{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"7e71a5a26e7901a8ad668722975f246707471add1eb39c8d1d1204d1fcf700c3","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b","ef26d040622b8f9e474af9e736f2780e6fb3149ff90fd734916455f0a4ed27f0"],"salt":"a3bc169540b77e47d35bd1cb1acf733dba4285636ac7bdd166e349d418fda3a5","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"plasma.edge-pedestal-elms.rmp-elm-iter","kind":"well-posed","literature_status":"open","n":"2","parents":[],"plain":"ELMs would erode ITER's wall too fast if left alone. Small helical magnetic perturbations from extra coils can suppress them in present tokamaks, but only in narrow conditions.","posed_since":"","precise":"Resonant magnetic perturbations (RMPs, applied nonaxisymmetric fields with toroidal mode number $n=1\\ \\text{to}\\ 4$) suppress type-I ELMs in DIII-D, KSTAR, EAST and ASDEX Upgrade in narrow windows of edge safety factor $q_{95}$ and at low pedestal collisionality, apparently when the field penetrates as an island near the pedestal top. Determine, with validated two-fluid nonlinear MHD, whether the ITER coil set achieves penetration and suppression in the $Q=10$ baseline at ITER pedestal collisionality and rotation. An answer is yes or no with predicted $q_{95}$ windows and required coil current.","problem_ref":"ef26d040622b8f9e474af9e736f2780e6fb3149ff90fd734916455f0a4ed27f0","references":"","settled_by":"A validated penetration-threshold model applied to ITER, then ITER high-performance operation.","status_note":"","title":"Will resonant magnetic perturbations suppress ELMs in ITER?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"45dc4080ba99a5915abb5de62dc3d003b74ba15e9c03b067968a245e767ac27e","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"e57fad4396c2a403f54487247cefd9f188ac6b77bd8a90528914ca876ec3a784","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"UJSyPqrY4vUihK5yxvREoEhX6f_3qsl8ZIT1hCWmSacEpM8EuUd75lMzMCitDsITnMyp837debzbn7VJvvO_DA"},"schema":"pubphys.envelope/1"},"record_hash":"45dc4080ba99a5915abb5de62dc3d003b74ba15e9c03b067968a245e767ac27e","leaf_index":3568}