Wendelstein 7-X sets a triple product record for long-duration plasmas
Wendelstein 7-X reported a world record triple product for long plasma discharges, sustained for 43 seconds, exceeding previous long-duration values held by tokamaks. The same campaign reported an energy turnover of 1.8 gigajoules over a 360-second discharge and plasma pressure reaching 3% of magnetic pressure across the full plasma volume for the first time. The device runs on hydrogen and helium, so this is a confinement-quality result and not a fusion energy result.
Observed — measured or witnessed, with the observation cited.
Subjects
- Wendelstein 7-X · research facility · Germany · not located
- Stellarator · confinement concept · not located
- Fusion triple product (n·T·τ_E) · physical condition · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Wendelstein 7-X sets new performance records in fusion research
An optimised stellarator has matched or exceeded tokamak triple-product values for long-duration plasmas, establishing magnetic confinement as more than one design lineage
Max Planck Institute for Plasma Physics (IPP) / EUROfusion · 2025-06 · Partly verified
IPP press release, ipp.mpg.de/5532945/w7x, and EUROfusion news 'Wendelstein 7-X sets World record for long plasma triple product'; record triple product for long discharges sustained 43 s on 22 May 2025, energy turnover 1.8 GJ over a 360 s discharge, plasma pressure 3% of magnetic pressure across the full volume
Recorded on Wendelstein 7-X
- Spitzer proposes the stellarator; Project Matterhorn begins at Princeton
- NIF exceeds the Lawson criterion for ignition
- EAST sustains a high-confinement plasma for 1,066 seconds
- Wendelstein 7-X sets a triple product record for long-duration plasmas
Related
Related because they share a subject in the Atlas — never because the text looks similar.