EAJADE and CERN Secondments to SuperKEKB, Correction of sextupole misalignments (+ FCC-ee collider optics)

Date

2023/07/21 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.

Release date 2023/07/14 Updated 2024/03/02