China appears to be building a large laser-ignited fusion research centre in the southwestern city of Mianyang, experts at two analytical organisations say, a development that could aid nuclear weapons design and work exploring power generation. Satellite photos show four outlying “arms” that will house laser bays, and a central experiment bay that will hold a target chamber containing hydrogen isotopes the powerful lasers will fuse together, producing energy, said Decker Eveleth, a researcher at U.S.-based independent research organisation CNA Corp. It is a similar layout to the $3.5 billion U.S. National Ignition Facility (NIF) in Northern California, which in 2022 generated more energy from a fusion reaction than the lasers pumped into the target – “scientific breakeven”. Eveleth, who is working with analysts at the James Martin Center for Nonproliferation Studies (CNS), estimates the experiment bay at the Chinese facility is about 50% bigger than the one at NIF, currently the world’s largest. The development has not been previously reported. “Any country with an NIF-type facility can and probably will be increasing their confidence and improving existing weapons designs, and facilitating the design of future bomb designs without testing” the weapons themselves, said William Alberque, a nuclear policy analyst at the Henry L. Stimson Centre.

Full exclusive : China is building a huge Nuclear fusion research facility in Mianyang.