{"slug":"magnetic-fusion","topic":"magnetic-fusion","title":"Magnetic Confinement Fusion: State of the Field (October 2026)","summary":"Tokamaks and stellarators are the main routes to fusion power based on magnetic confinement. This dossier reviews confinement regimes, edge and disruption control, stellarator optimization, plasma-facing materials, machine-learning control and results from long-pulse, high-density and deuterium-tritium experiments through 2025, with 2026 preprints flagged. The central takeaway is that key capabilities have been shown in separate devices, while integrated burning-plasma performance remains a future goal.","version":1,"published_at":"2026-10-30","updated_at":"2026-10-30","stats":{"words":4416,"citations":65,"claims":28,"timeline":15,"benchmarks":12,"open_problems":9,"key_papers":13,"glossary":17},"verification":{"status":"verified","method":"automated figure and citation-relevance triage against cited abstracts, targeted AI review with web checks of flagged statements, and an editorial close-out; automated citation resolution","claims_checked":28,"issues_fixed":1,"verified_at":"2026-10-30","notes":["Coverage gap (not an error): EAST's January 2025 1,066-second H-mode discharge is not yet covered; the dossier does not present an older result as the current record."]},"ai_assisted":true,"price":{"usd":"0.20","protocol":"x402","network":"eip155:84532","asset":"USDC"},"url":"https://space-kitty.com/dossiers/magnetic-fusion","preview_url":"https://space-kitty.com/api/v1/dossiers/magnetic-fusion/preview","purchase_url":"https://space-kitty.com/api/v1/dossiers/magnetic-fusion","toc":[{"level":2,"text":"Executive summary","anchor":"executive-summary"},{"level":2,"text":"Background and core concepts","anchor":"background-and-core-concepts"},{"level":2,"text":"Timeline of key milestones","anchor":"timeline-of-key-milestones"},{"level":2,"text":"State of the art","anchor":"state-of-the-art"},{"level":3,"text":"Tokamak confinement, the L-H transition and advanced regimes","anchor":"tokamak-confinement-the-l-h-transition-and-advanced-regimes"},{"level":3,"text":"Edge control, ELMs and pellets","anchor":"edge-control-elms-and-pellets"},{"level":3,"text":"Disruptions, runaway electrons and mitigation","anchor":"disruptions-runaway-electrons-and-mitigation"},{"level":3,"text":"Stellarators and magnetic configuration design","anchor":"stellarators-and-magnetic-configuration-design"},{"level":3,"text":"Plasma-facing components and the fuel cycle","anchor":"plasma-facing-components-and-the-fuel-cycle"},{"level":3,"text":"Machine learning, surrogates and control","anchor":"machine-learning-surrogates-and-control"},{"level":3,"text":"Quantitative benchmarks","anchor":"quantitative-benchmarks"},{"level":2,"text":"Open problems and active debates","anchor":"open-problems-and-active-debates"},{"level":2,"text":"Major programs and players","anchor":"major-programs-and-players"},{"level":2,"text":"Outlook: what to watch (near term)","anchor":"outlook-what-to-watch-near-term"},{"level":2,"text":"Key papers","anchor":"key-papers"},{"level":2,"text":"Glossary","anchor":"glossary"}],"sample_claims":["Tokamaks and stellarators are the two leading magnetic-confinement concepts: tokamaks rely on a large plasma current, while stellarators use three-dimensional external coils and need no large current.","ITER's design goal is a fusion gain of about 10, corresponding to roughly 500 MW of fusion power."],"includes":["markdown","claims","timeline","benchmarks","open_problems","key_papers","glossary","bibliography"],"citation_count":65,"how_to_buy":"GET https://space-kitty.com/api/v1/dossiers/magnetic-fusion with an x402 client ($0.20, USDC on Base Sepolia (testnet))."}