Since 18 of December 2019 conferences.iaea.org uses Nucleus credentials. Visit our help pages for information on how to Register and Sign-in using Nucleus.
Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Parameters of Runaway Electrons in JET

Oct 16, 2014, 8:30 AM
4h
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 5

Speaker

Dr Vladislav V Plyusnin (Instituto de Plasmas e Fusão Nuclear, Associação EURATOM-IST, Instituto Superior Tecnico)

Description

The database on runaway electrons (RE) collected in JET with plasma facing components based on carbon-fibre composite tiles (JET-C) has been updated by recent results of experiments on disruptions and RE generation in JET with full-metal ITER-like wall (JET-ILW). Unlike the first operations of JET-ILW, which didn’t reveal the probability of runaway electron generation, new experiments with Massive Gas Injection (MGI) did. In these studies the runaway generation process has been mapped on following JET operation parameters - toroidal magnetic fields, pre-disruption plasma densities and on fractions of argon used at MGI in mixture with deuterium (10÷100%) - for future RE suppression experiments. New results on runaway generation trends and disruption physics have been obtained. A significant extension of runaway electron generation boundary to the lower magnetic fields (up to 1 T) was found. RE current (up to 150 kA) has been measured already at 1.2 T. Temporal and spatial dynamics of RE beams have been studied using measured hard and soft X-rays emissions during RE stage. Energy spectra of RE have been measured. Data is used to contribute into the enhancement of the model of RE generation in the presence of spatial dynamics of current carrying channel and to the analysis of the interaction of RE beams with plasma facing components. This work was supported by EURATOM and carried out within the framework of the European Fusion Development Agreement and of the Contract of Association between the EURATOM and Instituto Superior Tecnico and has also received financial support from Fundação para a Ciência e Tecnologia (FCT), Portugal. The views and opinions expressed herein do not necessarily reflect those of the European Commission or the ITER Organization.
Country or International Organisation Portugal
Paper Number EX/P5-23

Primary author

Dr Vladislav V Plyusnin (Instituto de Plasmas e Fusão Nuclear, Associação EURATOM-IST, Instituto Superior Tecnico)

Co-authors

Dr Alexander Huber (Institute for Energy Research - Plasma Physics, Forschungszentrum Juelich, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Juelich, Germany) Mr Alexander Shevelev (Ioffe Institute) Dr Alexandru Boboc (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Mrs Ana Fernandes (Associação EURATOM-IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal) Dr Ana Manzanares (Association Euratom-CIEMAT, Moncloa, Avd. Complutense, 22, 28040 Madrid 3, Spain) Dr Barry Alper (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Dr Carlo Sozzi (Istituto di Fisica del Plasma CNR-EURATOM, via Cozzi 53, 20125 Milano, Italy) Dr Cedric Reux (CEA, IRFM, F-13108 Saint Paul-lez-Durance, France.) Mr Diogo Alves (Associação EURATOM-IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal) Dr Elena de la Luna (JET/CSU) Mr Evgenii Khilkevitch (Ioffe Institute) Dr Francois SAINT-LAURENT (CEA) Dr Gennady Sergienko (Institute for Energy Research - Plasma Physics, Forschungszentrum Juelich, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Juelich, Germany) Mr Guy Matthews (Culham Centre for Fusion Energy) Dr Jan Mlynář (Association EURATOM/IPP.CR, IPP AS CR, CZ-18200 Prague, Czech Republic) Mr Luca Giacomelli (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Dr Mathias Brix (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Dr Michael Lehnen (ITER Organization) Dr Peter de Vries (ITER Organization) Dr Rita Pereira (Associação EURATOM-IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Tecnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal) Dr Sergei Gerasimov (CCFE) Mr Stefan Jachmich (Laboratoire de Physique des Plasmas-Laboratorium voor Plasmafysica, Association EURATOM-Belgian State, ERM/KMS, B-1000 Brussels, Belgium) Dr Uron Kruezi (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Dr Valeria Riccardo (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK) Dr Vasili Kiptily (Euratom/CCFE Association, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK)

Presentation materials