Scenario development for the observation of alpha-driven instabilities in JET DT plasmas

JET Contributors

doi:10.1088/1741-4326/aab1bb

Scenario development for the observation of alpha-driven instabilities in JET DT plasmas

JET Contributors

Culham Science Centre
Jülich Research Centre
Institute for Plasma Research
University of Lisbon
United Kingdom Atomic Energy Authority
Queen's University Belfast
University of Helsinki
Commissariat à l’énergie atomique et aux énergies alternatives
VTT Technical Research Centre of Finland Ltd.
National Institutes for Quantum Science and Technology
University of Naples Federico II
National Distance Education University
National Research Council of Italy
ITER
Russian Research Centre Kurchatov Institute
University of Naples Parthenope
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
Troitsk Institute for Innovation and Fusion Research
Uppsala University
The National Institute for Cryogenics and Isotopic Technology
Max Planck Institute for Plasma Physics
University of Catania
Fusion for Energy
Toki
Massachusetts Institute of Technology
Aalto University
Imperial College London
CIEMAT
University of Oxford
EUROfusion Programme Management Unit
Oak Ridge National Laboratory
Karlsruhe Institute of Technology
University of York
KTH Royal Institute of Technology
Maritime University Of Szczecin
Institute of Nuclear Physics Polish Academy of Sciences
Czech Academy of Sciences
University of Trento
Swiss Federal Institute of Technology Lausanne
Wigner Research Centre for Physics
Comenius University
Lviv Polytechnic National University
University of Milan - Bicocca
The National Institute for Optoelectronics
Fourth State Research
University of Texas at Austin
Belgian Nuclear Research Center
National Centre for Nuclear Research
Princeton Plasma Physics Laboratory
Aix-Marseille University
University of Cagliari
University of Warwick
Andrzej Soltan Institute for Nuclear Studies
Dutch Institute for Fundamental Energy Research
National Institute for Laser, Plasma and Radiation Physics
Ghent University
Jožef Stefan Institute
Université de Lorraine
CAS - Institute of Plasma Physics
University of California at San Diego
Royal Military Academy
Horia Hulubei National Institute of Physics and Nuclear Engineering
Chalmers University of Technology
European Commission
Technical University of Madrid
University of Campania Luigi Vanvitelli
Warsaw University of Technology
University of Basilicata
Barcelona Supercomputing Center (BSC)
Aix-Marseille Université
University of Seville
Centro Brasileiro de Pesquisas Físicas
University of Rome Tor Vergata
Ioffe Physico-Technical Institute
General Atomics
University of Innsbruck
University of Toyama
University of Strathclyde
National Technical University of Athens
Tuscia University
Technical University of Denmark
Korea Advanced Institute of Science and Technology
Seoul National University
University College Cork
TU Wien
University of Opole
Daegu University
University of Latvia
National Fusion Research Institute
Dublin City University
PELIN LLC
Arizona State University
Complutense University
University of Basel
Universidad Carlos III de Madrid
Consorzio CREATE
Demokritos National Centre for Scientific Research
Purdue University
ULB-Campus Plaine
University of California
Universidade de São Paulo
Lithuanian Energy Institute
HRS Fusion
Polytechnic University of Turin
University of Cassino and Southern Lazio
University of Electronic Science and Technology of China

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

In DT plasmas, toroidal Alfvén eigenmodes (TAEs) can be made unstable by the alpha particles resulting from fusion reactions, and may induce a significant redistribution of fast ions. Recent experiments have been conducted in JET deuterium plasmas in order to prepare scenarios aimed at observing alpha-driven TAEs in a future JET DT campaign. Discharges at low density, large core temperatures associated with the presence of internal transport barriers and characterised by good energetic ion confinement have been performed. ICRH has been used in the hydrogen minority heating regime to probe the TAE stability. The consequent presence of MeV ions has resulted in the observation of TAEs in many instances. The impact of several key parameters on TAE stability could therefore be studied experimentally. Modeling taking into account NBI and ICRH fast ions shows good agreement with the measured neutron rates, and has allowed predictions for DT plasmas to be performed.

Original language	English
Article number	082005
Journal	Nuclear Fusion
Volume	58
Issue number	8
DOIs	https://doi.org/10.1088/1741-4326/aab1bb
Publication status	Published - 29 Jun 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DT plasmas
JET
TAEs
alphas
instabilities
scenario

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10.1088/1741-4326/aab1bb

Cite this

@article{878f993508d34f9aa56dc91e731f03ef,

title = "Scenario development for the observation of alpha-driven instabilities in JET DT plasmas",

abstract = "In DT plasmas, toroidal Alfv{\'e}n eigenmodes (TAEs) can be made unstable by the alpha particles resulting from fusion reactions, and may induce a significant redistribution of fast ions. Recent experiments have been conducted in JET deuterium plasmas in order to prepare scenarios aimed at observing alpha-driven TAEs in a future JET DT campaign. Discharges at low density, large core temperatures associated with the presence of internal transport barriers and characterised by good energetic ion confinement have been performed. ICRH has been used in the hydrogen minority heating regime to probe the TAE stability. The consequent presence of MeV ions has resulted in the observation of TAEs in many instances. The impact of several key parameters on TAE stability could therefore be studied experimentally. Modeling taking into account NBI and ICRH fast ions shows good agreement with the measured neutron rates, and has allowed predictions for DT plasmas to be performed.",

keywords = "DT plasmas, JET, TAEs, alphas, instabilities, scenario",

author = "\{JET Contributors\} and X. Litaudon and S. Abduallev and M. Abhangi and P. Abreu and M. Afzal and Aggarwal, \{K. M.\} and T. Ahlgren and Ahn, \{J. H.\} and L. Aho-Mantila and N. Aiba and M. Airila and R. Albanese and V. Aldred and D. Alegre and E. Alessi and P. Aleynikov and A. Alfier and A. Alkseev and M. Allinson and B. Alper and E. Alves and G. Ambrosino and R. Ambrosino and L. Amicucci and V. Amosov and Sund{\'e}n, \{E. Andersson\} and M. Angelone and M. Anghel and C. Angioni and L. Appel and C. Appelbee and P. Arena and M. Ariola and H. Arnichand and S. Arshad and A. Ash and N. Ashikawa and V. Aslanyan and O. Asunta and F. Auriemma and Y. Austin and L. Avotina and Axton, \{M. D.\} and D. Conka and M. Halitovs and J. Jansons and G. Kizane and E. Pajuste and A. Vitins and A. Zarins",

note = "Publisher Copyright: {\textcopyright} EURATOM 2018.",

year = "2018",

month = jun,

day = "29",

doi = "10.1088/1741-4326/aab1bb",

language = "English",

volume = "58",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "8",

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TY - JOUR

T1 - Scenario development for the observation of alpha-driven instabilities in JET DT plasmas

AU - JET Contributors

AU - Litaudon, X.

AU - Abduallev, S.

AU - Abhangi, M.

AU - Abreu, P.

AU - Afzal, M.

AU - Aggarwal, K. M.

AU - Ahlgren, T.

AU - Ahn, J. H.

AU - Aho-Mantila, L.

AU - Aiba, N.

AU - Airila, M.

AU - Albanese, R.

AU - Aldred, V.

AU - Alegre, D.

AU - Alessi, E.

AU - Aleynikov, P.

AU - Alfier, A.

AU - Alkseev, A.

AU - Allinson, M.

AU - Alper, B.

AU - Alves, E.

AU - Ambrosino, G.

AU - Ambrosino, R.

AU - Amicucci, L.

AU - Amosov, V.

AU - Sundén, E. Andersson

AU - Angelone, M.

AU - Anghel, M.

AU - Angioni, C.

AU - Appel, L.

AU - Appelbee, C.

AU - Arena, P.

AU - Ariola, M.

AU - Arnichand, H.

AU - Arshad, S.

AU - Ash, A.

AU - Ashikawa, N.

AU - Aslanyan, V.

AU - Asunta, O.

AU - Auriemma, F.

AU - Austin, Y.

AU - Avotina, L.

AU - Axton, M. D.

AU - Conka, D.

AU - Halitovs, M.

AU - Jansons, J.

AU - Kizane, G.

AU - Pajuste, E.

AU - Vitins, A.

AU - Zarins, A.

PY - 2018/6/29

Y1 - 2018/6/29

N2 - In DT plasmas, toroidal Alfvén eigenmodes (TAEs) can be made unstable by the alpha particles resulting from fusion reactions, and may induce a significant redistribution of fast ions. Recent experiments have been conducted in JET deuterium plasmas in order to prepare scenarios aimed at observing alpha-driven TAEs in a future JET DT campaign. Discharges at low density, large core temperatures associated with the presence of internal transport barriers and characterised by good energetic ion confinement have been performed. ICRH has been used in the hydrogen minority heating regime to probe the TAE stability. The consequent presence of MeV ions has resulted in the observation of TAEs in many instances. The impact of several key parameters on TAE stability could therefore be studied experimentally. Modeling taking into account NBI and ICRH fast ions shows good agreement with the measured neutron rates, and has allowed predictions for DT plasmas to be performed.

AB - In DT plasmas, toroidal Alfvén eigenmodes (TAEs) can be made unstable by the alpha particles resulting from fusion reactions, and may induce a significant redistribution of fast ions. Recent experiments have been conducted in JET deuterium plasmas in order to prepare scenarios aimed at observing alpha-driven TAEs in a future JET DT campaign. Discharges at low density, large core temperatures associated with the presence of internal transport barriers and characterised by good energetic ion confinement have been performed. ICRH has been used in the hydrogen minority heating regime to probe the TAE stability. The consequent presence of MeV ions has resulted in the observation of TAEs in many instances. The impact of several key parameters on TAE stability could therefore be studied experimentally. Modeling taking into account NBI and ICRH fast ions shows good agreement with the measured neutron rates, and has allowed predictions for DT plasmas to be performed.

KW - DT plasmas

KW - JET

KW - TAEs

KW - alphas

KW - instabilities

KW - scenario

UR - https://www.scopus.com/pages/publications/85050403274

U2 - 10.1088/1741-4326/aab1bb

DO - 10.1088/1741-4326/aab1bb

M3 - Article

AN - SCOPUS:85050403274

SN - 0029-5515

VL - 58

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - 082005

ER -

Scenario development for the observation of alpha-driven instabilities in JET DT plasmas

Abstract

UN SDGs

Keywords

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