RGM RC Meeting Dec15 Dec22

Wednesday, December 15, 2021

• RC Hand-Off at 14:00
• Last 24 hours
  • Target change to LD2, beam available around 22:00
  • Production running started around 2:00
  • Torus cryo communication issue at 3:20, continued data taking
    • Cryo alarm was cleared by engineering
• Issues
  • FMT layer 3 with missing strips (maybe hardware issue)
• Upcoming Plan
  • Target change is scheduled for Friday at 7:30: LD2 --> LHe
• Analysis

Thursday, December 16, 2021

• Last 24 hours
  • Production running on LD2 with 50 nA
  • About 600 M events collected
• Issues
  • Ongoing: FMT layer 3 with missing strips (maybe hardware issue)
• Upcoming Plan
  • Target change is scheduled for Friday at 7:30: LD2 --> LHe
  • Expect to ask for beam between 12:00 and 16:00
• Analysis

Friday, December 17, 2021

• Last 24 hours
  • Production running on LD2 with 50 nA (about 400 M events collected)
  • 0:30 Torus power supply communication problem (did not affect data taking)
  • About 2.5 hours no beam during owl shift
  • 7:30 Change target from LD2 to LHe4
  • 10:45 Beam set up and beam blocker calibration
  • 12:00 Production running on LHe4 with 60 nA
• Issues
  • Ongoing: FMT layer 3 with missing strips (maybe hardware issue)
• Upcoming Plan
  • Data taking with 60 nA on LHe4 target
• Analysis