Goniometer (IMAGE) DOE/SLAC National Accelerator Laboratory Caption This image shows equipment used in a highly automated, robotic X-ray crystallography system at SLAC's Linac Coherent Light Source X-ray laser. The metal drum at lower left contains liquid nitrogen for cooling crystallized samples studied with LCLS's intense X-ray pulses. This setup was used in an experiment exploring the molecular machinery involved in brain signaling in atomic-scale detail. Credit SLAC National Accelerator Laboratory 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.