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J. W. Coenen

Researcher at Forschungszentrum Jülich

Publications -  173
Citations -  5719

J. W. Coenen is an academic researcher from Forschungszentrum Jülich. The author has contributed to research in topics: Tungsten & Divertor. The author has an hindex of 38, co-authored 165 publications receiving 4651 citations. Previous affiliations of J. W. Coenen include Culham Centre for Fusion Energy & Oak Ridge National Laboratory.

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Rotation dependence of a phase delay between plasma edge electron density and temperature fields due to a fast rotating, resonant magnetic perturbation field

TL;DR: In this paper, a phase delay Φ between the ne and temperature Te waveforms is observed and it is demonstrated that this phase delay is a function of the radius with Φ(r) depending on the relative rotation of the RMP field and the toroidal plasma rotation.
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Power handling of a segmented bulk W tile for JET under realistic plasma scenarios

TL;DR: In this article, a solid tungsten divertor row has been designed for JET in the frame of the ITER-like wall project (ILW), where the plasma-facing tiles are segmented in four stacks of Tungsten lamellae oriented in the toroidal direction.
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Plastic deformation of recrystallized tungsten-potassium wires: Constitutive deformation law in the temperature range 22–600 °C

TL;DR: In this article, the authors investigated the mechanical and microstructural properties of potassium-doped tungsten wires, being heat treated at 2300°C and tested in temperature range 22-600°C.
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On Oxidation Resistance Mechanisms at 1273 K of Tungsten-Based Alloys Containing Chromium and Yttria

TL;DR: In this article, a thin film smart alloys produced by magnetron sputtering was investigated and the mechanisms yielding the improved oxidation resistance were analyzed in detail, including passivation and suppression of WO3 sublimation.
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Enhanced performance in fusion plasmas through turbulence suppression by megaelectronvolt ions

Silvo Mazzi, +1200 more
- 30 Jun 2022 - 
TL;DR: In this paper , the authors report improved thermal ion confinement in the presence of megaelectronvolts ions and strong fast ion-driven Alfvénic instabilities in recent experiments on the Joint European Torus tokamak.