17–22 May 2026
C.I.D
Europe/Zurich timezone

Impact of VPU on Beam Dynamics in the SIRIUS Storage Ring

TUP2338
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.T15: Photon sources: Undulators and Wigglers Poster session

Speaker

Gabriel Ascenção (Brazilian Synchrotron Light Laboratory)

Description

This work evaluates the effects of the first vertical polarization undulators (VPUs) installed in the SIRIUS storage ring on electron-beam dynamics. These insertion devices (IDs) are light sources for the CARNAÚBA and CATERETÊ beamlines at the Brazilian Synchrotron Light Laboratory (LNLS). The analysis combines numerical simulations and beam-based measurements to quantify static and dynamic orbit distortions, optics perturbations (beta-beating and tune shifts), effects on injection efficiency, and changes in equilibrium beam parameters, including beam lifetime. The effectiveness of ID feed-forward compensation in mitigating these effects is assessed. Results characterize the operational impact of the VPUs on storage ring performance, providing safe conditions for beamline operation.

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Author

Jefferson Vieira (Brazilian Synchrotron Light Laboratory)

Co-authors

Gabriel Ascenção (Brazilian Synchrotron Light Laboratory) Sergio Luiz (Brazilian Synchrotron Light Laboratory)

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