Yimei Zhu and Junjie Li (IMAGE) DOE/Brookhaven National Laboratory Caption Yimei Zhu and Junjie Li at the 3 MeV ultrafast electron diffraction instrument at Brookhaven National Laboratory's Accelerator Test Facility. This instrument acts like a high-resolution stroboscopic "camera" to track trajectories of atoms. Credit Brookhaven National Laboratory Usage Restrictions OK for use with stories about this research or this instrument. 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.