    • Jan. 24 - 29, 6 days: Alexandre Deur
    • Jan. 29 - Feb. 5, 1 week:
    • Feb. 5-12, 1 week:
    • Feb. 12-19, 1 week:
    • Feb. 19-26, 1 week:
    • Feb. 26-March 5, 1 week:
    • March 5-12, 1 week:
    • March 12-19, 1 week:
    • March 19-26, 1 week:
    • March 26-Apr. 2, 1 week:
    • Apr. 2-9, 1 week:
    • Apr. 9-16, 1 week:
    • Apr. 16-23, 1 week:
    • Apr. 23-30, 1 week:
    • Apr. 20-May 7, 1 week:
    • May 7-14, 1 week:
    • May 14-21, 1 week:
    • May 21-28, 1 week:
    • May 28-June 4, 1 week:
    • June 4-11, 1 week:
    • June 11-18, 1 week:
    • June 18-25, 1 week:
    • June 25-July 2, 1 week:
    • July 2-9, 1 week:
    • July 9-16, 1 week:
    • July 16-20, 4 days:

• • 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.

• Coordination Activities:
  • The RC will attend the MCC meetings at 7:45am and 8:00am and the weekly MCC meeting (Wednesday, 1:30pm). The PDL will attend the weekly MCC meeting.
  • Run meetings: broadcasted on Zoom. 8:45am in the counting house conference room. The Run Coordinator will be responsible for organizing and chairing the meeting.

• Useful links:
  • Accelerator schedule and information
    • Long term schedule
    • Scheduled Accelerator Down (SAD)/Maintenance Calendar
    • http://accboard.acc.jlab.org/
    • PD weekly summary (also available from Accelerator's ELOG)
    • RC weekly summary report page
  • Link to Richard Jones program to plot the beam profile at the collimator.
    • Harp extrapolation tool
  • Links to previous runplans
  • Web-accessible EPICS information
    • Hall D EPICS summary screen from CSS
    • Accelerator summary screen from CSS
    • Hall D detectors related EPICS screens
    • Hall D related accelerator screens epicsweb page
  • Links to beam parameters/radiation level monitoring:
    • Last 8-hours plots showing 1-minute, 10-minute, and hourly averages
    • Same but Last 24-hours
    • Same but Last 72-hours
    • Week, month, and quarter (3 months) plots also exist, with similar web addresses.
    • A map of the radiation monitors

Hall D situation room (current run plan)

Hall D counting room white board

Accelerator status

1. • Link to accelerator short term schedule (White board)
   • Link to accelerator SAD calendar
   • Bluejeans code for the daily MCC meetings and Wednesday 1:30 meeting: 569476853

Hot Checkout

To be completed by TBD

• Hot Check OUT Status ( Hot Check OUT Status (off site test version))

0% ready ; 0% checked ; 100% not ready

Live Camera Feeds from the Four Counting Houses

1. These feeds SHOULD be open and visible at all times from one of the monitors in each of the counting houses. (currently this is not working; we should post instructions how to establish this connection. J.R.)
2. Management cautions AGAINST opening them from other locations or offsite, out of concern for available bandwidth.

Running Shifts Remote

• Remote shift concepts