US plasma effect breakthrough could boost nuclear fusion reactor efficiency, lifespan

Scientists at Lawrence Livermore National Laboratory discovered "backflow saturation," a phenomenon affecting electron flow in plasma that challenges the space charge effect assumption. This occurs when emitted electrons reverse direction toward the cathode, potentially reducing ion impact energy and surface erosion in plasma devices. The discovery could improve plasma technologies, especially in nuclear fusion reactors. The team developed advanced simulations to model the system but emphasizes the need for experimental validation.