This $841,884.88 federal grant award from the National Aeronautics and Space Administration (NASA) to the Planetary Science Institute (PSI), a non-profit research organization, aims to evaluate a new scintillator material, europium doped strontium iodide, for use in planetary gamma ray spectroscopy. The award funds sensor manufacturing and testing, as well as studies on radiation damage and energetic particle response. While modeling and analysis tasks and sensor evaluation were descoped, this grant supports PSI's expertise in planetary science research to advance NASA's goals of expanding scientific knowledge through new discoveries enabled by spacecraft missions. The award does not have a set-aside designation, reflecting PSI's competitive capabilities in this area. PSI frequently collaborates with university partners and other research organizations on NASA-funded projects through subawards.