Reference Devices
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.
Common questions
What is DIII-D's contribution?
DIII-D is a versatile tokamak that produced much of the shaping, stability and negative-triangularity physics Kronos draws on — including the edge behaviour behind HYPERION's shape choice.
Why cite it for negative triangularity?
Because experiments there and on similar machines demonstrated that negative triangularity can suppress edge modes while keeping good confinement, grounding Kronos's design choice in data.