Nov 12 – 14, 2025
Hotel Lahan, Pohang, Korea
Asia/Seoul timezone

Analysis of Orbit Stability under External Perturbations in Low‑Emittance Storage Rings

Nov 13, 2025, 9:20 AM
20m
5F Grand Hall (LAHAN Hotel)

5F Grand Hall

LAHAN Hotel

Oral Working group 2: Beam physics, diagnostics and novel techniques

Speaker

GYEONGSU JANG (Pohang Accelerator Laboratory)

Description

The beam stability relative to the beam size is a key performance parameter for storage ring light sources. In next‑generation storage rings, the substantial reduction in natural emittance makes the electron beam orbit far more sensitive to external perturbations. As a result, orbit stability must be controlled to within only a few percent of the beam size across a broad frequency range. In this work, we investigate how ground vibrations, magnet power‑supply ripple, and RF‑induced energy variation contribute to the electron beam orbit stability as a function of frequency.

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Primary author

GYEONGSU JANG (Pohang Accelerator Laboratory)

Co-authors

Hyunchang Jin (KBSI) Jaehyun Kim (Pohang Accelerator Laboratory (PAL)) Jaeyu Lee (Pohang Accelerator Laboratory) Jimin Seok (PAL) JunHa Kim

Presentation materials

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