Lithium-Indium-Phosphorous-Selenium (IMAGE) Northwestern University Caption New material (lithium-indium-phosphorous-selenium) is lithium-rich, making the semiconductor neutron detector possible. Credit Northwestern University/Argonne National 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.