Optics and Magnets¶

Thursday 14th April 15:00 BST; we will be in the MICE meeting room in R1.

Phone Details¶

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

Agenda¶

• Field mapping (Victoria/John Cobb/Jo Langlands)
• Theoretical magnet parameters and effect of iron (Jaroslaw/Victoria)
• Transfer matrix and magnet alignment (Sophie/Chris Rogers)
• Beamline commissioning (Victoria/Jaroslaw)
  • Improving rate using pions (Jan/Paolo)
• Step IV Optics (Ao Liu/Scott Berg)
  • Tracking (Ao/Ryan/Chris Hunt/Chris Rogers)
• Algorithm to calculate the phase space volume (vs RMS emittance) (Tanaz Mohayai/Chris Rogers)
• Bayesian analysis (Rob Ryne)
• Demonstration of Ionisation Cooling paper (Jaroslaw/JB Lagrange)
• Demonstration of Ionisation Cooling alignment and tolerances (Alan Young)
• AOB
• Date of Next Meeting
  • Thursday 24th March
  • CM44
  • Thursday 28th April - workshop

Notes¶

Paul Soler
Jaroslaw Pasternak
Tanaz Mohayai
Joe Langlands
Dave Neuffer

Make a field map of thin long coil and short fat coil; mix them to find a best fit; update the field maps;

• JHC comments there are "better and less good" ways to do the fit
• PS/CTR comments that if there are misalignments/etc in the hall probe data, they should be fixed before attempting any fitting
• JHC suggests meeting with JL/VB

Beamline focus session

• To go on workshop agenda

M2D issues

• On Ao's list
• Issue is

KDE - Tanaz

• Estimated densities in 4D;
• Data uploaded to 1839

Plastic absorbers - looks like plastic absorbers are at equilibrium emittnace in lattice shown

• We would rather have LiH than the RF power supply if we had to make a decision

descope thoughts

• General configuration options
• FC RF Abs FC RF SS
• TKU FC RF Abs FC RF SS
• RF FC Abs FC RF SS
• Discuss/understand risk; would we want to junk SSD regardless because risk is too large that it fails?
• Action: Question the engineers
  • From MEMO 19 April: Colin Whyte gives us guidance that we can do anything reasonable with axial positions of optics elements
  • Best to steer clear of the supports
• Action: Stability of beamline
• Action: Need to study optics
• Action: reconstruction of TKU in FC