The Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory, a third-generation synchrotron light source operational since 1992, is undergoing a comprehensive upgrade of its storage ring RF control system. The legacy Horner PLC controllers and remote I/O modules, now at end-of-life, are being replaced with an Allen-Bradley PLC platform to improve maintainability, reliability, and long-term support. This paper presents the planning, design, and current status of the upgrade project.
Cite
@article{arxiv.2512.07996,
title = {ALS Storage Ring RF Control System Upgrade Plan and Status},
author = {Najm Us Saqib and Angel Jurado and Esteban Andrade and Qiang Du and Jeong Han Lee and Miroslaw Dach and Benjamin Flugstad},
journal= {arXiv preprint arXiv:2512.07996},
year = {2025}
}