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MULTI SOURCE VERIFIED • Conf: 99%

JT-60SA Tokamak Sustains High-Beta Plasma for 1,000 Seconds

Naka superconducting experiment sets international duration milestone for magnetic confinement.
By Kenji Sato — Tokyo Science Correspondent 2026-10-30 • 1 min read

NAKA, JAPAN — Physicists at the JT-60SA tokamak facility maintained steady-state magnetic confinement for 1,000 continuous seconds Friday, setting an operational stability record for superconducting fusion experiments.

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:

jaea.go.jp • Tier 1 (PRIMARY DOCUMENT)
Japan Atomic Energy Agency Technical Bulletin No. 412

“Continuous high-confinement mode maintained with zero thermal runaway across divertor plates.”

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