The Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory is a U.S. Department of Energy user facility that provides researchers worldwide with bright beams of ultraviolet and x-ray light for studies in physics, materials science, chemistry, and biology.
Operating a 1.9 GeV electron storage ring in continuous top-off mode, the ALS delivers stable, high-brightness light to nearly 43 beamlines.
The upcoming ALS-U upgrade will boost brightness by more than 100×, enabling experiments with nanometer spatial and nanosecond temporal resolution.
The Accelerator Physics Group develops and operates the accelerator systems that enable the Advanced Light Source to deliver stable, high-brightness beams for user experiments.
We advance lattice design, insertion devices, beam dynamics, and feedback systems to ensure reliable, high-uptime operation of the light source.
Building on decades of accelerator expertise, our current efforts focus on AI-assisted control, data-driven optimization, and digital-twin modeling to prepare for the ALS-U era and the next generation of light-source performance.
| Project | Description |
|---|---|
| 🦅 Osprey Framework — Repo · Paper · Docs | Orchestrated AI framework for multi-agent scientific workflows |
| 🤖 ALS Assistant — Repo · Paper | Accelerator-aware AI assistant for real-time operations and research |
| 🧠 AccPhysBERT — Model · Paper | Domain-specific text embedding model for accelerator physics literature |
| 🧠 PhysBERT — Model · Paper | Domain-specific text embedding model for physics scientific literature |
Our repositories are released under open-source licenses.
Please refer to individual project directories for specific license details.
Funded by the U.S. Department of Energy, Office of Science.
© 2025 Lawrence Berkeley National Laboratory.
Operated by the University of California for the U.S. Department of Energy, Office of Science.