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 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 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 stability studies and preliminary studies toward the development of a full FOFB system, including the necessary system requirements and potential implementation strategies.