Results 71 to 80 of about 21,984 (205)
International Journal for Numerical Methods in Engineering, Volume 126, Issue 17, 15 September 2025.ABSTRACT The highly anisotropic, multi‐scale nature of fusion plasma simulations in tokamaks, combined with the complexity in the geometries of plasma‐facing components and magnetic equilibrium, challenges numerical schemes. They therefore require the development of advanced numerical techniques to enhance computational efficiency and enable codes to ...
Marcello Capasso +3 more
wiley +1 more source
On the Description of Turbulent Transport in Magnetic Confinement Systems
PhysicsWe show how a source-aware fluid closure framework for turbulent transport performs well on the confinement timescale in magnetically confined plasmas.
Jan Weiland, Tariq Rafiq
doaj +1 more source
Atoms, 2017 The shape of atomic spectral lines in plasmas contains information on the plasma parameters, and can be used as a diagnostic tool. Under specific conditions, the plasma located at the edge of tokamaks has parameters similar to those in magnetic white ...
Joël Rosato +7 more
doaj +1 more source
Measurements of Auroral Plasma Properties Using Low‐Cost, Mobile, Ground‐Based Detectors
Earth and Space Science, Volume 12, Issue 9, September 2025.Abstract An expedition to Fairbanks, AK, was undertaken to study the aurora during the peak of solar cycle 25. Low‐cost diagnostics were developed to enable ground‐based measurements of ionospheric plasma parameters and auroral phenomena, namely a compact spectrometer and a high‐resolution all‐sky camera with 2‐axis magnetometer. Observations were made
S. Mackie +7 more
wiley +1 more source
Partition Functions and Mass Action Constants of Plasmas of Light Elements at Higher Temperatures
Contributions to Plasma Physics, Volume 65, Issue 7, August 2025.ABSTRACT We first analyze the relations between the work of Planck and Klimontovich and show that Klimontovich's kinetic theory of non‐ideal plasmas confirms Planck's partition function for the hydrogen plasma. We discuss and check the Planck‐Brillouin‐Larkin (PBL) expressions for Hydrogen with PIMC calculations and derive new partition functions and ...
Werner Ebeling, Gerd Röpke
wiley +1 more source
A Review of Fusion and Tokamak Research Towards Steady-State Operation: A JAEA Contribution
Energies, 2010 Providing a historical overview of 50 years of fusion research, a review of the fundamentals and concepts of fusion and research efforts towards the implementation of a steady state tokamak reactor is presented.
Mitsuru Kikuchi
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Computer Graphics Forum, Volume 44, Issue 3, June 2025.Abstract We introduce a fast and invertible approximation for fusion plasma simulation data represented as 2D planar meshes with connectivities approximating magnetic field lines along the toroidal dimension in deformed 3D toroidal spaces. Scientific variables (e.g., density and temperature) in these fusion data are interpolated following a complex ...
Congrong Ren +6 more
wiley +1 more source
Plasma Physics and Controlled Fusion, 1991 Helium, as the ash of burning D-T plasma, is an unavoidable impurity component necessarily present already in near future tokamak experiments with significant alpha particle heating. Its efficient removal from the burning zone of a D-T fusion reactor plays a key role in the path towards achievement of economic fusion power production. A survey is given
Schneider, R. +5 more
openaire +3 more sources
Orbit-space sensitivity of two-step reaction gamma-ray spectroscopy
Nuclear FusionWe calculate the orbit-space sensitivity of two-step reaction gamma-ray spectroscopy diagnostics in toroidally symmetric magnetic equilibria, using the reaction between alpha particles and beryllium-9 as an example.
A. Valentini +13 more
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Experimental scaling of compressional Alfvén eigenmode stability
Nuclear FusionBoth co-propagating and counter-propagating compressional Alfvén eigenmodes (CAE) are relatively ubiquitous in NSTX plasmas with toroidal field strengths of ⩽4.65 kG, but are largely absent in the NSTX-U plasmas with toroidal fields of 5.7–5.9 kG.
E.D. Fredrickson
doaj +1 more source