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Fusion Science and Technology
Latest News
Fermilab center renamed after late particle physicist Helen Edwards
Fermi National Accelerator Laboratory’s Integrated Engineering Research Center, which officially opened in January 2024, is now known as the Helen Edwards Engineering Center. The name was changed to honor the late particle physicist who led the design, construction, commissioning, and operation of the lab’s Tevatron accelerator and was part of the Water Resources Development Act signed by President Biden in December 2024, according to a Fermilab press release.
Y. G. Li, Ph. Lotte, W. Zwingmann, C. Gil, F. Imbeaux
Fusion Science and Technology | Volume 59 | Number 2 | February 2011 | Pages 397-405
Technical Paper | doi.org/10.13182/FST11-A11654
Articles are hosted by Taylor and Francis Online.
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.
