Wendelstein 7-X

The flagship stellarator demonstrating disruption-free, steady-state confinement.

Type

Stellarator

Demonstrates

Disruption-free steady state

Wendelstein 7-X is the leading optimised stellarator, demonstrating that carefully shaped external coils can confine plasma steadily without a plasma current or disruptions. It defines the state of the art for the stellarator route.

Kronos does not use a stellarator, but W7-X frames why the tokamak's current — which the breeder must drive — is a design consideration.