Advanced Light Source (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Overlooking the San Francisco Bay, Berkeley Lab's Advanced Light Source is a DOE Office of Science national user facility providing premier beams of X-ray and ultraviolet light for scientific research. Credit Photo by Roy Kaltschmidt, Berkeley Lab Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.