Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 59 / Number 2
Y. G. Li, Ph. Lotte, W. Zwingmann, C. Gil, F. Imbeaux
Fusion Science and Technology
Volume 59 / Number 2 / February 2011 / Pages 397-405
Format:electronic copy (download)
To improve the accuracy of the after-shot plasma equilibrium reconstruction on Tore Supra, the previous EFIT code, which utilizes only magnetic measurements as a constraint (we shall call it EFIT-mag in the text), has been modified into EFIT-pol by taking the far infrared polarimeter measurements into account. With a correct choice of the input parameters (mainly for the P' and FF' polynomial orders and for the weights on Faraday angles), the results reconstructed by EFIT-pol are in good agreement with the experimental values deduced from the magnetic measurements as well as with the CRONOS code simulations. In this paper, after a brief description of the EFIT code, the approach used to parameterize EFIT-pol is presented, and the accuracy improvement is shown for a typical shot of Tore Supra, as well as through statistics on a database of 95 shots of different plasma currents and additional powers.
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