2023
07/21
OPEN
Date
2023/07/21(Tri.) 10:00～12:00
Venue
3rd build. 1F Meeting room + Zoom
Speaker
Frank Zimmerman, Katsunobu Oide
Language
English
URL
Contact
M. Masuzawa (PHS 4692)
Overview
F. Zimmerman
“EAJADE and CERN Secondments to SuperKEKB”
K. Oide
“Correction of sextupole misalignments (+ FCC-ee collider optics)”
The misalignment of sextupole magnets gives the most stringent condition to achieve a small vertical emittance in an electron storage ring or a collider.
This talk will present a possibility to correct the misalignment looking at turn-by-turn measurements of x-y coupling and dispersion by BPMs, then feedback to skew quadrupole correction winding on the sextupoles by reverting an analytic response matrix.
If it is applied to the FCC-ee ring, the resulting vertical emittance will be below the requirement, under a very loose resolution of the BPM, around 200 um/shot.