SLAC National Accelerator Laboratory

As one of 17 Department of Energy national labs, SLAC pushes the frontiers of human knowledge and drives discoveries that benefit humankind. We invent the tools that make those discoveries possible and share them with scientists all over the world.

Our 2-mile-long particle accelerator is the lab’s backbone. Once the scene of major discoveries in particle physics, today it generates the world’s brightest X-rays for our revolutionary X-ray laser, the Linac Coherent Light Source (LCLS).

More than 2,000 scientists come to SLAC each year to use LCLS and the Stanford Synchrotron Radiation Lightsource to probe matter in atomic detail. These X-ray studies help scientists understand the fundamental workings of nature and find solutions to real-world problems.

Stanford University operates SLAC for the DOE Office of Science. We run four joint research centers with Stanford that focus on cosmology and astrophysics, materials and energy science, catalysis, and ultrafast science. SLAC’s location in Silicon Valley and our connections with DOE, Stanford and other leading research centers speed our progress. We also look for ways to work with industry to solve problems and spread the benefits of research out into society.