Results 1 to 10 of about 1,276,201 (259)

H-mode transition and pedestal studies. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2023
The high confinement mode (H-mode) is the widely adopted standard operation scenario for the path to fusion in toroidal confinement devices. Since its discovery in 1982, the H-mode and access to the H-mode (the low to high and high to low transitions) remain two of the most actively researched areas in magnetically confined fusion programmes across the
Andrew Y, Kim EJ.
europepmc   +3 more sources

Modulation behaviour and possible existence criterion of geodesic acoustic modes in tokamak devices

open access: yesNuclear Fusion, 2023
Geodesic acoustic modes (GAMs) represent the oscillating counterpart of zonal flow in tokamak plasma and can affect transport due to their interaction with turbulence eddies.
F. Palermo   +3 more
doaj   +1 more source

Fluid modeling of an ELMing H-mode and a RMP H-mode [PDF]

open access: yesJournal of Nuclear Materials, 2009
Abstract In this paper, we investigate the role of wall conditions during the density pump-out observed in Resonant Magnetic Perturbation (RMP) experiments. We use a 2D fluid code, coupled to a neutral Monte-Carlo code (SOLPS5) to model a reference ELMing H-mode.
Mordijck, S.   +13 more
openaire   +3 more sources

Direct measurement of the electron turbulence-broadening edge transport barrier to facilitate core–edge integration in tokamak fusion plasmas

open access: yesNuclear Fusion, 2023
The integration of a high-performance core and a dissipative divertor, or the so-called ‘core–edge integration,’ has been widely identified as a critical gap in the design of future fusion reactors.
H.Q. Wang   +14 more
doaj   +1 more source

Micro-tearing mode dominated electron heat transport in DIII-D H-mode pedestal

open access: yesNuclear Fusion, 2023
A new, comprehensive set of evidence reveals that Micro-Tearing Modes (MTMs) dominate pedestal electron heat transport in an H-mode experiment in the DIII-D tokamak. The experiment investigates the role of MTMs by scanning pedestal collisionality, a main
J. Chen   +11 more
doaj   +1 more source

Fast Decision Method for H.266/VVC Intra Prediction Mode [PDF]

open access: yesJisuanji gongcheng, 2021
In order to reduce the coding complexity of the new generation of high-efficiency video coding standard H.266/VVC, a fast prediction mode decision method is proposed for intra coding.The distribution characteristic of transform residuals is first ...
LI Wei, FAN Caixia
doaj   +1 more source

Probing the $$h c\bar{c} $$ h c c ¯ coupling at a Future Circular Collider in the electron-hadron mode

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study the production of a neutral Higgs boson at a Future Circular Collider in the electron-hadron mode (FCC-eh) through the leading process $$e^- p \rightarrow \nu _e h q $$ e - p → ν e h q assuming the decay channel $$h \rightarrow c \bar{c} $$ h ...
J. Hernández-Sánchez   +2 more
doaj   +1 more source

The H-Mode of ASDEX

open access: yesNuclear Fusion, 1989
The paper is a review of investigations of the H-mode on ASDEX performed since its discovery in 1982. The topics discussed are: (1) the development of the plasma profiles, with steep gradients in the edge region and flat profiles in the bulk plasma, (2) the MHD properties resulting from the profile changes, including an extensive stability analysis, (3)
  +8 more sources

Overview of initial negative triangularity plasma studies on the ASDEX Upgrade tokamak

open access: yesNuclear Fusion, 2022
An overview of results of negative triangularity (NT) studies from the ASDEX Upgrade tokamak (AUG) is given. Moderate values of the triangularity in the range of δ _average ≈ −0.2 have been obtained.
T. Happel   +8 more
doaj   +1 more source

“Snowflake” H Mode in a Tokamak Plasma [PDF]

open access: yesPhysical Review Letters, 2010
An edge-localized mode (ELM) H-mode regime, supported by electron cyclotron heating, has been successfully established in a "snowflake" (second-order null) divertor configuration for the first time in the TCV tokamak. This regime exhibits 2 to 3 times lower ELM frequency and 20%-30% increased normalized ELM energy (ΔWELM/Wp) compared to an identically ...
Piras F   +8 more
openaire   +3 more sources

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