Results 31 to 40 of about 1,936 (209)

Gyrokinetic modelling of light to heavy impurity transport in tokamaks

open access: yes, 2021
International audienceAbstract Impurity transport is numerically investigated for different types of impurity, such as helium (He), argon (Ar), and tungsten (W).
Gravier, Etienne   +6 more
core   +1 more source

Simultaneous Observation of Tungsten Spectra of W0 to W46+ Ions in Visible, VUV and EUV Wavelength Ranges in the Large Helical Device

open access: yesAtoms, 2021
Spectroscopic studies for emissions released from tungsten ions have been conducted in the Large Helical Device (LHD) for contribution to the tungsten transport study in tungsten divertor fusion devices and for expansion of the experimental database of ...
Tetsutarou Oishi   +7 more
doaj   +1 more source

Evaluation of plasma impurity concentration during radiative divertor operation mode on EAST

open access: yesHe jishu, 2022
BackgroundBy injecting gaseous neon (Ne) or argon (Ar) into the divertor region, the radiative divertor operation mode has been successfully realized on experimental advanced superconducting tokamak (EAST).
JI Huajian   +16 more
doaj   +1 more source

Observation of reduced-turbulence regime with tungsten injection in HL-2A edge plasmas

open access: yesNuclear Fusion, 2023
A reduced-turbulence regime has been observed in HL-2A NBI-heated deuterium plasmas. The transition to this regime is achieved by injecting a certain amount of tungsten into the plasma based on the laser blow-off technique.
Q. Zou   +16 more
doaj   +1 more source

Theoretical description of heavy impurity transport and its application to the modelling of tungsten in JET and ASDEX upgrade [PDF]

open access: yesPlasma Physics and Controlled Fusion, 2014
9 pages, 11 figures, EPS Berlin Plasma Physics 2014, Invited speaker, submitted to Plasma Physics and Controlled ...
Casson, F. J.   +199 more
openaire   +6 more sources

Reproduction of collector probe deposition profiles using the far-SOL impurity transport code 3DLIM

open access: yesNuclear Materials and Energy, 2020
First results are reported from the 3D Monte Carlo far-SOL impurity transport code 3DLIM. Tungsten deposition profiles measured on a Collector Probe (CP) located in the far-SOL near the outer midplane, OMP, during W tracer experiments in DIII-D are ...
S.A. Zamperini   +7 more
doaj   +1 more source

Modelling of tungsten erosion and deposition in the divertor of JET-ILW in comparison to experimental findings

open access: yesNuclear Materials and Energy, 2019
The erosion, transport and deposition of tungsten in the outer divertor of JET-ILW has been studied for an H-Mode discharge with low frequency ELMs.
A. Kirschner   +11 more
doaj   +1 more source

Simulations of impurity transport with TERESA and GYSELA codes

open access: yes, 2022
International audienceWe analyze properties of the radial turbulent transport of light to heavy impurities based on global gyrokinetic simulations. We describe how transport depends on impurity concentration, charge, mass, gradients, poloidal asymmetry ...
Lim, Kyungtak   +12 more
core   +1 more source

Self-consistent gyrokinetic modeling of neoclassical and turbulent impurity transport

open access: yes, 2018
International audienceTrace impurity transport is studied with the flux-driven gyrokinetic GYSELA code [V. Grandgirard et al., $Comp.\ Phys.\ Commun.$\ 207, 35 (2016)].
S. Breton   +38 more
core   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

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