Physicists overcome two key operating hurdles in fusion reactions

https://phys.org/news/2024-04-physicists-key-hurdles-fusion-reactions.html

"raising reactor plasma density while also keeping it stable... contained plasma as density increased using additional magnets, deuterium bursts, where needed... higher densities at core than near edges, deeping plasma from escaping... held state for 2.2 seconds (validating) during which average density >20% over Greenwald limit theoretical barrier predicted to mark the point at which adding pressure would escape the magnetic field holding the plasma in place... plasma stability H98y2 above 1 (validating)"

See also: Two seconds of hope for fusion power
https://arstechnica.com/science/2024/05/two-seconds-of-hope-for-fusion-power/

Related: Start-up Helical Fusion plans world’s first steady-state fusion reactor for 2034 launch (
https://tribune.com.pk/story/2492333/japan-start-up-plans-worlds-first-steady-state-fusion-reactor-for-2034-launch