(source: https://www.rsc.org/periodic-table/element/71/lutetium)

Lutetium is used in phosphors (Rare earth activated lutetium oxysulfide phosphor for direct x-ray detection (2005)), and scintillators for X-ray detection (Lutetium Oxide-Based Transparent Ceramic Scintillators (2013)).

The performance of NdYAG laser crystals can be enhanced by substituting yttrium ions in the host lattice by smaller lutetium ions which subsequently allows a larger proportion of Nd dopant: Lutetium Neodymium Doped Yttrium Aluminum Garnet (1972).


All patent information has been obtained from Espacenet (European Patent Office).