Physics of Plasmas – Formation of a long-lived hot field reversed configuration by dynamically merging two colliding high-β compact toroids (H/T Talk Polywell
Tri-Alpha energy (which has about $100 million in funding for field reversed nuclear fusion) had a paper in May 2011.
Colliding toroids sounds like Helion Energy.
This picture is from Helion, do not have an image of the Tri-alpha Energy colliding toroid setup
A high temperature field reversed configuration (FRC) has been produced in the newly built, world’s largest compact toroid (CT) facility, C-2, by colliding and merging two high-β CTs produced using the advanced field-reversed θ-pinch technology. This long-lived, stable merged state exhibits the following key properties: (1) apparent increase in the poloidal flux from the first pass to the final merged state, (2) significantly improved confinement compared to conventional θ-pinch FRCs with flux decay rates approaching classical values in some cases, (3) strong conversion from kinetic energy into thermal energy with total temperature (Te + Ti) exceeding 0.5 keV, predominantly into the ion channel. Detailed modeling using a new 2-D resistive magnetohydrodynamic (MHD) code, LamyRidge, has demonstrated, for the first time, the formation, translation, and merging/reconnection dynamics of such extremely high-β plasmas.
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