15:00 in the ATLAS building

Phone Details


  • Optics review plan (Chris Rogers)
  • Field mapping (Victoria/John Cobb/Jo Langford)
    • Field mapping of revised SSD
  • Theoretical magnet parameters and effect of iron (Jaroslaw/Victoria)
  • Transfer matrix and magnet alignment (Sophie/Chris Rogers)
  • Beamline commissioning (Victoria/Jaroslaw)
    • March/April/June data (without tracker)
    • > June data (with tracker)
  • Optics without M1 at SSD (Chris Rogers/Scott Berg)
    • Tracking (Ao/Ryan/Chris Hunt/Chris Rogers)
    • Algorithm to calculate the phase space volume (vs RMS emittance)
    • Track fitting/extrapolation for indirect emittance measurement
  • Bayesian analysis (Rob Ryne)
  • Demonstration of Ionisation Cooling paper (Jaroslaw/JB Lagrange)
  • Demonstration of Ionisation Cooling optics w/o Match Coil 1 in downstream Spectrometer Solenoid (Dave Neuffer)
  • Demonstration of Ionisation Cooling alignment and tolerances (Alan Young)


Chris Rogers
Tanaz Mohayai
Scott Berg
JB Lagrange
Ao Liu
Paul Kyberd
Rob Ryne

Rogers FC misalignment measurement
  • Actual misalignment is unknown; does the cancellation/turnaround still happen the same for tilt and displacement?
  • Maybe this motivates a current scan?
Ao Liu - Optics without M1
  • Started to run the optimisation; NERSC is a bit unstable, results have come through this morning
  • Discussion of what we will need to present at Fermilab 3/4 December (no real conclusion)
  • Rogers to complain/ask what is expected of him at December review
  • Rob Ryne - it was just a crowded day
  • Discussion of NERSC queues
Option 3 for demo
  • Beta is too large in FC for fully matched solution at 4 T
  • Do we need to track the 2 T option?
Cooling demo
  • Finalising paper with Ken Long
  • Ken Long has made comments, JB will send it around this weekend

Updated by Rogers, Chris over 7 years ago ยท 3 revisions