Undulators (IMAGE) Helmholtz-Zentrum Dresden-Rossendorf Caption The electrons from the ELBE accelerator generate laser light in one of the two blue-metallic magnetic structures, the so-called undulators. Credit HZDR/Christoph Reichelt Usage Restrictions none License Original 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.