ATAP:BSE-lead (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Kei Nakamura, Antoine Snijders and Lieselotte Obst-Huebl (from left) at the BELLA laser facility aligning cartridges containing human cells in the proton beam path. This setup enabled measurements of the biological effects of laser-driven protons. Credit (Credit: Thor Swift/Berkeley Lab) 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.