PC-2015-11-19-optics¶

15:00 in the ATLAS building

Phone Details¶

http://mice.iit.edu/phonebridge.html

Agenda¶

• 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)

Notes¶

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