Results 81 to 90 of about 2,075 (173)

Suppressing trapped-electron-mode-driven turbulence via optimization of three-dimensional shaping

Nuclear Fusion
Turbulent transport driven by trapped electron modes (TEMs) is believed to drive significant heat and particle transport in quasihelically symmetric stellarators.
J.M. Duff, B.J. Faber, C.C. Hegna, M.J. Pueschel, P.W. Terry   +4 more
doaj   +1 more source

Existence of weakly quasisymmetric magnetic fields without rotational transform in asymmetric toroidal domains. [PDF]

Sci Rep, 2022
Sato N.
europepmc   +1 more source

Global stellarator coil optimization with quadratic constraints and objectives

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   +1 more source

Reactor-scale stellarators with force and torque minimized dipole coils

Nuclear Fusion
In this work, we utilize new coil objectives for stellarator optimization with autodifferentiation, including pointwise and net coil–coil forces and torques. We use these methods to perform the first large-scale optimization of planar dipole coil arrays,
Alan A. Kaptanoglu, Alexander Wiedman, Jacob Halpern, Siena Hurwitz, Elizabeth J. Paul, Matt Landreman   +5 more
doaj   +1 more source

Forced flow cryogenic cooling in fusion devices: A review. [PDF]

Heliyon, 2021
Vaghela H, Lakhera VJ, Sarkar B.
europepmc   +1 more source

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   +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

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

Recent progress in Chinese fusion research based on superconducting tokamak configuration. [PDF]

Innovation (Camb), 2022
Zheng J, Qin J, Lu K, Xu M, Duan X, Xu G, Hu J, Gong X, Zang Q, Liu Z, Wang L, Ding R, Chen J, Li P, Xue L, Cai L, Song Y.   +16 more
europepmc   +1 more source