PGAA (IMAGE) Technical University of Munich (TUM) Caption This image shows Dr. Stefan Seidlmayer and Dr. Petra Kudejova inserting a sample of the electrode material into the PGAA instrument at Technical University of Munich's Research Neutron Source FRM II. Credit Claudia Niiranen / TUM 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.