Results 111 to 120 of about 1,911,396 (184)

Stellarator Optimization Using a Distributed Swarm Intelligence-Based Algorithm [PDF]

, 2012
The design of enhanced fusion devices constitutes a key element for the development of fusion as a commercial source of energy. Stellarator optimization presents high computational requirements because of the complexity of the numerical methods needed as
Castejón, Francisco, Vega-Rodríguez, Miguel A., Gómez-Iglesias, Antonio   +2 more
core  

How does the magnetic gradient scale length influence complexity of filamentary coils in stellarators?

Nuclear Fusion
The distance between the last closed flux surface (LCFS) and the nearest electromagnetic coils is a dominating factor in the cost, size, and engineering difficulty of stellarators.
John Kappel, Matt Landreman, Philipp Jurašić, Sophia A. Henneberg   +3 more
doaj   +1 more source

Single-Stage Stellarator Optimization: Combining Coils with Fixed Boundary Equilibria

, 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 ...
Wechsung, F., Goodman, A., Landreman, M., Jorge, R., Rodrigues, J.   +4 more
core  

Role of the radial electric field in the confinement of energetic ions in the Wendelstein 7-X stellarator

Nuclear Fusion
Good fast-ion confinement is an essential requirement for a fusion reactor. The magnetic configuration of the Wendelstein 7-X (W7-X) stellarator is partially optimized in this regard in a reactor-relevant scenario: it is expected to show improved fast ...
M. Arranz, J.L. Velasco, I. Calvo, D. Carralero   +3 more
doaj   +1 more source

Symplectic methods for optimization of wall heat loads by fusion alpha particles in stellarator reactors

Nuclear Materials and Energy
Predicting alpha particle heat loads on first-wall components is essential for stellarator reactor design. We present a symplectic guiding-center integration method that traces fusion-born alpha particles from the plasma core to physical wall surfaces ...
C.G. Albert, G. Grassler, J. Lion, J.-F. Lobsien, J. Schatzlmayr, F. Warmer   +5 more
doaj   +1 more source

FOCUS-HTS: a new stellarator coil design code for three-dimensional high-temperature superconducting magnets

Nuclear Fusion
Stellarators mainly utilize magnetic fields from external coils to confine the plasma, enabling steady-state operation while avoiding instabilities like disruptions raised from plasma currents.
Xianyi Nie, Jianlin Peng, Yidong Xie, Guodong Yu, Ke Liu, Caoxiang Zhu   +5 more
doaj   +1 more source

Quasi-single-stage optimization for permanent magnet stellarators

Nuclear Fusion
Advanced stellarators are typically optimized in two stages. The plasma equilibrium is optimized first, followed by the design of coils/permanent magnets.
Guodong Yu, Ke Liu, Tianyi Qian, Yidong Xie, Xianyi Nie, Caoxiang Zhu   +5 more
doaj   +1 more source

Elimination of MHD current sheets by modifications to the plasma wall in a fixed boundary model. [PDF]

Plasma Phys Control Fusion, 2020
Kim E, McFadden GB, Cerfon AJ.
europepmc   +1 more source

World Stellarator Program [PDF]

, 1987
This report investigates the development of stellarator programs around the world. Some topics included are: the comparisons of stellarators and tokamaks, present understanding of stellarators, near-term stellarator program, next generation facilities ...
Lyon, J.F.
core  

The European roadmap towards fusion electricity. [PDF]

Philos Trans A Math Phys Eng Sci, 2019
Donné AJH.
europepmc   +1 more source