Results 21 to 30 of about 4,889,124 (198)

A framework for discrete optimization of stellarator coils [PDF]

Nuclear Fusion
Designing magnets for three-dimensional plasma confinement is a key task for advancing the stellarator as a fusion reactor concept. Stellarator magnets must produce an accurate field while leaving adequate room for other components and being reasonably ...
K.C. Hammond
doaj   +2 more sources

A promising approach to steady-state fusion: High-temperature superconducting strong-field stellarator with precise omnigenity [PDF]

The Innovation
The stellarator has inherent advantages over the tokamak in achieving steady-state operation, especially due to its absence of disruptions and lack of need for current drive and the associated recirculating power.
Guosheng Xu, Zhiyuan Lu, Dehong Chen, Baonian Wan   +3 more
doaj   +2 more sources

Global stellarator coil optimization with quadratic constraints and objectives [PDF]

Nuclear Fusion
Most present stellarator designs are produced by costly two-stage optimization: the first for an optimized equilibrium, and the second for a coil design reproducing its magnetic configuration.
Lanke Fu, Elizabeth J. Paul, Alan A. Kaptanoglu, Amitava Bhattacharjee   +3 more
doaj   +2 more sources

The scoping, design, and plasma physics optimization of the Eos neutron source stellarator

Nuclear Fusion
On the path to a fusion pilot plant, Thea Energy plans to build Eos, a sub-breakeven, deuterium-deuterium, beam-target fusion, stellarator neutron source facility for producing tritium and other valuable radioisotopes.
C.P.S. Swanson, D.A. Gates, S.T.A. Kumar, M.F. Martin, T.G. Kruger, D.W. Dudt, P.J. Bonofiglo, the Thea Energy team   +7 more
doaj   +2 more sources

Considerations on Stellarator’s Optimization from the Perspective of the Energy Confinement Time Scaling Laws

Applied Sciences (Switzerland), 2022
The Stellarator is a magnetic configuration considered a realistic candidate for a future thermonuclear fusion commercial reactor. The most widely accepted scaling law of the energy confinement time for the Stellarator is the ISS04, which employs a ...
A Murari, E Peluso, Luca Spolladore
exaly   +2 more sources

Coil optimization for quasi-helically symmetric stellarator configurations [PDF]

Journal of Plasma Physics, 2023
Filament-based coil optimizations are performed for several quasi-helical stellarator configurations, beginning with the one from Landreman & Paul (Phys. Rev. Lett., vol.
A. Wiedman, S. Buller, M. Landreman
semanticscholar   +3 more sources

Recent advances in stellarator optimization

Nuclear Fusion, 2016
Computational optimization has revolutionized the field of stellarator design. To date, optimizations have focused primarily on optimization of neoclassical confinement and ideal MHD stability, although limited optimization of other parameters has also been performed.
D. Gates, A. Boozer, T. Brown, J. Breslau, D. Curreli, M. Landreman, S. Lazerson, J. Lore, H. Mynick, G. Neilson, N. Pomphrey, P. Xanthopoulos, A. Zolfaghari   +12 more
semanticscholar   +4 more sources

Optimization of nonlinear turbulence in stellarators

Journal of Plasma Physics
We present new stellarator equilibria that have been optimized for reduced turbulent transport using nonlinear gyrokinetic simulations within the optimization loop. The optimization routine involves coupling the pseudo-spectral GPU-native gyrokinetic codeGXwith the stellarator equilibrium and optimization codeDESC.
Kim, P., Buller, S., Conlin, R., Dorland, W., Dudt, D.W., Gaur, R., Jorge, R., Kolemen, E., Landreman, M., Mandell, N.R., Panici, D.   +10 more
openaire   +3 more sources

Single-stage stellarator optimization: combining coils with fixed boundary equilibria [PDF]

Plasma Physics and Controlled Fusion, 2023
We introduce a novel approach for the simultaneous optimization of plasma physics and coil engineering objectives using fixed-boundary equilibria that is computationally efficient and applicable to a broad range of vacuum and finite plasma pressure ...
R. Jorge, A. Goodman, M. Landreman, J. Rodrigues, F. Wechsung   +4 more
semanticscholar   +1 more source

Magnetic configuration effects on the Wendelstein 7-X stellarator [PDF]

, 2022
855860The two leading concepts for confining high-temperature fusion plasmas are the tokamak and the stellarator. Tokamaks are rotationally symmetric and use a large plasma current to achieve confinement, whereas stellarators are non-axisymmetric and ...
Roscher, H.-J., Keunecke, M., Dinklage, A., et al.   +3 more
core   +6 more sources