A QSS approach for particle source identification in Tore Supra tokamak

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...

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Bibliographic Details
Main Authors: Witrant, E., Goniche, M., Tore Supra, E.
Format: Conference Proceeding
Language:English
Subjects:
Density measurement
Electrons
Fusion reactors
Plasma density
Plasma measurements
Plasma sources
Plasma transport processes
Plasma waves
Shape
Tokamaks
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Summary: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. Tore Supra data is used to illustrate the different results with experimental measurements.
ISSN:0191-2216
DOI:10.1109/CDC.2009.5400382