1. movers
2. interferometer or laser straight edge (or neither)?
3. STS-2 seismometer and Hall probe measurements
4. nanobpm project updates and comparisons:
some differences between ESA and ATF measurements
- cylindrical
vs rectangular rf bpm cavities
- emphasis on
horizontal chicane and horizontal stability in ESA; emphasis on vertical
at ATF
(ILC energy spectrometer chicane must be horizontal)
- higher beam
energy in ESA (less sensitivity to stray fields)
- smaller
beam sizes in ATF (closer to ILC)
5. complete prescription for energy measurement needed, including
calibration and additional external
measurements
6. optimizing existing design:
- is 100-nm BPM stability
really needed? Improve design to relax to 0.5-1.0 micron stability?
- 4-magnet chicane rather
than 3-magnet?
- tolerable angles in
BPMs?