Jan 17 2024

Max: Some misleading links to a previous meeting have accidentally been hardcoded on this page. Can't click the edit buttons next to the section headings.

Updates from last meeting action items

• Gabriel:
• Alicia
• Max:
  • R28 measurements at UITF
    • Moved laser spot on grid
    • Orbits extrapolated from solenoid center giving 15--20 cm focal length
    • Orbits extrapolated from BPMs giving 25 cm focal length
    • Measurements don't agree 100%, but this gun focuses a little more strongly than what we've seen from the R28
    • Could be the puck, may have more recess than the previous one
    • Does not seem to be a big deal operationally, likely would have remained unnoticed
  • Tolerance on hole diameter
    • Comparison 6.2 mm and 6.4 mm
    • Seems to be a 10% effect
  • Junction angle, does it matter optically?
    • Comparison 30 and 60 degrees
    • Also seems to be a 10% effect
  • Effect of edge radius at junction
    • Zoomed out
    • 0.5 mm radius
    • 0.25 mm radius
    • 0.25 mm radius, protruding lip
    • This may not end up being a big deal. The protruding case has the worst field enhancement, perhaps 20%, need finer mesh to quantify. Small radius w/o protrusion is best, barely worse than a smooth joint.
  • CST vs Poisson
    • Comparing Ez for a test case
    • Not exactly equal, not 100% sure yet if caused by different geometry or cylindrical symmetry
• Carlos: Created table of parameters and SharePoint site

Items for discussion

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Action items for next meeting

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