{"paper":{"title":"Impact of nitrogen seeding on confinement and power load control of a high-triangularity JET ELMy H-mode plasma with a metal wall","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A C C Sips, A Huber, A Meigs, A Sirinnelli, B Sieglin, C Giroud, C Lowry, D Douai, E Joffrin, F Rimini, G Arnoux, G P Maddison, G van Rooij, I Balboa, I Coffey, I Nunes, JET-EFDA Contributors, J Flanagan, J W Coenen, K Lawson, K McCormick K, L Frassinetti, M Brix, M Clever, M Kempenaars, M Lehnen, M N A Beurskens, M Oberkofler, M Stamp, P Belo, P Lomas, R Coelho, R Neu, S Brezinsek, S Devaux, S Grunhagen, S Jachmich, S Marsen, S Wiesen, T Eich, U Kruezi, Y Liu","submitted_at":"2013-10-31T09:43:43Z","abstract_excerpt":"This paper reports the impact on confinement and power load of the high-shape 2.5MA ELMy H-mode scenario at JET of a change from an all carbon plasma facing components to an all metal wall. In preparation to this change, systematic studies of power load reduction and impact on confinement as a result of fuelling in combination with nitrogen seeding were carried out in JET-C and are compared to their counterpart in JET with a metallic wall. An unexpected and significant change is reported on the decrease of the pedestal confinement but is partially recovered with the injection of nitrogen."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8433","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}