Multi-objective Bayesian optimisation of a double-layer target for quasi-monoenergetic TNSA protonsWe carry out a six-parameter multi-objective Bayesian optimisation of a carbon--hydrogen double-layer target for target-normal-sheath proton acceleration. The campaign consists of 80 two-dimensional…Chengqi-Zhang, Yang He, Mamat Ali Bake et al.·Jun 22, 2026SaveLearn
Evaluation of spatiotemporal tungsten density profiles using Unresolved Transition Arrays in the Large Helical DeviceTungsten spectroscopic studies have been conducted in the Large Helical Device with a pellet injection technique. Spatiotemporal profiles of tungsten density were evaluated using a space-resolved…R. Nishimura, T. Oishi, I. Murakami et al.·Jun 22, 2026SaveLearn
Dephasingless laser wakefield acceleration in a plasma waveguideLaser wakefield accelerators (LWFAs) provide extremely large accelerating gradients for compact electron accelerators and photon sources but are limited by dephasing, where trapped electrons outrun…J. P. Palastro, K. G. Miller, C. D. Arrowsmith et al.·Jun 22, 2026SaveLearn
Tearing Instability in Gyrotropic MHD: Effects of Equilibrium Pressure AnisotropyWeakly collisional plasmas are widespread in astrophysics and can sustain pressure anisotropy, yet most analytical tearing-mode scalings assume an isotropic equilibrium. We develop a linear theory of…Grzegorz Kowal, Gabriel L. Ferreira-Santos, Diego A. Falceta-Gonçalves·Jun 21, 2026SaveLearn
Characterization of Numerical Dissipation in Simulations of Magnetohydrodynamic TurbulenceComprehensive characterization of numerical dissipation is essential for high-fidelity simulations of magnetohydrodynamic (MHD) turbulence. In this work, we present an a posteriori framework for…Yuyang Hua, Zhonghai Zhao, Bin Qiao·Jun 21, 2026SaveLearn
Resonant Pitch-Angle Scattering Of Runaway-Electrons by Externally-launched Helicon Waves in the DIII-D TokamakResonant wave-particle interactions between externally launched helicon waves (also known as whistler waves) and runaway electrons (REs) have been demonstrated on the DIII-D tokamak. In this work we…Hari Choudhury, Jeffrey Lestz, Carlos Paz-Soldan et al.·Jun 20, 2026SaveLearn
Plasma turbulence driven by wave-hole interactionWave-obstacle diffraction is, par excellence, an example of transition to nonlinearity, generating turbulence and complexity in fluids. We present an idealized kinetic plasma regime capturing this…Gabriele Celebre, Mario Imbrogno, Sergio Servidio et al.·Jun 20, 2026SaveLearn
Plasma Flow Generation and Particle Acceleration from Expanding Magnetic BubblesImpulsive plasma dynamics in the laboratory are often driven by rising electric currents, yet their quantitative plasma response has not been well established. By means of fully kinetic…Yang Zhang, Brandon K. Russell, Geoffrey Pomraning et al.·Jun 20, 2026SaveLearn
Focused Coherent Microwave Scattering for Spatially Resolved Electron Number Density DiagnosticsThis work provides an initial demonstration of Focused Coherent Microwave Scattering (F-CMS) diagnostics technique, an extension of the conventional Coherent Microwave Scattering (CMS) technique that…H. Jenrow, K. Reindersma, A. Shashurin·Jun 19, 2026SaveLearn
Linear Tearing Growth and Onset of Relativistic Magnetic Reconnection in the Presence of Shear Flows and a Guide FieldIt has been shown in non-relativistic tearing theory that shear flows will slow the linear phase of tearing instability and can delay onset of magnetic reconnection. We find using kinetic…Sarah Peery, Yi-Hsin Liu·Jun 19, 2026SaveLearn
Geometric numerical discretization of a quasineutral hybrid model of drift-kinetic electrons and fully kinetic ionsWe extend the geometric electromagnetic particle-in-cell (PIC) framework, GEMPICX, to solve the quasineutral hybrid Vlasov-Maxwell equations with drift-kinetic electrons and fully kinetic ions. A…Nishant Narechania, Guo Meng, Emil Poulsen et al.·Jun 19, 2026SaveLearn
Geometric numerical discretization of electromagnetic quasineutral modelsIn this work, the geometric electromagnetic Particle-in-Cell (PIC) framework, GEMPICX, is extended to solve the quasineutral, fully kinetic Vlasov-Maxwell equations on dual grids using mimetic finite…Nishant Narechania, Emil Poulsen, Eric Sonnendrucker·Jun 19, 2026SaveLearn
Semi-local Floquet theory for active azimuthal magnetic modulation of Hall-thruster high-frequency instabilitiesA semi-local Floquet extension of a uniform-field kinetic electron drift instability (EDI) dispersion relation is developed to assess prescribed azimuthal magnetic-field modulation as a linear…Yinjian Zhao, Changzheng Hu·Jun 19, 2026SaveLearn
Effect of Noise on Spatio-Temporal Evolution of Current Filamentation Instability in Relativistic Beam-Plasma SystemsThe spatio-temporal evolution of the current filamentation instability in a relativistic beam--plasma system is studied analytically and with two-dimensional particle-in-cell simulations. A partial…Thulasidharan K, Vishwa Bandhu Pathak·Jun 19, 2026SaveLearn
Test Particle Study of EDI Driven Electron Transport in a Hall Thruster Using PIC Derived Electric FieldsElectron transport in a Hall thruster is investigated at the test particle level using prescribed electric fields derived from the electron drift instability (EDI) resolving three dimensional…Zhongping Zhao, Kunpeng Zhong, Yinjian Zhao·Jun 19, 2026SaveLearn
Wave-Energy Partition Governs Weak Collisional Damping in Cold PlasmasWeak dissipation can control wave propagation, mode competition, and instability thresholds in plasmas, yet the physical origin of large branch-to-branch differences in collisional damping is often…Yanzeng Zhang, Xianzhu Tang, Ge Zhuang·Jun 19, 2026SaveLearn
Interfacial transport driven by electrohydrodynamic instability at the plasma-liquid interfaceInterfacial dynamics play a central role in transport processes across the plasma-liquid interface. While the strong electric field in the plasma sheath can destabilize the liquid surface and induce…Seungjun Lee, Woojin Nam, Gunsu Yun·Jun 19, 2026SaveLearn
Equilibrium of a simplified coil quasi-axisymmetric stellarator: Free boundary approachInspired by the design for the simple Columbia Non-neutral Torus (CNT) proposed by Pedersen and Boozer (Phys. Rev. Lett. 88 205002(2002)), and later revisited by Yu et al. (J. Plasma Phys. 88…Kassandra Salguero-Martínez, J. Julio E. Herrera-Velázquez·Jun 19, 2026SaveLearn
Influence of Cathode Boundary and Initial Electron Swarm Width on Electron Swarm Parameter Determination with the Pulsed Townsend ExperimentThe Pulsed Townsend experiment enables the extraction of relevant electron transport properties in different gases such as the electron drift velocity W (or equivalently the mobility μ), the…Mücahid Akbas·Jun 19, 2026SaveLearn
GyroSwin: 5D Surrogates for Gyrokinetic Plasma Turbulence SimulationsNuclear fusion plays a pivotal role in the quest for reliable and sustainable energy production. A major roadblock to viable fusion power is understanding plasma turbulence, which significantly…Fabian Paischer, Gianluca Galletti, William Hornsby et al.·Jun 19, 2026SaveLearn
Phase-Space Energy Transfer of Wave-Particle Interactions using the Field-Particle Correlation Technique and Linear Plasma Theory with JET-PLUMEThe collisionless transfer of energy between fields and particles through wave-particle interactions is a fundamental process in space plasmas but remains incompletely characterized because many…Collin R. Brown, Gregory G. Howes, Kristopher G. Klein et al.·Jun 18, 2026SaveLearn
Absolute Radar-REMPI via Two-Color REMPI and Absolutely Calibrated CMS for Diagnostics of Species in Gaseous MixturesThis work demonstrates the initial development of the Absolute Radar-REMPI diagnostic technique, a development of the Radar-REMPI technique that provides an approach for absolutely calibrated…Mathis Malaussena, Liam West, Kenneth Reindersma et al.·Jun 18, 2026SaveLearn
Impact of energetic alpha particles on core turbulence in an ARC-class fusion power plantIn this work, we investigate the impact of fusion-born alpha particles on core turbulence and transport in the ARC tokamak fusion power plant using linear and nonlinear gyrokinetic CGYRO simulations.…J. Hall, N. T Howard, P. Rodriguez-Fernandez et al.·Jun 18, 2026SaveLearn
General-relativistic and non-ideal radiative cooling in neutron star magnetospheresRadiation reaction cooling plays an important role in describing the extreme plasma conditions found in the magnetospheres of astrophysical compact objects. Strong electromagnetic fields,…João Joaquim, Francisco Assunção, Pablo J. Bilbao et al.·Jun 18, 2026SaveLearn
Non-Ambipolarity of Microturbulent TransportWhen exact magnetic surfaces are assumed to exist, the gyrokinetic theory of microturbulence gives the same radial transport for ions and electrons. But, exact magnetic surfaces do not exist in the…Allen H Boozer·Jun 18, 2026SaveLearn