Energy exchange between electrons and ions in ion temperature gradient turbulenceMicroturbulence in magnetic confined plasmas contributes to energy exchange between particles of different species as well as the particle and heat fluxes. Although the effect of turbulent energy…T. Kato, H. Sugama, T. -H. Watanabe et al.·Feb 20, 2024SaveLearn
Pulsed Complex Plasma in MicrogravityA new experimental method for creating void-free complex (``dusty'') plasmas under microgravity conditions is presented. The method is based on a pulsed operation mode of a four-channel…C. A. Knapek, D. P. Mohr, P. Huber·Feb 20, 2024SaveLearn
On reduced modeling of the modulational dynamics in magnetohydrodynamicsThis paper explores structure formation in two-dimensional magnetohydrodynamic (MHD) turbulence as a modulational instability (MI) of turbulent fluctuations. We focus on the early stages of structure…S. Jin, I. Y. Dodin·Feb 20, 2024SaveLearn
Observation of astrophysically-relevant superadiabaticity in a plasma confined by a dipole magnetThe polytropic index of electrons in a magnetized plasma is experimentally investigated in the presence of heating and anisotropic work done, incorporating the effective dimensionality arising from…Ayesha Nanda, Sudeep Bhattacharjee·Feb 19, 2024SaveLearn
Higher-order nonequilibrium term: Effective power density quantifying evolution towards or away from local thermodynamic equilibriumA common approach to assess the nature of energy conversion in a classical fluid or plasma is to compare power densities of the various possible energy conversion mechanisms. A forefront research…M. Hasan Barbhuiya, Paul A. Cassak, Subash Adhikari et al.·Feb 19, 2024SaveLearn
Signature of inertia on light dragging in rotating plasmasThe signature of light dragging in a rotating unmagnetized plasma is studied analytically. In contrast with previous work which focused exclusively on the drag effects arising from rigid rotation, we…Julien Langlois, Renaud Gueroult·Feb 19, 2024SaveLearn
Modification of the resistive tearing instability with Joule heating by shear flowWe investigate the influence of background shear flow on linear resistive tearing instabilities with Joule heating for two compressible plasma slab configurations: a Harris current sheet and a…Jordi De Jonghe, Rony Keppens·Feb 19, 2024SaveLearn
Intrinsic femtosecond structure of extreme contrast harmonic pulses: influence on relativistic laser-solid interactionsExtreme intensity contrast is considered essential for ultraintense, femtosecond laser excitation of solid targets, in particular for studies with structured or ultra-thin targets. Second-harmonic…C. Aparajit, Anandam Choudhary, Ankit Dulat et al.·Feb 17, 2024SaveLearn
On the importance of parallel magnetic-field fluctuations for electromagnetic instabilities in STEP[ABRIDGED] This paper discusses the importance of parallel perturbations of the magnetic-field in gyrokinetic simulations of electromagnetic instabilities and turbulence at mid-radius in the burning…D. Kennedy, C. M. Roach, M. Giacomin et al.·Feb 16, 2024SaveLearn
Distinct transient structural rearrangement of ionized water revealed by XFEL X-ray pump X-ray probe experimentUsing X-ray free electron laser (XFEL) radiation to conduct an X-ray pump X-ray probe experiment, we studied strongly ionized water as part of our ongoing work on radiation damage. After irradiance…Michal Stransky, Thomas J. Lane, Alexander Gorel et al.·Feb 16, 2024SaveLearn
Uncertainty analysis of the plasma impedance probeA plasma impedance probe (PIP) is a type of in-situ, radio-frequency (RF) probe that is traditionally used to measure plasma properties (e.g. density) in low-density environments such as the…John W. Brooks, Matthew C. Paliwoda·Feb 15, 2024SaveLearn
On the role of electromagnetic phenomena in some atmospheric processesThe crucial part of electromagnetic phenomena in many atmospheric processes is verified by systematized data. The multilayered charged system of clouds represents some dynamically equilibrium…S. N. Artekha, A. V. Belyan·Feb 15, 2024SaveLearn
Dynamics and precise control of fluid V-states using an electron plasmaAn electron plasma can be confined for a theoretically infinite time in a Penning-Malmberg trap, a linear, azimuthally-symmetric magneto-electrostatic device where upon suitable conditions (high…Giancarlo Maero, Francesca Ferrero, Massimiliano Romé·Feb 15, 2024SaveLearn
Advanced fuel fusion, phase space engineering, and structure-preserving geometric algorithmsNon-thermal advanced fuel fusion trades the requirement of a large amount of recirculating tritium in the system for that of large recirculating power. Phase space engineering technologies utilizing…Hong Qin·Feb 14, 2024SaveLearn
Anomalous conductivity due to relativistic Landau quantizationWe use a recently developed kinetic model derived from the Dirac equation, in order to study electromagnetic wave propagation in superstrong magnetic fields, such as in magnetars, where relativistic…Gert Brodin, Haidar Al-Naseri·Feb 14, 2024SaveLearn
Active Disruption Avoidance and Trajectory Design for Tokamak Ramp-downs with Neural Differential Equations and Reinforcement LearningThe tokamak offers a promising path to fusion energy, but plasma disruptions pose a major economic risk, motivating considerable advances in disruption avoidance. This work develops a reinforcement…Allen M. Wang, Oswin So, Charles Dawson et al.·Feb 14, 2024SaveLearn
Development of a gyrokinetic-MHD energetic particle simulation code Part I: MHD versionA new magnetohydrodynamics (MHD) code based on initial value approach, GMECI, has been developed for simulating various MHD physics in tokamak plasmas, as the MHD foundation of the gyrokinetic-MHD…P. Y. Jiang, Z. Y. Liu, S. Y. Liu et al.·Feb 14, 2024SaveLearn
On the Thomas-Fermi model: Gabor J. Kalman's contribution and numerical approximationsIn this article, we would like to pay tribute to Gabor Kalman, outlining his contribution to a model widely used in dense plasma physics: the high-temperature Thomas-Fermi model. The approach of…Jean-Christophe Pain·Feb 14, 2024SaveLearn
Hyperballistic transport in dense systems of charged particles under ac electric fieldsThe Langevin equation is ubiquitously employed to numerically simulate plasmas, colloids and electrolytes. However, the usual assumption of white noise becomes untenable when the system is subject to…Daniele Gamba, Bingyu Cui, Alessio Zaccone·Feb 13, 2024SaveLearn
A Physics-Informed Deep Learning Description of Knudsen Layer Reactivity ReductionA physics-informed neural network (PINN) is used to evaluate the fast ion distribution in the hot spot of an inertial confinement fusion target. The use of tailored input and output layers to the…Christopher J. McDevitt, Xian-Zhu Tang·Feb 13, 2024SaveLearn
Plasma-wall interaction in laser inertial fusion reactors: novel proposals for radiation tests of first wall materialsDry-wall laser inertial fusion (LIF) chambers will have to withstand strong bursts of fast charged particles which will deposit tens of kJ m-2 and implant more than 1018 particles m-2…J. Alvarez Ruiz, A. Rivera, K. Mima et al.·Feb 13, 2024SaveLearn
Data efficiency and long term prediction capabilities for neural operator surrogate models of core and edge plasma codesSimulation-based plasma scenario development, optimization and control are crucial elements towards the successful deployment of next-generation experimental tokamaks and Fusion power plants. Current…N. Carey, L. Zanisi, S. Pamela et al.·Feb 13, 2024SaveLearn
Simulating vacuum arc initiation by coupling emission, heating and plasma processesVacuum arcing poses significant challenges for high-field vacuum devices, underscoring the importance of understanding it for their efficient design. A detailed description of the physical mechanisms…Roni Koitermaa, Andreas Kyritsakis, Tauno Tiirats et al.·Feb 13, 2024SaveLearn
Stellarators with enhanced tritium confinement and edge radiation controlA stellarator design is described with the purpose of achieving three goals: (1) Enhance the confinement time of tritium. (2) Have a sufficient density of high-Z impurities to radiate the thermal…Allen H Boozer·Feb 12, 2024SaveLearn
Relaxation of weakly collisional plasma: continuous spectra, discrete eigenmodes, and the decay of echoesThe relaxation of a weakly collisional plasma, which is of fundamental interest to laboratory and astrophysical plasmas, can be described by the Boltzmann-Poisson equations with the Lenard-Bernstein…Uddipan Banik, Amitava Bhattacharjee·Feb 12, 2024SaveLearn