Results 1 to 10 of about 14,440 (202)

Transport and divertor properties of the dynamic ergodic divertor [PDF]

open access: yesPlasma Physics and Controlled Fusion, 2005
The concept of the dynamic ergodic divertor (DED) is based on plasma edge ergodization by a resonant perturbation. Such a divertor concept is closely related to helical or island divertors in stellerators. The base mode of the DED perturbation field can be m/n = 12/4, 6/2 or 3/1.
M Lehnen   +25 more
core   +5 more sources

An optimized upper divertor with divertor-coils to study enhanced divertor configurations in ASDEX Upgrade [PDF]

open access: yesFusion Engineering and Design, 2017
Abstract A new upper divertor with in-vessel coils to investigate ‘advanced’ magnetic configurations will be installed in ASDEX Upgrade. ‘Advanced’ magnetic configurations are part of a risk mitigation strategy should the conventional divertor configuration approach not be applicable for future fusion reactors.
M Teschke, M Faitsch, R Neu
exaly   +3 more sources

Role of molecular effects in divertor plasma recombination

open access: yesNuclear Materials and Energy, 2017
Molecule-Activated Recombination (MAR) effect is re-considered in view of divertor plasma conditions. A strong isotopic effect is demonstrated. In deuterium plasmas, the reaction chain through D2+ formation, usually considered dominant and included in 2D
A S Kukushkin   +2 more
exaly   +3 more sources

Recent progress of plasma exhaust concepts and divertor designs for tokamak DEMO reactors

open access: yesNuclear Materials and Energy, 2023
The power exhaust concept and an appropriate divertor design are common critical issues for tokamak DEMO design activities which have been carried out in Europe, Japan, China, Korea and the USA.
N Asakura, K Hoshino, F Subba
exaly   +3 more sources

The isotope effect on divertor conditions and neutral pumping in horizontal divertor configurations in JET-ILW Ohmic plasmas

open access: yesNuclear Materials and Energy, 2017
Understanding the impact of isotope mass and divertor configuration on the divertor conditions and neutral pressures is critical for predicting the performance of the ITER divertor in DT operation.
M Groth, D Moulton, M Brix
exaly   +3 more sources

Investigation of 3D effects on heat fluxes in performance-optimized island divertor configurations at Wendelstein 7-X

open access: yesNuclear Materials and Energy, 2019
The 3D effects on divertor heat loads have been investigated for performance-optimized island divertor configurations at Wendelstein 7-X with 3D modeling and IR camera measurements.
F Effenberg, J Geiger, O Schmitz
exaly   +3 more sources

Dependence of particle and power dissipation on divertor geometry and plasma shaping in DIII-D small-angle-slot divertor

open access: yesNuclear Materials and Energy, 2022
Dedicated experiments in DIII-D find that magnetic shaping and divertor target geometry significantly affect the divertor plasma conditions and divertor detachment process in the small-angle-slot (SAS) divertor.
H.Q. Wang   +12 more
doaj   +1 more source

The effect of impurity seeding into the closed divertor on plasma detachment in the HL-2A tokamak

open access: yesNuclear Fusion, 2023
Recent progress towards an increased understanding of detached divertor physics has been made with the highly closed divertor geometry in HL-2A. Non-intrinsic impurities were injected into the outer divertor chamber, and increased divertor neutral ...
J.M. Gao   +23 more
doaj   +1 more source

Control of tungsten impurity source and edge transport using different gas injection with full tungsten divertor on EAST

open access: yesNuclear Materials and Energy, 2022
Tungsten (W) erosion and edge transport are investigated for EAST L-mode discharges with different gas injection. It is found that W erosion can be suppressed or mitigated by Ne or D2 seeding when divertor detachment is achieved.
R. Ding   +18 more
doaj   +1 more source

An innovative approach to the improved radiating divertor concept by supersonic molecular beam injection on HL-2A

open access: yesNuclear Fusion, 2023
The ‘puff-and-pump’ radiating divertor condition is a promising approach for the reduction of excessive thermal power loading on the divertor targets. The divertor supersonic molecular beam injection (SMBI) system installed on HL-2A strongly enhances the
G.L. Xiao   +19 more
doaj   +1 more source

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