Difference between revisions of "Jan 17 2024"
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| Line 4: | Line 4: | ||
* Alicia | * Alicia | ||
* Max: | * Max: | ||
| + | ** R28 measurements at UITF | ||
| + | *** Moved laser spot on grid | ||
| + | *** [[media:20240116_uitf_r28_solenoid.pdf|Orbits extrapolated from solenoid center]] giving 15--20 cm focal length | ||
| + | *** [[media:20240116_uitf_r28_bpms.pdf|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 | ** Tolerance on hole diameter | ||
*** [[media:20240116_hole_comparison.pdf|Comparison 6.2 mm and 6.4 mm]] | *** [[media:20240116_hole_comparison.pdf|Comparison 6.2 mm and 6.4 mm]] | ||
Latest revision as of 21:34, 16 January 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[edit|edit source]
- 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
- R28 measurements at UITF
- Carlos: Created table of parameters and SharePoint site
Items for discussion[edit|edit source]
Action items for next meeting[edit|edit source]