A Space Physics Inspired Approach to Magnet Confinement Fusion: Converging Plasma Pistons

A novel approach to Magnetic Confinement Fusion (MCF), first published in US Patent #11,744,002, “System of Converging Plasma Pistons” (also patent pending U.S. 2024/0015876 A1) is presented. The concept is a linear machine suitable for high-β D-T pulsed nuclear fusion reactors wherein plasma “pistons” form part of the confinement system at either end of the fusing plasma, resulting in a unique magnetic configuration. In the process of formation, the pistons compress and heat a “target plasma” that becomes the fusion core. The physics is partially inspired by observation of plasma phenomena in the Heliosphere such as corotating interaction regions (CIRs). The plausibility of a reactor is explored in a “back-of-the-envelope” study based, where possible, on relevant experimental results and, where necessary, extrapolation of those results. Insights developed subsequent to the patent disclosure are described, particularly the interface between pistons and the fusion core. The goal is to determine what further study is justified and point towards modeling and experimentation needed to bring the concept to fruition, or to determine if it is a dead end so far as a practical energy producing fusion reactor is concerned, as with so many concepts before it. While the physics is decidedly high risk/high reward, the underlying technologies are relatively well developed, reducing technical risk.