A View of the LCLS (image) DOE/SLAC National Accelerator Laboratory Caption Thirty-three LCLS undulator magnets create intense X-ray laser light from a pulse of electrons traveling 99.9999999 percent the speed of light. Credit Image courtesy of Brad Plummer, SLAC. Usage Restrictions Please credit where possible. 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.