Results 11 to 20 of about 2,890 (280)

Penetration properties of applied resonant magnetic perturbation in HL-2A tokamak

open access: yesNuclear Fusion, 2023
Any arbitrary perturbation on a magnetic field separatrix can cause a structure named homoclinic tangle in tokamaks. Both an edge localized mode (ELM) and a resonant magnetic perturbation (RMP) can lead to a perturbation of the magnetic field on the ...
X. Wang   +5 more
doaj   +1 more source

Modeling snowflake divertors in MAST-U tokamak using UEDGE code

open access: yesNuclear Materials and Energy, 2021
In a snowflake (SF) divertor, two magnetic field nulls are placed close to each other creating four strike points (SPs) cf. two in a standard single-null (SN) divertor.
A.I. Khrabry   +5 more
doaj   +1 more source

Advanced Divertor Concept – RF Divertor

open access: yesFusion Technology, 1995
The application of radio-frequency (RF) forces to divertor plasma is proposed for the improvement of its relevance to reactors. RF fields are applied at the entrance of closed divertor rooms. Ponderomotive forces sustain high density scrape-off plasma which screens the penetration of neutral atoms into core plasma regions, and create positive ...
Tsuguhiro Watanabe   +2 more
openaire   +1 more source

Experimental Divertor Similarity Database Parameters [PDF]

open access: yes, 1995
A set of experimentally-determined dimensionless parameters is proposed for characterizing the regime of divertor operation. The objective is to be able to compare as unambiguously as possible the operation of different divertors and to understand what ...
Hutchinson, I. H.   +2 more
core   +4 more sources

Neutron activation and radiation damage assessment for W-Ni-Fe tungsten heavy alloys with variable Ni content

open access: yesNuclear Materials and Energy, 2021
A challenging issue for the magnetic fusion concept of generating nuclear power is the performance of plasma-facing components, particularly in the divertor within the fusion power plant.
Laila A. El-Guebaly   +4 more
doaj   +1 more source

3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade [PDF]

open access: yes, 2016
In recent experiments, a local gas puff was found to be an effective way to tailor the scrape-off layer (SOL) density and improve the ion cyclotron range of frequency (ICRF) power coupling in tokamaks.
Bilato, R.   +10 more
core   +2 more sources

Local magnetic divertor for control of the plasma-limiter interaction in a tokamak [PDF]

open access: yes, 1984
An experiment is described in which plasma flow to a tokamak limiter is controlled through the use of a local toroidal divertor coil mounted inside the limiter itself.
Gould, R. W.   +2 more
core   +1 more source

Microstructure and mechanical properties of dispersion strengthened tungsten by HIP treatment followed by thermal annealing

open access: yesResults in Materials, 2020
Improvement of brittle mechanical properties on plasma facing materials-tungsten (PFM-W) is required for development of advanced divertors. We have developed dispersion-strengthened (DS)-W-Ti alloys using a new process which is based on a combination of ...
H. Noto   +3 more
doaj   +1 more source

Kinetic model of the COMPASS tokamak SOL

open access: yesNuclear Materials and Energy, 2021
In this work we report on results of full size kinetic modelling of the COMPASS tokamak SOL. Presented simulations indicate, that i. kinetic effects are significant in the inner divertor (ID) plasma; ii.
D. Tskhakaya   +6 more
doaj   +1 more source

MAST Upgrade Divertor Facility: A Test Bed for Novel Divertor Solutions [PDF]

open access: yesIEEE Transactions on Plasma Science, 2018
The challenge of integrated exhaust consistent with the other requirements in DEMO and power plant class tokamaks (ITER-like and alternative DEMOs, Fusion Nuclear Science Facility approaches) is well-known and the exhaust solution is likely to be fundamental to the design and operating scenarios chosen.
Morris, A. W.   +6 more
openaire   +2 more sources

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