August 24, 2022

RC Meeting Information

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

• Zoom remote connection information:

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 Meeting ID: 160 710 0885
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Useful Links

• Shift Signup (Read only)
  • Shift Signup
• PionLT_2022_Physics_Status
• KaonLT Logbook - Used for PionLT updates too
  • Physics analysis updates should be cross posted here
• Run Plans
• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Current Status

• Mixed data taking past 24 hours
• Q2=1.60 W=3.08 x=0.15 low epsilon running
  • SHMS Centre (5.50) LD2+ - [ Done]
  • SHMS Left (7.50) LD2+ - [ Done]
  • SHMS Left (7.50) Dummy Target - Done
  • SHMS Left (7.50) LH2+ - After the arc energy measurement is done
• A couple of issues in the past 24 hours
  • SHMS PSS dropped when rotating the SHMS to 7.50, SHMS hut door "open"?
  • SHMS Q1 Vacuum spike
    • Reminder, please follow the instructions on this!
  • SHMS Q3 interlock
  • SHMS Dipole interlock
  • Beam quality overnight was a bit mixed, 2 hours down due to accelerator issues

Current Run Plan

• Arc energy measurement is ongoing
• After the arc energy measurement, run the Q2=1.60 W=3.08 x=0.15 low epsilon SHMS Left (7.50) LH2+ setting (page 33)
• Once this is done, finish HeePCoin #4 and #5 (pages 16 and 18 of the run plan), including dummy runs
• After HeePCoin, it's negative polarity time, we move to page 40 of the run plan and work our way through the last 9 pages of the run plan

Notices in Effect for Shift Crew

• If all SHMS magnets crash at the same time, push the SHMS dipole crash button (on the rack above the target heater manual controls and target temperature readbacks).
• For physics settings that come in quickly, please see - Analysis Note #1 Analysis Note #2
• SHMS Q1 Vacuum Spikes - Follow the guidance
• Please see updated CoVID guidance in the recent CoVID guidance update

Current Issues

• SHMS Q1 Vacuum Spikes - Follow the guidance
• Weird polarity flip alarms still occurring
• More white alarms (BCM temp and raster again)

Planned Accesses to the Hall

• None planned yet
• Rotation to 6.00 degrees will be coming up (page 44 of the run plan)
  • Given how long the next few settings are, this is likely going to be next week or later

Special Requests

• Fix coffee machine, or replace
  • Rolf has the same supernatural abilities as Bill and has managed to fix it... for now.
• Beam energy measurement - Today! (24/8)