Results 41 to 50 of about 2,079 (226)

Evaluation of metal additive manufacturing for high-field modular-stellarator radial plates and conductors

Nuclear Materials and Energy, 2022
The utilization of metal additively manufactured radial plates and conductors for high-field modular-stellarator coils is assessed, particularly, for resistive coils having turns of variable cross-section (additively manufactured aluminium or copper ...
V. Queral, E. Rincón, S. Cabrera, A. Lumsdaine   +3 more
doaj   +1 more source

Less constrained omnigeneous stellarators

, 2014
A stellarator is said to be omnigeneous if all particles have vanishing average radial drifts. In omnigeneous stellarators, particles are perfectly confined in the absence of turbulence and collisions, whereas in non-omnigeneous configurations, particle ...
Parra, F., Helander, P, Calvo, I, Calvo, I., Helander, P., Parra, FI, Landreman, M., Landreman, M   +7 more
core   +1 more source

Stellarator fusion systems enabled by arrays of planar coils

Nuclear Fusion
We present an overview of a novel electromagnetic coil configuration for stellarators and its application to two near-term fusion systems. The novel coil configuration is the planar coil stellarator, able to implement precisely-quasisymmetric 3D magnetic
D.A. Gates, S. Aslam, B. Berzin, P. Bonofiglo, A. Cote, D.W. Dudt, E. Flom, D. Fort, A. Koen, T.G. Kruger, S.T.A. Kumar, M.F. Martin, A. Ottaviano, S. Pasmann, P.K. Romano, C.P.S. Swanson, L. Tang, E. Winkler, R. Wu   +18 more
doaj   +1 more source

Shaping the Future of Energy: Breakthrough Additive Manufacturing (3D) Technologies for Renewables

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Additive manufacturing (AM), a rapidly growing field of application, is widely used to create environmentally friendly energy production and storage systems. This study presents a comprehensive analysis of recent developments in the production of renewable energy systems (RESs) using AM technologies, focusing on advantages, challenges, and possible ...
Gülbahar Bilgiç Tüzemen, Emre Yurtkuran, Nazim Babacan, Muhammad Muzamal Ashfaq, Fatih Arlı, Ali Emre Gök, Mehmet Çağrı Tüzemen, Huaiyu Wang   +7 more
wiley   +1 more source

Modification of ion-temperature-gradient turbulence by impurities in stellarator plasmas

Nuclear Fusion
Recent nonlinear gyrokinetic simulations have shown that impurities can strongly modify the turbulent heat flux in stellarator plasmas. Here, the ion-temperature-gradient (ITG) dispersion relation in a plasma containing impurities is analytically solved ...
Iván Calvo, Félix I. Parra, Hanne Thienpondt, José Manuel García-Regaña   +3 more
doaj   +1 more source

Implications of Innovative Nuclear Technologies on Ghana’s Nuclear Future

Science and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Innovations in nuclear technology have the potential to play a transformative role in Ghana’s pursuit of a secure, reliable and low‐carbon energy future. This review examines recent global advances in nuclear reactor technologies, fuel cycle systems, waste management approaches, regulatory practices and digital applications and assesses their relevance
R. G. Abrefah, B. K. A. Baiden, F. Ameyaw, S. A. Zakaria, Doddy Kastanya   +4 more
wiley   +1 more source

Data-driven approach to model the influence of magnetic geometry in the confinement of fusion devices

Nuclear Fusion
Designing a fusion energy device to produce as much energy as possible requires balancing numerous physics constraints and metrics. In stellarators, the geometry is very flexible and involves a large number of free parameters.
R. Laia, R. Jorge, G. Abreu
doaj   +1 more source

Fast and Invertible Simplicial Approximation of Magnetic‐Following Interpolation for Visualizing Fusion Plasma Simulation Data

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, Robert Hager, Randy Michael Churchill, Albert Mollén, Seung‐Hoe Ku, Choong‐Seock Chang, Hanqi Guo   +6 more
wiley   +1 more source

Formation of a Boron‐Oxide Termination for the (100) Diamond Surface

Advanced Materials Interfaces, Volume 11, Issue 33, November 25, 2024.
A boron‐oxide termination for (100) diamond is formed under ultrahigh vacuum conditions. This is the first demonstration of a new method of introducing a boron‐based species to the diamond lattice. This result has potential for enabling new surface‐based pathways to the fabrication of high quality boron‐doped delta layers and boron‐based material ...
Alex K. Schenk, Rebecca Griffin, Anton Tadich, Daniel Roberts, Alastair Stacey   +4 more
wiley   +1 more source

Influence of the density gradient on turbulent heat transport at ion-scales: an inter-machine study with the gyrokinetic code stella

Nuclear Fusion
Efficient control of turbulent heat transport is crucial for magnetic confinement fusion reactors. This work discusses the complex interplay between density gradients and microinstabilities, shedding light on their impact on turbulent heat transport in ...
H. Thienpondt, J.M. García-Regaña, I. Calvo, G. Acton, M. Barnes   +4 more
doaj   +1 more source