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.

Lerche, E., Goniche, M., Jacquet, P., Van Eester, D., Bobkov, V., Colas, L., et al. (2016). Optimization of ICRH for core impurity control in JET-ILW. NUCLEAR FUSION, 56(3) [10.1088/0029-5515/56/3/036022].

Optimization of ICRH for core impurity control in JET-ILW

GORINI, GIUSEPPE;NOCENTE, MASSIMO;TARDOCCHI, MARCO;
2016

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.
Articolo in rivista - Articolo scientifico
ICRF heating; ITER-like wall; JET; tokamak;
ICRF heating; ITER-like wall; JET; tokamak; Condensed Matter Physics; Nuclear and High Energy Physics
English
2016
56
3
036022
partially_open
Lerche, E., Goniche, M., Jacquet, P., Van Eester, D., Bobkov, V., Colas, L., et al. (2016). Optimization of ICRH for core impurity control in JET-ILW. NUCLEAR FUSION, 56(3) [10.1088/0029-5515/56/3/036022].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/128651
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