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Equilibrium reconstruction at JET using Stokes model for polarimetry

Blaise Faugeras 1 Francesco Orsitto 1 
1 CASTOR - Control, Analysis and Simulations for TOkamak Research
CRISAM - Inria Sophia Antipolis - Méditerranée , JAD - Laboratoire Jean Alexandre Dieudonné
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 profiles are better constrained with smaller error bars and are closer from the profiles reconstructed by EFTM, the EFIT JET code using internal MSE constraints.
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Reports (Research report)
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Submitted on : Tuesday, February 13, 2018 - 5:39:56 PM
Last modification on : Wednesday, October 26, 2022 - 8:15:05 AM
Long-term archiving on: : Monday, May 7, 2018 - 7:16:57 AM


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  • HAL Id : hal-01708553, version 1


Blaise Faugeras, Francesco Orsitto. Equilibrium reconstruction at JET using Stokes model for polarimetry. [Research Report] RR-9153, INRIA Sophia Antipolis - Méditerranée. 2018, pp.1-32. ⟨hal-01708553⟩



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