Optimization of ICRH for core impurity control in JET-ILW

TitleOptimization of ICRH for core impurity control in JET-ILW
Publication TypeJournal Article
Year of Publication2016
AuthorsE. Lerche, M. Goniche, P. Jacquet, D. Van Eester, V. Bobkov, L. Colas, C. Giroud, I. Monakhov, F.J Casson, M. Tsalas, F. Rimini, C. Angioni, M. Baruzzo, T. Blackman, S. Brezinsek, M. Brix, A. Czarnecka, K. Crombe, C. Challis, R. Dumont, J. Eriksson, N. Fedorczak, M. Graham, J.P Graves, G. Gorini, J. Hobirk, E. Joffrin, T. Johnson, Y. Kazakov, V. Kiptily, A. Krivska, M. Lennholm, P. Lomas, C. Maggi, P. Mantica, G. Mathews, M. Mayoral, L. Meneses, J. Mlynar, P. Monier-Garbet, M.F Nave, C. Noble, M. Nocente, I. Nunes, J. Ongena, G. Petravich, V. Petrzilka, T. Putterich, M. Reich, M. Santala, E.R Solano, A. Shaw, G. Sips, M. Stamp, M. Tardocchi, M. Valisa, JET Contributors
JournalNuclear Fusion
Volume56
Issue3
Pagination036022
Abstract

Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the development of high power H-mode scenarios in the Jet European Torus ITER-like wall (JET-ILW). The ICRF performance was improved by enhancing the antenna-plasma coupling with dedicated main chamber gas injection, including the preliminary minimization of RF-induced plasma-wall interactions, while the RF heating scenarios where optimized for core impurity screening in terms of the ion cyclotron resonance position and the minority hydrogen concentration. The impact of ICRF heating on core impurity content in a variety of 2.5 MA JET-ILW H-mode plasmas will be presented, and the steps that were taken for optimizing ICRF heating in these experiments will be reviewed.

URLhttp://www.euro-fusionscipub.org/wp-content/uploads/2015/09/WPJET1PR1528.pdf
DOI10.1088/0029-5515/56/3/036022
Division

FP

Department

TP

PID

d602ccdf3e42dd82b551d41759691058

Alternate TitleNucl. Fusion
LabelOA

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