Fusion energy will require materials that can endure intense particle bombardment and 150-million-degree plasmas inside commercial reactors. To help meet this challenge, MIT’s Plasma Science and Fusion Center is establishing the Schmidt Laboratory for Materials in Nuclear Technologies (LMNT). Supported by Eric and Wendy Schmidt, LMNT will use high-energy proton irradiation from a compact cyclotron to reproduce fusion-relevant damage in structural materials, enabling testing that would otherwise take years to occur. LMNT will be built within the former Alcator C-Mod tokamak hall and will incorporate four experimental areas dedicated to materials studies. By combining MIT’s existing infrastructure, multidisciplinary expertise, and collaborations with private fusion companies, the facility will create a platform for rapid, iterative evaluation of candidate materials for fusion power plant components. LMNT will also support research in fission energy systems, particle physics experiments, and related scientific applications. Once operational, LMNT will provide students with hands-on experience in nuclear materials science and fusion technology development, integrating educational opportunities directly into the facility’s research mission.
Commercial fusion energy will depend on materials that can withstand conditions far more extreme than those found in today’s devices. Traditional testing approaches—using low-energy particle beams or fission reactor irradiation—are slow, costly, and unable to reliably reproduce fusion damage mechanisms. LMNT will address this gap by using proton irradiation to create deeper, more accurate damage profiles in materials and by enabling rapid testing cycles.
This capability will be important for:
Advancing fusion development: Faster materials qualification will help shorten timelines for designing and building future fusion power plant components.
Reducing technical uncertainty: Proton-based testing will allow researchers and industry partners to evaluate material performance earlier in the design process.
Supporting clean-energy goals: Reliable materials data will be essential for making fusion a viable, long-term, carbon-free energy source.
Training future experts: LMNT will offer students opportunities to work directly with fusion-relevant materials research and facility operations.
Extending impact beyond fusion: The facility will also support materials development for fission reactors, particle accelerators, and other advanced technologies.
By enabling faster, more representative materials testing, LMNT will help position MIT as a key contributor to the scientific and technological foundations needed for next-generation energy systems.
