Reversed-field pinch
A toroidal configuration where the field reverses direction at the plasma edge, allowing confinement at much lower external field than a tokamak. That has come at the cost of confinement quality: RFPs have not matched tokamak performance, and closing that gap without the stronger field is the configuration's main open problem.
In the record: 0 companies, 0 laboratories and programmes, 5 devices and 0 reactor designs.
Not yet in the record for this approach: companies or reactor designs.
Related approaches
Broader: Magnetic confinement
Devices 5
Operating devices first, then those being built or planned, then those shut down, suspended or cancelled.
- EXTRAP T2R Operating KTH Royal Institute of Technology · SE
- KTX Operating University of Science and Technology of China · CN · 3 measurements
- MST Operating University of Wisconsin-Madison · US
- RELAX Operating Kyoto Institute of Technology · JP · 2 measurements
- RFX Under construction Consorzio RFX · IT · 3 measurements
Measurements
3 devices using this approach carry 8 measurements: 8 claimed. The values, each with its status and source, are on the benchmark and on each device's page. Most measured: KTX (3), RFX (3), RELAX (2).
Guides
- Fusion approaches compared Every family of fusion machine, how each holds its fuel, the best result this dataset holds for it, its main unsolved problem and the organisations pursuing it.
Reversed-field pinch in the glossary · Fusion overview · All approaches