A QSS approach for particle source identification in Tore Supra tokamak

Emmanuel Witrant (1) , Marc Goniche (2)

1 GIPSA-SLR - GIPSA - Systèmes linéaires et robustesse
2 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique

In this work, we consider the problem of particle source identification from distributed electron density measurements in fusion plasmas, such as the ones obtained in Tore Supra tokamak. A transport model, suitable for identification purposes, is first proposed based on a simplification of classical particle transport models. We then derive a quasi-steady state (QSS) description, which is shown to converge exponentially towards the true solution. Finally, an identification method is proposed based on the QSS model and a shape approximation of the source term. ToreSupra data is used to illustrate the different results with experimental measurements.

Domaines: Physique des plasmas [physics.plasm-ph]; Automatique / Robotique

Emmanuel Witrant, Marc Goniche. A QSS approach for particle source identification in Tore Supra tokamak. CDC 2009 - 48th IEEE Conference on Decision and Control, Dec 2009, Shanghai, China. ⟨hal-00444549⟩