IBIC2026 - 15th International Beam Instrumentation Conference

Beam position stability and global orbit feedback system at SESAME

TUP043

1 Sept 2026, 16:20

2h

Ballroom C (Whistler Conference Centre)

Poster Presentation MC06: Feedback Systems and Beam Stability Tuesday Poster Session 2

Speaker

Hussein Al-Mohammad (Synchrotron-Light for Experimental Science and Applications in the Middle East)

Description

Since becoming a user facility in 2017, SESAME has
employed a Slow Orbit Feedback (SOFB) system, implemented in MATLAB, to stabilize the global orbit of the Storage Ring (SR) at a low correction rate of 0.2 Hz. However, achieving improved synchrotron performance requires sub-micron beam orbit stability across a broader frequency
range, extending up to 100 Hz. To address this, the SOFB
system has been upgraded to operate at 10 Hz sampling rate
using an in-house developed control system written in C,
marking an important first step toward a Fast Orbit Feedback
(FOFB) system. This paper presents the upgraded SOFB,
its performance, beam position st ability studies and preliminary studies toward the development of a full FOFB system,
including the necessary system requirements and potential
implementation strategies