As one of 17 Department of Energy national labs, SLAC is a multi-program lab that 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. A world-leading lab in X-ray and ultra fast science, SLAC is home to the Linac Coherent Light Source (LCLS), the first hard X-ray free electron laser and the Stanford Synchrotron Radiation Lightsource. The lab is also upgrading LCLS to boost its power and capacity and is managing the construction of the world’s largest digital camera.