1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Exploring the null space of the chromaticity response matrix at the Diamond Light Source

MOPS015
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC2.A05 Synchrotron Radiation Facilities Monday Poster Session

Speaker

Neven Blaskovic Kraljevic (Diamond Light Source)

Description

Many different techniques have been investigated at Diamond for optimising sextupole strengths*. One method not previously studied is to exploit the null space of the chromaticity response matrix. By performing a singular value decomposition (SVD) of the chromaticity response matrix, combinations of sextupole strengths are identified which alter the nonlinear lattice whilst keeping the chromaticity unchanged. Applying these sextupole strength changes opens an avenue to improve the beam lifetime and the injection efficiency at fixed chromaticity, thereby preserving the instability thresholds from collective effects. The results of applying this technique are presented both for beam tracking simulations for the Diamond-II lattice, including machine errors, and for machine-based measurements on the present Diamond synchrotron.

Footnotes

*J. Bengtsson et al., “On-line control of the nonlinear dynamics for synchrotrons”, Phys. Rev. Accel. Beams, vol. 18, p. 074002, 2015.

Region represented Europe
Paper preparation format LaTeX

Author

Neven Blaskovic Kraljevic (Diamond Light Source)

Co-authors

Dr Hossein Ghasem (Diamond Light Source) Ian Martin (Diamond Light Source)

Presentation materials

There are no materials yet.