August 23, 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

• Numerous minor issues fixed during the rotation access yesterday
  • Collimator motion was fixed
  • Network switch replaced - Fixed some of our white alarms
  • SHMS HGC pressure gauge camera power cycled
    • This didn't fix it, but Brad restarted the camera software after I power cycled it and it came back
• Beam came back around 17:00 after the downtime caused by the VESDA alarm in the NL
• Steady data taking over swing and owl
• Brief HB interlock on swing took us down for ~30 minutes

Current Run Plan

• Working through the 24 hour run plan I posted yesterday
• Q2=1.60, W =3.06, x=0.1568, low ε data taking in progress
  • LH2 central setting done - Full Analysis Here
  • Dummy central setting done too
  • LD2 central setting in progress
  • Should finish central settings by early swing today, rotate out to 7.50 on the SHMS and finish this kinematic
    • Should see us through the evening and into owl
  • After this, two HeePCoin settings (#4 and #5 on pages 16 and 18 of the run plan) to finish before going to negative polarity

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
• Please see updated CoVID guidance for the weekend - Weekend CoVID Guidance
  • Made obsolete by recent CoVID guidance update?

Current Issues

• HMS Q2 Field Readback - Stuck at 0T
  • Current is reading back ok and isn't changed, no real issue?
  • Comms issue with field readback?
    • Related to network switch fixes yesterday?

Planned Accesses to the Hall

• None planned

Special Requests

• Fix coffee machine, or replace.
• BCM Calibration - Today!
  • Will do this after the meeting today
  • Dave Mack posted the updated procedure
• Beam energy measurement - Wednesday (24/8)