32 citations · 34 across the 6 of their papers we have counts for
7 papers
Rapid Vacuum Response Calculations for Non-axisymmetric Plasma Geometries
Jacob Halpern, Nikolas Logan, Carolin Nührenberg +2
We present a fast, open-source calculation of the vacuum response matrix and surface inductance in non-axisymmetric geometries capable of running with up to 10^5 boundary points in…
Feasibility of a Flexible, Hybrid Tokamak-Stellarator Experiment using an Axisymmetric Dipole Coil Array
Jacob Halpern, Mohammed Haque, Elizabeth Paul +6
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…
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…
Determining the Validity of Tokamak Perturbed Equilibrium Modeling Using Nonlinear Equilibria
J. Halpern, N. C. Logan, E. Paul +1
The prediction of perturbed equilibrium models for tokamaks with small 3D fields is strongly dependent on which reference frame for axisymmetry is assumed - for example, the toroid…
Enhancing Stellarator Accessibility through Port Size Optimization
A. Baillod, E. J. Paul, T. Elder +1
Access to the plasma chamber in a stellarator reactor is essential for maintenance and diagnostics. However, the complex geometry of stellarator coils, often characterized by their…
Reactor-scale stellarators with force and torque minimized dipole coils
Alan A. Kaptanoglu, Alexander Wiedman, Jacob Halpern +3
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 t…
Space-charge-limited current density for nonplanar diodes with monoenergetic emission using Lie-point symmetries
N. R. Sree Harsha, Jacob M. Halpern, Adam M. Darr +1
Understanding space-charge limited current density (SCLCD) is fundamentally and practically important for characterizing many high-power and high-current vacuum devices. Despite th…