1 citations · 1 across the 12 of their papers we have counts for
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Assessing the effect of error field penetration during plasma current ramp-up in the DIII-D tokamak
C. F. B. Zimmermann, E. M. Bursch, C. Paz-Soldan +4
This work provides evidence that established error field penetration threshold scalings remain applicable during plasma current ramp-up. In dedicated DIII-D experiments with impose…
The Negative Triangularity Tokamak Path for Fusion Pilot Plants: Experimental Progress and Future Prospects
K. E. Thome, M. E. Austin, S. Coda +8
This paper reviews the experimental progress of negative triangularity (NT), a tokamak configuration where the poloidal cross-section is a reversed-D shape compared to the conventi…
Feasibility of a Flexible, Hybrid Tokamak-Stellarator Experiment using an Axisymmetric Dipole Coil Array
Jacob Halpern, Mohammed Haque, Elizabeth Paul +5
We demonstrate the design of a flexible, university-scale hybrid tokamak-stellarator experiment based on an axisymmetric array of planar HTS dipole coils. Because the coil array ha…
Coordinate-invariant flux-surface Fourier analysis in tokamaks
Matthew Pharr, Evan Bursch, Nikolas Logan +3
The Fourier spectra of resonant quantities in tokamaks depend on the choice of magnetic coordinates, and an area weighting of the Fourier integrand preserves the resonant coefficie…
Compact Experimental Negative TriAngUlarity Reactor (CENTAUR): A design study for a compact, affordable breakeven tokamak
The CENTAUR Collaboration, Samuel W. Freiberger, Evan Bursch +33
This work presents the compact experimental negative triangularity reactor (CENTAUR), a low overnight cost, high-field tokamak, breakeven reactor design, achieving a predicted tota…
Mechanism Behind the Recombination Requirement for Benign Termination of Relativistic Electron Beams
George Su, Carl Friedrich Benedikt Zimmermann, Carlos Paz-Soldan +2
We present a first-principles explanation of the recombination requirement for benign termination of relativistic electron (RE) beams in tokamaks. Kinetic modeling including neutra…
Energy Confinement Time Scaling Law Derived from Paz-Soldan NF 2024
P. Lunia, A. O. Nelson, C. Paz-Soldan
Results from C. Paz-Soldan et al 2024 Nucl. Fusion 64 094002 demonstrate encouraging energy confinement properties for the negative triangularity scenario, similar to or exceeding…
First Demonstration of Resonant Pitch-Angle Scattering of Relativistic Electrons by Externally-Launched Helicon Waves
H. Choudhury, A. Battey, C. Paz-Soldan +12
Helicon waves satisfying the normal wave-particle cyclotron resonance are observed to limit the growth and maximum energy of relativistic electrons (REs) in low-density Ohmic DIII-…
Electromagnetic System Conceptual Design for a Negative Triangularity Tokamak
Sophia Guizzo, Mikhail A. Drabinskiy, Christopher Hansen +7
Negative triangularity (NT) tokamak configurations have several key benefits including sufficient core confinement, improved power handling, and reduced edge pressure gradients tha…
Characterizing the negative triangularity reactor core operating space with integrated modeling
H. S. Wilson, A. O. Nelson, J. McClenaghan +3
NT experiments have demonstrated core performance on par with positive triangularity (PT) H-mode without edge-localized modes (ELMs), encouraging further study of an NT reactor cor…
MANTA: A Negative-Triangularity NASEM-Compliant Fusion Pilot Plant
MANTA Collaboration, G. Rutherford, H. S. Wilson +38
The MANTA (Modular Adjustable Negative Triangularity ARC-class) design study investigated how negative-triangularity (NT) may be leveraged in a compact, fusion pilot plant (FPP) to…
Highest Fusion Performance without Harmful Edge Energy Bursts in Tokamak
SangKyeun Kim, Ricardo Shousha, SeongMoo Yang +20
The path of tokamak fusion and ITER is maintaining high-performance plasma to produce sufficient fusion power. This effort is hindered by the transient energy burst arising from th…
Assessment of vertical stability for negative triangularity pilot plants
S. Guizzo, A. O. Nelson, C. Hansen +2
Negative triangularity (NT) tokamak configurations may be more susceptible to magneto-hydrodynamic instability, posing challenges for recent reactor designs centered around their f…
Implications of Vertical Stability Control on the SPARC Tokamak
A. O. Nelson, D. T. Garnier, D. J. Battaglia +5
To achieve its performance goals, SPARC plans to operate in equilibrium configurations with a strong elongation of , destabilizing the vertical inst…