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Two nuclear fusion companies are setting up shop in disused industrial buildings. Realta Fusion just named a Madison, Wis., location for its “Realta Forge.” Meanwhile, last week, Inertia Enterprises announced the opening of its new headquarters in Livermore, Calif.
Realta Fusion announced it has achieved direct energy conversion at the Wisconsin HTS Axisymmetric Mirror (WHAM), powering a lightbulb using electricity extracted from charged particles emitted by the plasma.
This process, called direct energy conversion (DEC), was theorized by Richard Post, a physicist at Lawrence Livermore National Laboratory, and has been demonstrated experimentally a few times, the earliest being the “Venetian blind” converter in the 1970s.
A new type of cold spray coating, made from the metal tantalum and applied to the plasma-facing steel walls of fusion reactors, could lead to efficient, compact fusion reactors that are easy to repair and maintain, according to a study recently published in the journal Physica Scripta. The study was led by scientists and engineers at the University of Wisconsin–Madison and involved researchers from South Korea, France, and Germany.