Magnets and Optics¶

Phone Details¶

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

Agenda¶

• Field mapping (Victoria/John Cobb)
• 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)
• 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)
• Date of next meeting
  • October 22nd
  • October 29th is CM43

Notes¶

Chris Rogers
Dave Neuffer
Scott Berg
Victoria Blackmore

Field mapping will write MICE Note

Beamline analysis

• Blocked by reprocessing

M1/SSU Optics

• Note that there is a concern with powering the M2 asymmetrically; may be an issue with the bobbin moving and making a heat leak
• Conclusion: need to keep symmetric solution on the cards and do a force calculation

Demonstration of Ionisation Cooling optics w/o Match Coil 1 in downstream Spectrometer Solenoid (Dave Neuffer)

• Switch off M1, looks like betatron function oscillates between 1.6 m and 0.1 m
• Desire betatron function in the tracker to be as flat as possible; try rematching downstream focus coil and downstream m2; how flat can you get beta in the d/s spectrometer?
• Slides by the end of the week