ORNL's tandem technologies (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL’s tandem technologies detect fluorine and isotopes of uranium at the same time to discern the fingerprint of a nuclear material made for fuel or weaponry. Credit Benjamin Manard and Jacquelyn DeMink/ORNL, U.S. Dept. of Energy 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.