The fixed boundary plasma equilibrium basis for a one Gigawatt electric stellarator power plantA 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 by Gauss Fusion…Samuel A. Lazerson, António J. Coelho, Dana Douqa et al.·Jul 10, 2026SaveLearn
Tens of MeV, collimated, bright fluxes of protons from ordered nano-structured targets in ultra-relativistic laser-matter interactionLaser-driven proton acceleration from nanostructured solid targets has been extensively studied, yet its performance under realistic temporal contrast conditions at petawatt-class facilities remains…Sagar Dam, Stefania Ionescu, Jian Fuh Ong et al.·Jul 10, 2026SaveLearn
Comparison of DBS measurements of turbulence spectra by vertical-displacement and poloidal-angle scans using the Scotty synthetic diagnosticDoppler backscattering (DBS) measures electron density fluctuations. The measured wavenumber is typically varied by changing the probe beam poloidal launch angle. As most DBS systems are unable to…Y. T. Tan, V. Hall-Chen, T. Rhodes·Jul 10, 2026SaveLearn
Implicit discretization schemes for full-kinetic ion and drift-kinetic electron simulationsWe present a new electromagnetic plasma simulation model with full-kinetic ions and drift-kinetic electrons. This model (termed as FIDES) solves the electric field using the implicit perpendicular…Zilong Li, Yang Chen, Haotian Chen et al.·Jul 10, 2026SaveLearn
Optical Emission Spectroscopy Measurements of keV Apparent Ion Temperatures in Avalanche Energy's Centrifugal Mirror MachineNewly formed ions in E × B devices are rapidly accelerated by strong radial electric fields and execute large cycloidal orbits in the presence of an axial magnetic field. At locations where…M. Affolter, E. C. Hayes, A. Helson et al.·Jul 10, 2026SaveLearn
Dynamics of an impulse dielectric barrier discharge in pure ammonia gas using electrical characteristics and imaging analysisA glow nanosecond discharge from a plane-to-plane impulse dielectric barrier discharge (iDBD) with ammonia gas has been characterised by employing fast imaging and electrical diagnostics. More…Ronny Jean-Marie-Desiree, Aymane Najah, Ludovic De Poucques et al.·Jul 10, 2026SaveLearn
Precision mapping of laser-driven magnetic fields and their evolution in high-energy-density plasmasMagnetic fields generated by the Rayleigh-Taylor instability were measured in laser-accelerated planar foils using ultrafast proton radiography. Thin plastic foils were irradiated with 4-kJ,…Lan Gao, PM Nilson, IV Igumenshchev et al.·Jul 9, 2026SaveLearn
Sensitivity of a low-shear heliotron configuration to localised ferrite-steel perturbationsThe influence of ferritic steel on low-shear stellarator/heliotron magnetic configurations is investigated for the Heliotron J device using a point dipole magnetisation model. By numerically…A. Matsuyama, F. Tanji, Y. Nakamura et al.·Jul 9, 2026SaveLearn
Plasma-state metasurfaces for ultra-intensive field manipulationHigh-power lasers offer ultrahigh intensities for plasma interactions, but they lack advanced techniques to control the properties of the fields, because no optical elements could withstand their…Zi-Yu Chen, Hao Xu, Jiao Jia et al.·Jul 9, 2026SaveLearn
TORAX: A Fast and Differentiable Tokamak Transport Simulator in JAXWe present TORAX, a new, open-source, differentiable tokamak core transport simulator implemented in Python using the JAX framework. TORAX solves the coupled equations for ion heat transport,…Jonathan Citrin, Ian Goodfellow, Akhil Raju et al.·Jul 9, 2026SaveLearn
Analysis of collisional and facility effects in a magnetic nozzle plasma expansionAn axisymmetric, quasineutral three-fluid model is proposed to study the plasma expansion in a magnetic nozzle under the presence of neutrals coming either from the plasma source or as an homogeneous…Manuel Cortés-Hernán, Mario Merino, Diego García-Lahuerta et al.·Jul 8, 2026SaveLearn
Observation of Self-Similarity in the Magnetic Fields Generated by the Ablative Nonlinear Rayleigh-Taylor InstabilityMagnetic fields generated by the nonlinear Rayleigh-Taylor growth of laser-seeded three-dimensional broadband perturbations were measured in laser-accelerated planar targets using ultrafast proton…L. Gao, P. M. Nilson, I. V. Igumenschev et al.·Jul 8, 2026SaveLearn
Counter-streaming heat-flux closure for electron-only collisionless magnetic reconnectionIn electron-only collisionless magnetic reconnection (MR), a regime of growing importance in turbulent space plasmas, electrons develop strongly non-Maxwellian distributions that invalidate…Madox C. McGrae-Menge, Jacob R. Pierce, Maria Almanza et al.·Jul 8, 2026SaveLearn
Terahertz Generation through Photon Deceleration of Long-Wavelength Infrared Laser Pulses in PlasmaEfficient terahertz (THz) generation with high field amplitude and pulse energy is studied through the interaction of a single-color long-wavelength infrared (LWIR) laser pulse with gaseous targets.…Srimanta Maity·Jul 8, 2026SaveLearn
Magnetic field generation by the Rayleigh-Taylor instability in laser-driven planar plastic targetsMagnetic fields generated by the Rayleigh-Taylor instability were measured in laser-accelerated planar foils using ultrafast proton radiography. Thin plastic foils were irradiated with 4-kJ,…L Gao, PM Nilson, IV Igumenschev et al.·Jul 8, 2026SaveLearn
Ultrafast proton radiography of the magnetic fields generated by a laser-driven coil currentMagnetic fields generated by a current flowing through a U-shaped coil connecting two copper foils were measured using ultrafast proton radiography. Two 1.25 kJ, 1-ns laser pulses propagated…Lan Gao, Hantao Ji, Gennady Fiksel et al.·Jul 8, 2026SaveLearn
A Variational Framework for Guiding-Center Kinetics, Anisotropic Equilibria, and Quasisymmetry in StellaratorsWe present a variational framework in which (i) guiding-center kinetic theory, (ii) macroscopic force balance with gyrotropic/anisotropic pressure, and (iii) quasisymmetry (QS) constraints appear as…Lanke Fu, Amitava Bhattacharjee·Jul 8, 2026SaveLearn
Evolution of SPI-induced disruptions in ASDEX UpgradeDisruptions are a major concern for future fusion reactors based on the tokamak principle. To ensure machine protection, the thermal loads and vessel forces that arise during disruptions have to be…P. Heinrich, G. Papp, S. Jachmich et al.·Jul 8, 2026SaveLearn
Studies of laser stimulated photodetachment from nanoparticles for particle charge measurementsDetermining nanoparticle charge is more challenging than that for microparticles due to change in the particle size during the synthesis substantial plasma property variations, and difficulties in…Y. A. Ussenov, M. N. Shneider, S. Yatom et al.·Jul 8, 2026SaveLearn
Spatiotemporal Dynamics of Hydrogen Plasma Smelting Reduction of iron ore: A Multi-Species Diagnostic ApproachPlasma-based mineral-processing routes, such as hydrogen plasma smelting reduction (HPSR), which converts iron-ore fines directly to liquid metal in a single scalable step are commonly modeled by…Ram Krushna Mohanta, Kai Lopez, Sai Vishnu Korsipati et al.·Jul 7, 2026SaveLearn
Exact 1D Nonlinear Solutions for Proton-Driven Plasma Wakefields: Benchmarking Against AWAKE Data EnvelopesThe analytical modeling of a plasma wakefield driven by a relativistic proton beam is an element in optimizing advanced plasma-based acceleration schemes. In this work, we present a 1D nonlinear…D. Tsiklauri·Jul 7, 2026SaveLearn
Absolute Calibration of a Time-Resolved High Resolution X-ray Spectrometer for the National Ignition Facility (invited)A high resolution, Diagnostic Instrument Manipulator (DIM)-based x-ray Bragg crystal spectrometer has been calibrated for and deployed at the National Ignition Facility (NIF) to diagnose plasma…Lan Gao, B. F. Kraus, K. W. Hill et al.·Jul 7, 2026SaveLearn
Towards joint optimization of stellarator coils and support structuresThe support structure is an integral part of the design of nuclear fusion reactors, especially 3D stellarator devices. A practical reactor's coils and support structures must have three competing…Lanke Fu, Alan A. Kaptanoglu·Jul 7, 2026SaveLearn
Mega-Gauss Plasma Jet Creation Using a Ring of Laser BeamsUsing 20 OMEGA laser beams at the Laboratory for Laser Energetics, University of Rochester, to irradiate a flat plastic target in a hollow ring configuration, we created supersonic cylindrical stable…L. Gao, E. Liang, Y. Lu et al.·Jul 7, 2026SaveLearn
Hot Spot Evolution Measured by High-Resolution X-Ray Spectroscopy at the National Ignition FacilityEvolution of the hot spot plasma conditions was measured using high-resolution x-ray spectroscopy at the National Ignition Facility (NIF). The capsules were filled with DD gas with trace levels of…Lan Gao, B. F. Kraus, K. W. Hill et al.·Jul 7, 2026SaveLearn