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.

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

doi:10.1051/epjconf/201715702006

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.

J. Ongena
, Ye O. Kazakov
, Y. Baranov
, C. Hellesen
, J. Eriksson
, T. Johnson
, V. G. Kiptily
, M. J. Mantsinen
, M. Nocente
, R. Bilato
, A. Cardinali
, C. Castaldo
, K. Crombé
, A. Czarnecka
, R. Dumont
, J. Faustin
, L. Giacomelli
, V. Goloborodko
, J. Graves
, Ph Jacquet

N. Krawczyk, E. Lerche, L. Meneses, M. F.F. Nave, H. Patten, M. Schneider, D. Van Eester, H. Weisen, J. C. Wright

Laboratory for Plasma Physics

EFDA-JET
Royal Military Academy of Belgium
Culham Centre for Fusion Energy
Uppsala Universitet
KTH Royal Institute of Technology
Barcelona Supercomputing Center
ICREA
University of Milano-Bicocca
CNR
Max Planck Institute for Plasma Physics
ENEA Centro Ricerche Frascati
University of Ghent
Institute of Plasma Physics and Laser Microfusion
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Institute for Nuclear Research
École Polytechnique Fédérale de Lausanne
Instituto Superior Técnico
ITER
MIT Plasma Science and Fusion Center

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28 Citaten (Scopus)

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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-(D_NBI)-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.

Originele taal-2	Engels
Artikelnummer	02006
Tijdschrift	EPJ Web of Conferences
Volume	157
DOI's	https://doi.org/10.1051/epjconf/201715702006
Status	Gepubliceerd - 23 okt. 2017
Evenement	22nd Topical Conference on Radio-Frequency Power in Plasmas 2017 - Aix en Provence, Frankrijk Duur: 30 mei 2017 → 2 jun. 2017

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Ongena, J., Kazakov, Y. O., Baranov, Y., Hellesen, C., Eriksson, J., Johnson, T., Kiptily, V. G., Mantsinen, M. J., Nocente, M., Bilato, R., Cardinali, A., Castaldo, C., Crombé, K., Czarnecka, A., Dumont, R., Faustin, J., Giacomelli, L., Goloborodko, V., Graves, J., ... Wright, J. C. (2017). 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. EPJ Web of Conferences, 157, Artikel 02006. https://doi.org/10.1051/epjconf/201715702006

@article{a6221bba000c4c0d8cb46c4fed35a094,

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.",

abstract = "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.",

author = "J. Ongena and Kazakov, \{Ye O.\} and Y. Baranov and C. Hellesen and J. Eriksson and T. Johnson and Kiptily, \{V. G.\} and Mantsinen, \{M. J.\} and M. Nocente and R. Bilato and A. Cardinali and C. Castaldo and K. Cromb{\'e} and A. Czarnecka and R. Dumont and J. Faustin and L. Giacomelli and V. Goloborodko and J. Graves and Ph Jacquet and N. Krawczyk and E. Lerche and L. Meneses and Nave, \{M. F.F.\} and H. Patten and M. Schneider and \{Van Eester\}, D. and H. Weisen and Wright, \{J. C.\}",

note = "Publisher Copyright: {\textcopyright} 2017 The authors, published by EDP Sciences.; 22nd Topical Conference on Radio-Frequency Power in Plasmas 2017 ; Conference date: 30-05-2017 Through 02-06-2017",

year = "2017",

month = oct,

day = "23",

doi = "10.1051/epjconf/201715702006",

language = "English",

volume = "157",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

}

Ongena, J , Kazakov, YO, Baranov, Y, Hellesen, C, Eriksson, J, Johnson, T, Kiptily, VG, Mantsinen, MJ, Nocente, M, Bilato, R, Cardinali, A, Castaldo, C, Crombé, K, Czarnecka, A, Dumont, R, Faustin, J, Giacomelli, L, Goloborodko, V, Graves, J, Jacquet, P, Krawczyk, N, Lerche, E, Meneses, L, Nave, MFF, Patten, H, Schneider, M, Van Eester, D, Weisen, H & Wright, JC 2017, '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.', EPJ Web of Conferences, vol. 157, 02006. https://doi.org/10.1051/epjconf/201715702006

TY - JOUR

T1 - 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.

AU - Ongena, J.

AU - Kazakov, Ye O.

AU - Baranov, Y.

AU - Hellesen, C.

AU - Eriksson, J.

AU - Johnson, T.

AU - Kiptily, V. G.

AU - Mantsinen, M. J.

AU - Nocente, M.

AU - Bilato, R.

AU - Cardinali, A.

AU - Castaldo, C.

AU - Crombé, K.

AU - Czarnecka, A.

AU - Dumont, R.

AU - Faustin, J.

AU - Giacomelli, L.

AU - Goloborodko, V.

AU - Graves, J.

AU - Jacquet, Ph

AU - Krawczyk, N.

AU - Lerche, E.

AU - Meneses, L.

AU - Nave, M. F.F.

AU - Patten, H.

AU - Schneider, M.

AU - Van Eester, D.

AU - Weisen, H.

AU - Wright, J. C.

PY - 2017/10/23

Y1 - 2017/10/23

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85032616487

U2 - 10.1051/epjconf/201715702006

DO - 10.1051/epjconf/201715702006

M3 - Conference article

AN - SCOPUS:85032616487

SN - 2101-6275

VL - 157

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 02006

T2 - 22nd Topical Conference on Radio-Frequency Power in Plasmas 2017

Y2 - 30 May 2017 through 2 June 2017

ER -

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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