Runaway beam studies during disruptions at JET-ILW

Autor: Bazylev, B., Belonohy, E., Brezinsek, S., Decker, J., Devaux, Stéphane, Vries, P., Fil, Alexandre, Gerasimov, S., Lupelli, Ivan, Jachmich, S., Khilkevitch, E. M., Kiptily, V., Koslowski, R., Kruezi, U., Lehnen, M., Manzanares, A., Mlynar, J., Nardon, Eric, Nilsson, E., Riccardo, V., St-Laurent, F., Shevelev, A. E., Sozzi, C., Contributors, JET EFDA, Reux, C., Plyusnin, V., Alper, B., Alves, D.
Přispěvatelé: Institut für Hochleistungsimpuls - und Mikrowellentechnik [Karlsruhe], Karlsruhe Institute of Technology (KIT), European Fusion Development Agreement [Garching bei München] ( EFDA-CSU), Institute of Energy and Climate Research - Plasma Physics (IEK-4), Forschungszentrum Jülich GmbH | Centre de recherche de Juliers, Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association, Institut de Recherche sur la Fusion par confinement Magnétique (IRFM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), EURATOM/CCFE Fusion Association, Culham Science Centre [Abingdon], ITER organization (ITER), Euratom-Belgian State Association, A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences [Moscow] (RAS), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Institute of Plasma Physics, Association Euratom/IPP.CR (IPP PRAGUE), Czech Academy of Sciences [Prague] (CAS), Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, Consiglio Nazionale delle Ricerche [Roma] (CNR), Joint European Torus (JET-EFDA), Instituto de Plasmas e Fusão Nuclear [Lisboa] (IPFN), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Journal of Nuclear Materials
Journal of Nuclear Materials, Elsevier, 2015, 463, pp.143-149. ⟨10.1016/j.jnucmat.2014.10.002⟩
Journal of Nuclear Materials, 2015, 463, pp.143-149. ⟨10.1016/j.jnucmat.2014.10.002⟩
Journal of nuclear materials 463 (2015): 143–149. doi:10.1016/j.jnucmat.2014.10.002
info:cnr-pdr/source/autori:Reux, C.; Plyusnin, V.; Alper, B.; Alves, D.; Bazylev, B.; Belonohy, E.; Brezinsek, S.; Decker, J.; Devaux, S.; de Vries, P.; Fil, A.; Gerasimov, S.; Lupelli, I.; Jachmich, S.; Khilkevitch, E. M.; Kiptily, V.; Koslowski, R.; Kruezi, U.; Lehnen, M.; Manzanares, A.; Mlynar, J.; Nardon, E.; Nilsson, E.; Riccardo, V.; St-Laurent, F.; Shevelev, A. E.; Sozzi, C./titolo:Runaway beam studies during disruptions at JET-ILW/doi:10.1016%2Fj.jnucmat.2014.10.002/rivista:Journal of nuclear materials/anno:2015/pagina_da:143/pagina_a:149/intervallo_pagine:143–149/volume:463
ISSN: 0022-3115
DOI: 10.1016/j.jnucmat.2014.10.002⟩
Popis: Équipe 107 : Physique des plasmas chauds; International audience; Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges. Entry points into the RE domain defined by operational parameters (toroidal field, argon fraction in MGI) are unchanged but higher RE currents have been obtained inside the JET-ILW MGI-generated RE domain when compared to JET-C. This might be due to the influence of the metallic wall on the current quench plasma. Temperatures of 900 degrees C have been observed following RE impacts on beryllium tiles. Heat deposition depth of similar to 2 mm has to be assumed to match the tile cooling time. 3D simulations of the RE energy deposition using the ENDEP/MEMOS codes show that material melting is unlikely with 100 kA RE beams.
Databáze: OpenAIRE
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