DIII-D

A versatile tokamak that pioneered plasma shaping and negative-triangularity studies.

Type

Shaped tokamak

Relevance

Negative-δ physics

DIII-D is a flexible tokamak known for advancing plasma shaping, transport and stability physics, including experiments on negative triangularity — the configuration HYPERION adopts (δ = -0.30).

Kronos's shaping choices rest on results from machines like this.