{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"3c7093f98af08589a16e73646315833da76751af7138f03c52c5cd576445f69e","created":"2026-10-03T07:17:52Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"6b5c2ffcda961613ce6df25e61b290e6a4fafe6ed8d8489ad48c4dbcc7154f0d","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"plasma.disruptions","field":"plasma","n":"1","review_cite":"S. Ratynskaia, M. Hoelzl, E. Nardon, P. Aleynikov et al., Runaway electron-induced plasma facing component damage in tokamaks, arXiv:2506.10411, 2025","review_link":"https://arxiv.org/abs/2506.10411","review_verified":"true","summary":"A tokamak plasma can lose its heat and electric current in a few thousandths of a second, an event called a disruption. The collapse induces a strong electric field that can accelerate electrons to nearly light speed, and a beam of these runaway electrons can melt the wall.","title":"Tokamak disruptions and runaway electrons","topic_ref":null,"why":"Unmitigated disruptions in ITER-scale devices can damage the machine, so tokamak reactors are viable only if disruptions are avoided or made harmless."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"ea2728865d1aa024b91c5a88f675b822fd929225af4da0f04e206330d21409ab","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"4e0a88d898f4aa5158a87016af97609fc42a0ddf47e28f612158529f009fd60d","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"iE8p5XnuAfjUIJ-EVrdMRduZBtfUibi47OKGddlOOJVJyYRJ5jTswi-GBQ-WHRnCzWchmbxAcrHruWj0JdepBQ"},"schema":"pubphys.envelope/1"},"record_hash":"ea2728865d1aa024b91c5a88f675b822fd929225af4da0f04e206330d21409ab","leaf_index":298}