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Tabletop Fusion: Startup's Tiny Reactor Promises Big Energy
14 Oct
Summary
- A startup has developed a tabletop-sized fusion reactor.
- The reactor uses a novel laser compression method with fewer lasers.
- The company plans to produce rare tritium before aiming for power plants.
Cambridge Heavy Industries, a startup operating near MIT, has developed a fusion reactor small enough to fit on a tabletop. Unlike conventional fusion facilities, this compact modular reactor enables rapid experimentation and design optimization through AI-driven simulations.
The company's novel approach utilizes lasers to compress fuel, minimizing the number of lasers needed for ignition. This system employs two main lasers, one split to create concentric rings of light that successively compress the fuel target, generating the necessary heat and magnetic field for fusion.
This method, emerging from MIT research, achieves high pressures with relatively low laser power. Cambridge Heavy Industries secured $6.2 million in seed funding, led by Azolla Ventures, to advance its technology.
While a full-scale power plant is envisioned in about a decade, requiring a facility the size of two basketball courts, the startup's immediate focus is on producing tritium. This rare hydrogen isotope is vital for most current fusion power plant designs, and Cambridge Heavy aims to capitalize on its scarcity and high market value before its own power plant becomes operational.
