Results 61 to 70 of about 21,984 (205)
, 1985 A small steady-state tokamak capable of producing power in the 100 to 300 MWe range and relying on electron cyclotron RF heating (ECH) for both heating and current drive is described. Working in the first MHD stability regime for tokamaks, the approach adheres to the recently discovered maximum beta limit. An appropriate figure of merit is the ratio of
Firestone, M. A. +2 more
openaire +3 more sources
Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.The breeder blanket, as a critical component in fusion reactors, undertakes three essential functions: tritium breeding, neutron shielding, and thermal energy conversion. Serving as the primary plasma‐facing component, it operates under extreme conditions—including sustained high temperatures, intense neutron irradiation fluxes, significant ...
Ruonan Zhang +4 more
wiley +1 more source
The effect of magnetic islands on ITG turbulence driven transport
, 2015 In this work, we address the question of the influence of magnetic islands on the perpendicular transport due to steady-state ITG turbulence on the energy transport time scale.
Hariri, F., Hill, P., Ottaviani, M.
core +1 more source
On the Behavior of Two C1 Finite Elements Versus Anisotropic Diffusion
International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1541-1557, December 2025.Bi‐cubic Hemite‐Bézier and reduced cubic Hsieh‐Clough‐Tocher finite elements, of class C1, are compared for the solution of a highly anisotropic diffusion equation. They are tested numerically for various ratios of the diffusion coefficients on different meshes, even aligned with the anisotropy.
Blaise Faugeras +3 more
wiley +1 more source
Excitation of Whistler‐Mode Waves by an Electron Temperature Anisotropy in a Laboratory Plasma
Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.Abstract Naturally occurring whistler‐mode waves in near‐Earth space play a crucial role in accelerating electrons to relativistic energies and scattering them in pitch angle, driving their precipitation into Earth's atmosphere. Here, we report on the results of a controlled laboratory experiment focusing on the excitation of whistler waves via ...
Donglai Ma +8 more
wiley +1 more source
, 1978 A tokamak configuration is proposed that permits the rapid replacement of a plasma discharge in a ''burn'' chamber by another one in a time scale much shorter than the elementary thermal time constant of the chamber first wall. With respect to the chamber, the effective duty cycle factor can thus be made arbitrarily close to unity minimizing the cyclic
openaire +2 more sources
The Solar Wind Interaction With an Orbiting Venus
Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.Abstract Studies of the large‐scale interaction of the solar wind with planets have often been considered along the line of the sun to the planet, neglecting the planet's orbital motion. This paper describes a new refinement in the long history of Venus simulations, the addition of the planet's orbital motion.
Stephen H. Brecht, Stephen A. Ledvina
wiley +1 more source
Isotope impact on Alfvén eigenmodes and fast ion transport in DIII-D
Nuclear FusionMeasurements of beam driven Alfvén Eigenmode (AE) activity in matched deuterium (D) and hydrogen (H) DIII-D plasmas show a dramatic difference in unstable mode activity and fast ion transport for a given injected beam power.
M.A. Van Zeeland +12 more
doaj +1 more source
Effective Resistivity for Magnetohydrodynamic Simulation of Collisionless Magnetic Reconnection
Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.Abstract The electron inertia and the off‐diagonal electron pressure terms are well‐known for the frozen‐in condition breakdown in collisionless magnetic reconnection, which are naturally kinetic and difficult to employ in magnetohydrodynamic (MHD) simulations.
H. W. Zhang, Z. W. Ma, T. Chen
wiley +1 more source
Wave–particle interactions in tokamaks
Nuclear FusionTransport consequences of the wave–particle interactions in the quasilinear plateau (QP) regime are presented. Eulerian approach is adopted to solve the drift kinetic equation that includes the physics of the nonlinear trapping (NT) and QP regimes.
K.C. Shaing +3 more
doaj +1 more source