Focus Fusion Prototype Electric Generators
LPP’s Focus Fusion project aims at developing an electric generator with a projected output of about 5 MW. Since the Focus Fusion process can produce electricity directly. The generators are extremely compact and economical, with projected costs based on engineering estimates as low as $300,000. As the fuel is an insignificant cost, electric power production is estimated at about one tenth of a cent per kWh, fifty times cheaper than current costs.
The figures below illustrate the conceptual design of a Focus Fusion Generator. The generator is based on the Dense Plasma focus. When the focus is used for fusion generation, collisions of the ions with each other in the dense plasmoid cause fusion reactions which add more energy to the plasmoid. This excess energy is expelled, together with the energy that went into forming the plasmoid, in the form of an ion beam. (The energy of the electron beam is dissipated inside the plasmoid to heat it.) This happens even though the plasmoid only lasts 10 ns (billionths of a second) or so, because the very high density in the plasmoid, close to solid density, make collisions very likely and they occur extremely rapidly.
The ion beam of charged particles is directed into a decelerator which acts like a particle accelerator in reverse. Instead of using electricity to accelerate charged particles they decelerate charged particles and generate electricity. Some of this electricity is recycled to power the next fusion pulse while the excess, the net energy, is the electricity produced by the fusion power plant. Some of the X-ray energy produced by the plasmoid can also be directly converted to electricity.
The figures below illustrate the conceptual design of a Focus Fusion generator.