S22-239 A Tunable, Nanophotonic Metamaterial 'Super Scintillator' for PET Imaging Stanford scientists have invented a new PET-nanophotonic metamaterial scintillator that consists of tunable scintillating alkaline-earth rare-earth fluoride nanoparticles (MLnF) for low-dose, high-resolution PET imaging. Parivash Moradifar Garry Chinn Craig Levin Jennifer Dionne Yushin Kim