Equilibrium reconstruction at JET using Stokes model for polarimetry

JET Contributors

doi:10.1088/1741-4326/aad751

Equilibrium reconstruction at JET using Stokes model for polarimetry

JET Contributors

Université Côte D’Azur
University of Naples Federico II
Culham Science Centre
Research Centre Julich
Institute for Plasma Research
Instituto Superior Técnico
Culham Centre for Fusion Energy
Queen's University of Belfast
University of Helsinki
CEA Cadarache
VTT Technical Research Centre of Finland Ltd
National Institutes for Quantum and Radiological Science and Technology
Universidad Nacional de Educación a Distancia
IFP-CNR
ITER
Consorzio Rfx
Kurchatov Institute
Università di Napoli Parthenope
ENEA Centro Ricerche Frascati
Troitsk Insitute of Innovating and Thermonuclear Research (TRINITI)
Uppsala University
National Institute for Cryogenics and Isotopic Technology
Max-Planck-Institut für Plasmaphysik
Università degli Studi di Catania
Fusion for Energy
National Institute for Fusion Science
Massachusetts Institute of Technology
Aalto University
University of Latvia (LU)
Imperial College London
Laboratorio Nacional de Fusión
ENAC-IIC-GEL
University of Oxford
EUROfusion Programme Management Unit
Oak Ridge National Laboratory
Institute of Meteorology and Climate Research
University of York
KTH Royal Institute of Technology
Maritime University of Szczecin
Institute for Nuclear Physics
Institute of Plasma Physics AS CR
Università di Trento
Wigner Research Centre for Physics
Comenius University
Lviv Polytechnic National University
University of Milano-Bicocca
National Institute for Optoelectronics
Fourth State Research
Nuclear Research Centre
National Centre for Nuclear Research
Princeton Plasma Physics Laboratory
Aix-Marseille Université
Universitá di Cagliari
University of Warwick
Soltan Institute for Nuclear Studies
FOM Institute DIFFER 'Dutch Institute for Fundamental Energy Research'
Plasma and Radiation Physics (INFLPR)
Ghent University
Department of Biochemistry and Molecular and Structural Biology
Nancy Université
Institute of Plasma Physics, Chinese Academy of Sciences
Center for Energy Research
Koninklijke Militaire School - Ecole Royale Militaire
Horia Hulubei National Institute of Physics and Nuclear Engineering
Chalmers University of Technology
European Commission
Universidad Politécnica de Madrid
University of Campania L. Vanvitelli
Warsaw University of Technology
Università degli Studi della Basilicata
Earth Sciences
Aix Marseille Université
University of Seville
Centro Brasileiro de Pesquisas Fisicas
IUSTI
University of Rome “Tor Vergata”
Ioffe 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
Vienna University of Technology
Opole University
Daegu University
National Fusion Research Institute
Dublin City University
PELIN LLC
Arizona State University
Complutense University
University of Basel
Universidad Carlos III de Madrid
NCSR Demokritos
Purdue University
Fluid and Plasma Dynamics
University of California
University of São Paulo
Lithuanian Energy Institute
HRS Fusion
Politecnico di Torino
Università di Cassino
Medical School of UESTC

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

Abstract

This paper presents the first application to real JET data of the new equilibrium code NICE which enables the consistent resolution of the inverse equilibrium reconstruction problem in the framework of non-linear free-boundary equilibrium coupled to the Stokes model equation for polarimetry. The conducted numerical experiments enable first of all to validate NICE by comparing it to the well-established EFIT code on 4 selected high performance shots. Secondly the results indicate that the fit to polarimetry measurements clearly benefits from the use of Stokes vector measurements compared to the classical case of Faraday measurements, and that the reconstructed p′ and ff ′ profiles are better constrained with smaller error bars and are closer to the profiles reconstructed by EFTM, the EFIT JET code using internal MSE constraints.

Original language	English
Article number	106032
Journal	Nuclear Fusion
Volume	58
Issue number	10
DOIs	https://doi.org/10.1088/1741-4326/aad751
Publication status	Published - 30 Aug 2018
Externally published	Yes

Keywords

JET
Stokes model
equilibrium reconstruction
polarimetry

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10.1088/1741-4326/aad751

Cite this

@article{29c58298ee974554b5a701fe1aadc065,

title = "Equilibrium reconstruction at JET using Stokes model for polarimetry",

abstract = "This paper presents the first application to real JET data of the new equilibrium code NICE which enables the consistent resolution of the inverse equilibrium reconstruction problem in the framework of non-linear free-boundary equilibrium coupled to the Stokes model equation for polarimetry. The conducted numerical experiments enable first of all to validate NICE by comparing it to the well-established EFIT code on 4 selected high performance shots. Secondly the results indicate that the fit to polarimetry measurements clearly benefits from the use of Stokes vector measurements compared to the classical case of Faraday measurements, and that the reconstructed p′ and ff ′ profiles are better constrained with smaller error bars and are closer to the profiles reconstructed by EFTM, the EFIT JET code using internal MSE constraints.",

keywords = "JET, Stokes model, equilibrium reconstruction, polarimetry",

author = "\{JET Contributors\} and Blaise Faugeras and Francesco Orsitto 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 C. Ayres and M. Bacharis and A. Baciero and D. Bai{\~a}o and T. Nicolas",

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

year = "2018",

month = aug,

day = "30",

doi = "10.1088/1741-4326/aad751",

language = "English",

volume = "58",

journal = "Nuclear Fusion",

issn = "0029-5515",

number = "10",

}

TY - JOUR

T1 - Equilibrium reconstruction at JET using Stokes model for polarimetry

AU - JET Contributors

AU - Faugeras, Blaise

AU - Orsitto, Francesco

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 - Ayres, C.

AU - Bacharis, M.

AU - Baciero, A.

AU - Baião, D.

AU - Nicolas, T.

PY - 2018/8/30

Y1 - 2018/8/30

N2 - This paper presents the first application to real JET data of the new equilibrium code NICE which enables the consistent resolution of the inverse equilibrium reconstruction problem in the framework of non-linear free-boundary equilibrium coupled to the Stokes model equation for polarimetry. The conducted numerical experiments enable first of all to validate NICE by comparing it to the well-established EFIT code on 4 selected high performance shots. Secondly the results indicate that the fit to polarimetry measurements clearly benefits from the use of Stokes vector measurements compared to the classical case of Faraday measurements, and that the reconstructed p′ and ff ′ profiles are better constrained with smaller error bars and are closer to the profiles reconstructed by EFTM, the EFIT JET code using internal MSE constraints.

AB - This paper presents the first application to real JET data of the new equilibrium code NICE which enables the consistent resolution of the inverse equilibrium reconstruction problem in the framework of non-linear free-boundary equilibrium coupled to the Stokes model equation for polarimetry. The conducted numerical experiments enable first of all to validate NICE by comparing it to the well-established EFIT code on 4 selected high performance shots. Secondly the results indicate that the fit to polarimetry measurements clearly benefits from the use of Stokes vector measurements compared to the classical case of Faraday measurements, and that the reconstructed p′ and ff ′ profiles are better constrained with smaller error bars and are closer to the profiles reconstructed by EFTM, the EFIT JET code using internal MSE constraints.

KW - JET

KW - Stokes model

KW - equilibrium reconstruction

KW - polarimetry

UR - https://www.scopus.com/pages/publications/85053426621

U2 - 10.1088/1741-4326/aad751

DO - 10.1088/1741-4326/aad751

M3 - Article

AN - SCOPUS:85053426621

SN - 0029-5515

VL - 58

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 10

M1 - 106032

ER -

Equilibrium reconstruction at JET using Stokes model for polarimetry

Abstract

Keywords

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