Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall

Ongena, J.; Kazakov, Ye O.; Baranov, Y.; Hellesen, C.; Eriksson, J.; Johnson, T.; Kiptily, V.G.; Mantsinen, Mervi J.; Nocente, M.; Bilato, R.; Cardinali, A.; Castaldo, C.; Crombé, K.; Czarnecka, A.; Dumont, R.; Faustin, J.; Giacomelli, L.; Goloborodko, V.; Graves, J.; Jacquet, Ph.; Krawczyk, N.; Lerche, E.; Meneses, L.; Nave, M.F.F.; Patten, H.; Schneider, M.; Van Eester, D.; Weisen, H.; Wright, J.C.; JET Contributors

Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall

This paper discusses the extension of the ‘three-ion’ species ICRF technique for heating mixture plasmas using fast injected NBI ions as resonant ‘third’ species. In this scenario the ICRF power is absorbed by the fast beam ions in the vicinity of the mode conversion layer where the left-hand polari...

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Autores:	Ongena, J., Kazakov, Ye O., Baranov, Y., Hellesen, C., Eriksson, J., Johnson, T., Kiptily, V.G., Mantsinen, Mervi J., Nocente, M., Bilato, R., Cardinali, A., Castaldo, C., Crombé, K., Czarnecka, A., Dumont, R., Faustin, J., Giacomelli, L., Goloborodko, V., Graves, J., Jacquet, Ph., Krawczyk, N., Lerche, E., Meneses, L., Nave, M.F.F., Patten, H., Schneider, M., Van Eester, D., Weisen, H., Wright, J.C., JET Contributors
Tipo de recurso:	artículo
Fecha de publicación:	2017
País:	España
Institución:	Universitat Politècnica de Catalunya (UPC)
Repositorio:	UPCommons. Portal del coneixement obert de la UPC
Idioma:	inglés
OAI Identifier:	oai:upcommons.upc.edu:2117/109708
Acceso en línea:	https://hdl.handle.net/2117/109708 https://dx.doi.org/10.1051/epjconf/201715702006
Access Level:	acceso abierto
Palabra clave:	Plasma heating Ion cyclotron range of frequencies Fusion research Tècniques de plasma Àrees temàtiques de la UPC::Física

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spelling	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wallOngena, J.Kazakov, Ye O.Baranov, Y.Hellesen, C.Eriksson, J.Johnson, T.Kiptily, V.G.Mantsinen, Mervi J.Nocente, M.Bilato, R.Cardinali, A.Castaldo, C.Crombé, K.Czarnecka, A.Dumont, R.Faustin, J.Giacomelli, L.Goloborodko, V.Graves, J.Jacquet, Ph.Krawczyk, N.Lerche, E.Meneses, L.Nave, M.F.F.Patten, H.Schneider, M.Van Eester, D.Weisen, H.Wright, J.C.JET ContributorsPlasma heatingPlasma heatingIon cyclotron range of frequenciesFusion researchTècniques de plasmaÀrees temàtiques de la UPC::FísicaThis paper discusses the extension of the ‘three-ion’ species ICRF technique for heating mixture plasmas using fast injected NBI ions as resonant ‘third’ species. In this scenario the ICRF power is absorbed by the fast beam ions in the vicinity of the mode conversion layer where the left-hand polarized RF electric field E+ is strongly enhanced. The ions in the beam velocity distribution that have a Doppler-shifted resonance close to the mode conversion layer efficiently absorb RF power and undergo acceleration. We show first experimental observations of ICRF heating of D-NBI ions in H-D plasmas in JET with the ITER-like wall. In agreement with theoretical predictions and numerical modelling, acceleration of the D-NBI ions in this D-(DNBI)-H scenario is confirmed by several fast-ion measurements. An extension of the heating scheme discussed here is acceleration of T-NBI and D-NBI ions in D-T plasmas, offering the potential to further boost the Q-value in future D-T campaigns in JET.The support from the JET team is warmly acknowledged. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission and the ITER Organization.Peer ReviewedEDP Sciences: EPJ Open Access20172017-10-2320172017-11-03journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/109708https://dx.doi.org/10.1051/epjconf/201715702006reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengEuropean Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 633053 Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortiumopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1097082026-05-27T15:37:01Z
dc.title.none.fl_str_mv	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
title	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
spellingShingle	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall Ongena, J. Plasma heating Plasma heating Ion cyclotron range of frequencies Fusion research Tècniques de plasma Àrees temàtiques de la UPC::Física
title_short	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
title_full	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
title_fullStr	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
title_full_unstemmed	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
title_sort	Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall
dc.creator.none.fl_str_mv	Ongena, J. Kazakov, Ye O. Baranov, Y. Hellesen, C. Eriksson, J. Johnson, T. Kiptily, V.G. Mantsinen, Mervi J. Nocente, M. Bilato, R. Cardinali, A. Castaldo, C. Crombé, K. Czarnecka, A. Dumont, R. Faustin, J. Giacomelli, L. Goloborodko, V. Graves, J. Jacquet, Ph. Krawczyk, N. Lerche, E. Meneses, L. Nave, M.F.F. Patten, H. Schneider, M. Van Eester, D. Weisen, H. Wright, J.C. JET Contributors
author	Ongena, J.
author_facet	Ongena, J. Kazakov, Ye O. Baranov, Y. Hellesen, C. Eriksson, J. Johnson, T. Kiptily, V.G. Mantsinen, Mervi J. Nocente, M. Bilato, R. Cardinali, A. Castaldo, C. Crombé, K. Czarnecka, A. Dumont, R. Faustin, J. Giacomelli, L. Goloborodko, V. Graves, J. Jacquet, Ph. Krawczyk, N. Lerche, E. Meneses, L. Nave, M.F.F. Patten, H. Schneider, M. Van Eester, D. Weisen, H. Wright, J.C. JET Contributors
author_role	author
author2	Kazakov, Ye O. Baranov, Y. Hellesen, C. Eriksson, J. Johnson, T. Kiptily, V.G. Mantsinen, Mervi J. Nocente, M. Bilato, R. Cardinali, A. Castaldo, C. Crombé, K. Czarnecka, A. Dumont, R. Faustin, J. Giacomelli, L. Goloborodko, V. Graves, J. Jacquet, Ph. Krawczyk, N. Lerche, E. Meneses, L. Nave, M.F.F. Patten, H. Schneider, M. Van Eester, D. Weisen, H. Wright, J.C. JET Contributors
author2_role	author author author author author author author author author author author author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Plasma heating Plasma heating Ion cyclotron range of frequencies Fusion research Tècniques de plasma Àrees temàtiques de la UPC::Física
topic	Plasma heating Plasma heating Ion cyclotron range of frequencies Fusion research Tècniques de plasma Àrees temàtiques de la UPC::Física
description	This paper discusses the extension of the ‘three-ion’ species ICRF technique for heating mixture plasmas using fast injected NBI ions as resonant ‘third’ species. In this scenario the ICRF power is absorbed by the fast beam ions in the vicinity of the mode conversion layer where the left-hand polarized RF electric field E+ is strongly enhanced. The ions in the beam velocity distribution that have a Doppler-shifted resonance close to the mode conversion layer efficiently absorb RF power and undergo acceleration. We show first experimental observations of ICRF heating of D-NBI ions in H-D plasmas in JET with the ITER-like wall. In agreement with theoretical predictions and numerical modelling, acceleration of the D-NBI ions in this D-(DNBI)-H scenario is confirmed by several fast-ion measurements. An extension of the heating scheme discussed here is acceleration of T-NBI and D-NBI ions in D-T plasmas, offering the potential to further boost the Q-value in future D-T campaigns in JET.
publishDate	2017
dc.date.none.fl_str_mv	2017 2017-10-23 2017 2017-11-03
dc.type.none.fl_str_mv	journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv	info:eu-repo/semantics/article
format	article
dc.identifier.none.fl_str_mv	https://hdl.handle.net/2117/109708 https://dx.doi.org/10.1051/epjconf/201715702006
url	https://hdl.handle.net/2117/109708 https://dx.doi.org/10.1051/epjconf/201715702006
dc.language.none.fl_str_mv	Inglés eng
language_invalid_str_mv	Inglés
language	eng
dc.relation.none.fl_str_mv	European Commission http://doi.org/10.13039/100010661 Horizon 2020 Framework Programme 633053 Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium
dc.rights.none.fl_str_mv	open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv	info:eu-repo/semantics/openAccess
rights_invalid_str_mv	open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	EDP Sciences: EPJ Open Access
publisher.none.fl_str_mv	EDP Sciences: EPJ Open Access
dc.source.none.fl_str_mv	reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC)
instname_str	Universitat Politècnica de Catalunya (UPC)
reponame_str	UPCommons. Portal del coneixement obert de la UPC
collection	UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
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Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall

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