Commonwealth Fusion Systems, headquartered in Devens, Mass., has been selected by the U.K. Atomic Energy Authority as the first international partner for the agency’s Lithium Breeding Tritium Innovation (LIBRTI) program. LIBRTI is a U.K. government initiative with the goal of demonstrating the feasibility of fusion power plant–relevant fuel technologies.

The UKAEA is creating a first-of-a-kind technology facility, called the LIBRTI Facility, at its Culham Campus. It will house a test bed made of a 14-MeV neutron source in a shielded blockhouse. This structure will be surrounded by rooms for the assembly and disassembly of multiton breeder blanket prototypes.