Run Coordination Meetings:Spring2025

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Spring 2025 Run

Google Spreadsheet.


GlueX experiment (January 24 - July 20 2025)


Connect Information

To connect, please see the information on the GlueX meeting wikipage


Meeting General Agenda

Run planning meetings:


Beam and Hall configuration

  • Commission upgraded ECal.
  • FCAL commissioning
  • Experiment: GlueX-II/JEF.
  • Beam energy expected:
    • 12 GeV
  • Beam polarization expected:
    • from 5% to 73%, depending on other passes of the other Halls . No expectation of decent polarization before March 19th. Then 73% for the rest run.
  • Solenoid:
    • 1350A
  • CW Beam:
    • 250 MHz frequency.
    • Range: 1na-1000 nA.
    • Chopper slit: TBD
    • Standard current and radiators
      • ~<font color=300 nA on a 4.1·10-4 R.L. radiator (50 μm diamond). (RSAD limit 400nA on 58 μm diamond))
      • ~<font color=300 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.
  • 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.

  1. January TBD: Electron beam restoration.
  2. January 24th - July 20th: 26 weeks for upgraded ECal commissioning and GlueX-II/JEF.
  • Accelerator overall plan and priorities: Deliver physics beam to 4 halls
    • Anything special for other hall runs?
  • Hall D plan summary:
    • Beam and detector check-out: 50 - 300 nA. ~ a day.
    • Commission the upgraded ECal (~ a month. 150 nA)
    • Diamond alignment: Stable (no frequent trip) 20 nA without FSD for 2-3 shifts.
    • Experiment: GlueX-II/JEF E12-12-002
    • TBD TAC runs. ~nA or less. The bleedthrough should be small compare to it.
    • High luminosity runs: up to 1 week at 650nA, and up to 1 day at 1 uA.
    • Empty target runs: TBD (300 nA).
    • Straight track run: 2 shifts (50% efficiency: one shift of good data) (50 nA).
    • Opportunistic tests?.
  • Expected Staffing and responsibilities:
    • The Run Coordinator oversees the run:
      • Jan. ?? - 24, ?? days (beam restoration): Alexandre Deur
      • Jan. 24 - 29, 6 days: Alexandre Deur
      • Jan. 29 - Feb. 5, 1 week: Igal Jaegle
      • Feb. 5-12, 1 week: Simon Taylor
      • Feb. 12-19, 1 week: Edmundo Barriga
      • Feb. 19-26, 1 week: Colin Gleason
      • Feb. 26-March 5, 1 week: Igal Jaegle
      • March 5-12, 1 week: Simon Taylor
      • March 12-19, 1 week: Mike McCaughan
      • March 19-26, 1 week: Drew Smith
      • March 26-Apr. 2, 1 week: Naomi Jarvis
      • Apr. 2-9, 1 week: Boris Grube
      • Apr. 9-16, 1 week: Mark Dalton
      • Apr. 16-23, 1 week: Hao Li
      • Apr. 23-30, 1 week: Mike McCaughan
      • Apr. 30-May 7, 1 week: Alexandre Deur
      • May 7-14, 1 week: Richard Jones
      • May 14-21, 1 week: Justin Stevens
      • May 21-28, 1 week: Boris Grube
      • May 28-June 4, 1 week: Amy Schertz
      • June 4-11, 1 week: Naomi Jarvis
      • June 11-18, 1 week: Edmundo Barriga
      • June 18-25, 1 week: Drew Smith
      • June 25-July 2, 1 week: Hao Li
      • July 2-9, 1 week: Susan Schandmand
      • July 9-16, 1 week: Susan Schandmand
      • July 16-20, 4 days: Mark Dalton
    • 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 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.

Runplan

Hall D situation room (current run plan)

Hall D counting room white board


Accelerator status

Hot Checkout

To be completed by TBD

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

Readiness for Spring 2025 run

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

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