Jakub Urban Some Introduction  over 9 years ago

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%!TEX root = JUrban_SOFT2014.tex  \section{Introduction} % (fold)  \label{sec:introduction}  This We report here on validation and verification of tokamak equilibrium tools used for the COMPASS tokamak. We particularly focus on fundamental global plasma parameters and the shapes of magnetic flux surfaces, which are crucial in diagnostics interpretation and other analyses.   EFIT++ \cite{efitpp2006}  is intro used for routine equilibrium reconstruction on COMPASS. FREEBIE \cite{freebie2012} is a recent free-boundary equilibrium code; FREEBIE enables predictive equilibrium calculation consistent with the poloidal field (PF) components of the tokamak. In this study, FREEBIE is used in the so-called inverse mode, which predicts PF coils currents from a give plasma boundary and profiles. The third code employed in this study is VacTH \cite{vacthref}, which provides a fast reconstruction of the plasma boundary from magnetic measurements using a toroidal harmonics basis.  In order to verify and validate the aforementioned tolls, we analyse EFIT++ and VacTH reconstructions of equilibria constructed with FREEBIE. Synthetic diagnostics (e.g., magnetic probes or flux loops) with optional artificial errors provide inputs for the reconstructions.  % section introduction (end)         

\author[label1]{J.~Urban}  \author[label2]{L.C.~Appel}  \author[label3]{J.F.~Artaud}   \author[label4]{B~Faugeras} \author[label4]{B.~Faugeras}  \author[label1,label5]{J.~Havlicek}  \author[label1]{M.~Komm}  \author[label2]{I.~Lupelli}            

%!TEX root = JUrban_SOFT2014.tex  \section{Verification and validation procedure} % (fold)  \label{sec:procedure}  % section procedure (end)         

month = {Feb},  pages = {960–980},  }  @article{  efitpp2006,  Author = {Appel, L.C. and Huysmans, G.T.A. and Lao, L.L. and McCarthy, P.J. and Muir, D.G. and Solano, E.R. and Storrs, J. and Taylor, D. and Zwingmann, W.},  Title = {A unified approach to equilibrium reconstruction},  Journal = {Europhysics Conference Abstracts},  Volume = {30I},  Pages = {P2.184},  Year = {2006} }  %% hal-00862399, version 2  %% http://hal.archives-ouvertes.fr/hal-00862399  @article{vacthref,  hal_id = {hal-00862399},  url = {http://hal.archives-ouvertes.fr/hal-00862399},  title = {{2D interpolation and extrapolation of discrete magnetic measurements with toroidal harmonics for equilibrium reconstruction in a Tokamak}},  author = {Faugeras, Blaise and Blum, Jacques and Boulbe, C{\'e}dric and Moreau, Philippe and Nardon, Eric},  abstract = {{We present a method based on the use of toroidal harmonics and on a modelization of the poloidal field coils and divertor coils for the 2D interpolation and extrapolation of discrete magnetic measurements in a Tokamak. The method is generic and can be used to provide Cauchy boundary conditions needed as input by a fixed domain equilibrium reconstruction code like Equinox. It can also be used to extrapolate the magnetic measurements in order to compute the plasma boundary itself. The proposed method and algorithm are detailed in the paper and results from numerous numerical experiments are presented. The method is foreseen to be used in the real time plasma control loop on the WEST Tokamak.}},  language = {English},  affiliation = {Laboratoire Jean Alexandre Dieudonn{\'e} - JAD , CASTOR - INRIA Sophia Antipolis , Institut de Recherche sur la Fusion par confinement Magn{\'e}tique (ex DRFC) - IRFM},  pages = {accepted},  journal = {Plasma Physics and Controlled Fusion},  audience = {international },  year = {2014},  pdf = {http://hal.archives-ouvertes.fr/hal-00862399/PDF/vacth.pdf},  }