142 citations · 231 across the 12 of their papers we have counts for
12 papers
The fixed boundary plasma equilibrium basis for a one Gigawatt electric stellarator power plant
Samuel A. Lazerson, António J. Coelho, Dana Douqa +9
A fixed boundary stellarator equilibrium capable of producing 3 GW of fusion power (1 GW-electric) is presented as the design basis for the GIGA fusion power plant being developed…
Harnessing Toroidal Neutral Flows to Enhance Divertor Particle Exhaust
M. Moscheni, A. Herrmann, J. D. Lore +5
In 1991 Reiter et al. (1991 Plasma Phys. Control. Fusion 33 1579) considered the onerous exhaust requirements of ITER, and wrote: "The vacuum pumping problem of a fusion reactor wi…
Multi-Machine Scaling Laws for Fuel and Impurity Puffing Rates Sufficient for Detachment Access: a Systematic Review of Magnetic Confinement Fusion Devices
M. Moscheni, A. Herrmann, R. Kembleton +8
An open-source database of 457 experimental and numerical entries representing 32 machinesincluding tokamaks, stellarators, and linear plasma devicesis assembled. From this d…
Physics-regularized neural network of the ideal-MHD solution operator in Wendelstein 7-X configurations
Andrea Merlo, Daniel Böckenhoff, Jonathan Schilling +3
The computational cost of constructing 3D magnetohydrodynamic (MHD) equilibria is one of the limiting factors in stellarator research and design. Although data-driven approaches ha…
On the role of density fluctuations in the core turbulent transport of Wendelstein 7-X
D. Carralero, T. Estrada, E. Maragkoudakis +19
A recent characterization of core turbulence carried out with a Doppler reflectometer in the optimized stellarator Wendelstein 7-X (W7-X) found that discharges achieving high ion t…
Proof of concept of a fast surrogate model of the VMEC code via neural networks in Wendelstein 7-X scenarios
Andrea Merlo, Daniel Böckenhoff, Jonathan Schilling +7
In magnetic confinement fusion research, the achievement of high plasma pressure is key to reaching the goal of net energy production. The magnetohydrodynamic (MHD) model is used t…
Validating the ASCOT modelling of NBI fast ions in Wendelstein 7-X stellarator
S. Äkäslompolo, P. Drewelow, Y. Gao +37
The first fast ion experiments in Wendelstein 7-X were performed in 2018. They are one of the first steps in demonstrating the optimised fast ion confinement of the stellarator. Th…
Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes
Michael D. J. Cole, Robert Hager, Toseo Moritaka +5
XGC (X-point Gyrokinetic Code) is a whole-volume, total-f gyrokinetic particle-in-cell code developed for modelling tokamaks. In recent work, XGC has been extended to model more ge…
From tokamaks to stellarators: understanding the role of 3D shaping
Samuel A. Lazerson, John C. Schmitt
In this work, the role which three-dimensional shaping plays in the generation of rotational transform in toroidal magnetically confinement devices is explored. The susceptance mat…
High- equilibrium and ballooning stability of the low aspect ratio CNT stellarator
K. C. Hammond, S. A. Lazerson, F. A. Volpe
The existence and ballooning-stability of low aspect ratio stellarator equilibria is predicted for CNT with the aid of 3D numerical tools. In addition to having a low aspect ratio,…
TEM turbulence optimisation in stellarators
J. H. E. Proll, H. E. Mynick, P. Xanthopoulos +2
With the advent of neoclassically optimised stellarators, optimising stellarators for turbulent transport is an important next step. The reduction of ion-temperature-gradient-drive…
Computation of multi-region relaxed magnetohydrodynamic equilibria
S. R. Hudson, R. L. Dewar, G. Dennis +4
We describe the construction of stepped-pressure equilibria as extrema of a multi-region, relaxed magnetohydrodynamic (MHD) energy functional that combines elements of ideal MHD an…