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MULTI SOURCE VERIFIED • Conf: 98%

JT-60SA Tokamak Maintains Continuous Plasma Confinement for 1000 Seconds

Naka superconducting experiment achieves major magnetic stability benchmark.
By Kenji Sato — Science Correspondent 2026-10-30 • 4 min read

NAKA, JAPAN — Fusion researchers achieved a major milestone today as the JT-60SA superconducting tokamak maintained high-confinement plasma for over 1000 continuous seconds, providing essential empirical benchmarks for international commercial reactor designs.

Journalistic Evidence & Primary Record Citations

Eight Columns operates an immutable multi-source verification protocol. The factual claims above were corroborated against the following primary documents:

naka.jaea.go.jp • Tier 1 (PRIMARY DOCUMENT)
Naka Institute

“Continuous 1000s plasma sustained.”

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