PRISIM (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption The Portable Radiation Imaging, Spectroscopic and Mapping (PRISM) system is a portable radiation imaging system. Credit Erika Suzuki/Berkeley Lab 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.