New US nuclear fusion project could use plasma jets to skip lasers

Los Alamos National Laboratory (LANL) is advancing a novel approach to nuclear fusion through its Plasma Liner Experiment (PLX), which uses 36 plasma guns to fire high-speed plasma jets that converge into an imploding plasma liner. This liner compresses a magnetized target to achieve the extreme heat and pressure necessary for fusion, mimicking the sun’s energy generation process. Unlike traditional fusion methods that rely on massive superconducting magnets or large lasers, PLX’s modular and scalable design offers a potentially simpler, more affordable, and compact path toward grid-scale fusion energy. LANL is currently seeking commercial partners to collaborate on further developing this technology, with proposals due by October 4, 2025. In the near term, PLX also serves as a unique facility to recreate extreme conditions for testing aerospace and defense materials, such as heat shields for hypersonic vehicles and spacecraft re-entry components—capabilities that are currently scarce. Over the next decade, the goal is to establish PLX