Neutral pressure measurement in TCV tokamak using ASDEX-type pressure gaugesProbing the neutral gas distribution at the edge of magnetic confinement fusion devices is critical for plasma exhaust studies. In the TCV tokamak, a set of ASDEX-type hot ionization pressure gauges…G. Sun, H. Reimerdes, H. Elaian et al.·Oct 3, 2024SaveLearn
Evaluation of tungsten influx rate using line emissions from W5+ ions in EAST TokamakThe S/XB ratios (ionization per emitted photon) allow one to relate spectroscopic emissivity measurements to the impurity influx from a localized source. In this work, we determine the tungsten…Fengling Zhang, Darío Mitnik, Ling Zhang et al.·Oct 3, 2024SaveLearn
Pattern formation and spatiotemporal chaos in relativistic degenerate plasmasWe numerically study the nonlinear interactions of high-frequency circularly polarized electromagnetic (EM) waves and low-frequency electron-acoustic (EA) density perturbations driven by the EM wave…S. Das Adhikary, A. P. Misra·Oct 3, 2024SaveLearn
Predicting Thermal Stress and Failure Risk in Monoblock Divertors Using 2D Finite Difference Modelling and Gradient Boosting Regression for Fusion Energy ApplicationsThis study presents a combined approach using a 2D finite difference method and Gradient Boosting Regressor (GBR) to analyze thermal stress and identify potential failure points in monoblock…Ayobami Daramola·Oct 3, 2024SaveLearn
Non-perturbative guiding center model for magnetized plasmasPerturbative guiding center theory adequately describes the slow drift motion of charged particles in the strongly-magnetized regime characteristic of thermal particle populations in various magnetic…J. W. Burby, I. A. Maldonado, M. Ruth et al.·Oct 3, 2024SaveLearn
Ion-Acoustic Wave Dynamics in a Two-Fluid PlasmaPlasma is a medium containing free electrons and cations, where each particle group behaves as a conducting fluid with a single velocity and temperature in the presence of electromagnetic fields. The…Emily Kelting, J. Douglas Wright·Oct 3, 2024SaveLearn
Study of magnetic reconnection at low-β using laser-powered capacitor coilsMagnetic reconnection is a ubiquitous fundamental process in space and astrophysical plasmas that rapidly converts magnetic energy into some combination of flow energy, thermal energy, and…H. Ji, L. Gao, G. Pomraning et al.·Oct 3, 2024SaveLearn
Phase Transition From Turbulence To Zonal Flows In The Hasegawa-Wakatani SystemThe transition between two-dimensional hydrodynamic turbulence and quasi-one-dimensional zonostrophic turbulence is examined in the modified Hasegawa-Wakatani system, which is considered as a minimal…Pierre L. Guillon, Özgür D. Gürcan·Oct 2, 2024SaveLearn
Burn Propagation in Magnetized High-Yield Inertial FusionRecent experiments at the National Ignition Facility (NIF) have demonstrated ignition for the first time in an inertial confinement fusion (ICF) experiment, a major milestone allowing the possibility…S. T. O'Neill, B. D. Appelbe, A. J. Crilly et al.·Oct 2, 2024SaveLearn
2D electron density profile evolution during detachment in Super-X divertor L-mode discharges on MAST-U2D electron density profiles obtained from coherence imaging spectroscopy in different MAST-U divertor conditions are compared. The data includes variations of strike point position, core electron…N. Lonigro, R. S. Doyle, K. Verhaegh et al.·Oct 1, 2024SaveLearn
Radiated energy fraction of SPI-induced disruptions at ASDEX UpgradeFuture large tokamaks will operate at high plasma currents and high stored plasma energies. To ensure machine protection in case of a sudden loss of plasma confinement (major disruption), a large…Paul Heinrich, Gergely Papp, Stefan Jachmich et al.·Oct 1, 2024SaveLearn
The implications of collisions on the spatial profile of electric potential and the space-charge limited currentThe space-charge limited current (SCLC) in a vacuum diode is given by the Child-Langmuir law (CLL), whose electric potential φ(x) = (x/D)4/3, where x is the spatial coordinate across the…Allen L. Garner, N. R. Sree Harsha·Oct 1, 2024SaveLearn
The impact of non-local parallel electron transport on plasma-impurity reaction rates in tokamak scrape-off layer plasmasPlasma-impurity reaction rates are a crucial part of modelling tokamak scrape-off layer (SOL) plasmas. To avoid calculating the full set of rates for the large number of important processes involved,…Dominic Power, Stefan Mijin, Kevin Verhaegh et al.·Oct 1, 2024SaveLearn
A Magnetic Analog of Pressure-Strain InteractionWe study the evolution equation for magnetic energy density for a non-relativistic magnetized plasma in the (Lagrangian) reference frame comoving with the electron bulk velocity. Analyzing the terms…M. Hasan Barbhuiya, P. A. Cassak·Oct 1, 2024SaveLearn
Jetter and Post nuclear fusion cycles: new fire to an old ideaNew calculations of the time evolution and isotopic composition for a network of nuclear reactions breathe new life into an old idea in nuclear fusion, burning solid room temperature lithium-6…Lorenzo Fortunato, Andres Felipe Lopez Loaiza, Giulio Albertin et al.·Sep 30, 2024SaveLearn
Long-Wavelength Limit of the Two-Fluid Euler-Poisson SystemPlasma is a medium filled with free electrons and positive ions. Each particle acts as a conducting fluid with a single velocity and temperature when electromagnetic fields are present. This…Emily Kelting, J. Douglas Wright·Sep 30, 2024SaveLearn
Near-axis description of stellarator-symmetric quasi-isodynamic stellarators to second orderThe near-axis description of optimised stellarators, at second order in the expansion, provides important information about the field, both of physical and practical importance for stellarator…Eduardo Rodriguez, Gabriel G. Plunk, Rogerio Jorge·Sep 30, 2024SaveLearn
Combing physics-based and data-driven predictions for quantitatively accurate models that extrapolate well; with application to DIII-D, AUG, and ITER tokamak fusion reactorsMethodologies for combining the accuracy of data-driven models with extrapolability of physics-based models are described and tested, for the task of building transport models of tokamak fusion…Joseph Abbate, Emiliano Fable, Giovanni Tardini et al.·Sep 30, 2024SaveLearn
Simplified magnet design and manufacture based on patterning of wide conductorsThe fabrication and assembly of High Temperature Superconducting (HTS) magnets can be significantly streamlined by (1) direct deposition of HTS onto modular components and (2) laser-ablated grooves…Diego Pereira Botelho, Victor Prost, Luana Barbosa Pina Pereira et al.·Sep 30, 2024SaveLearn
Knot-detection algorithm to measure viscosity in three-dimensional MHD plasmasThis project explores the mathematical study of knots and links in topology, focusing on differentiating between the two-component Unlink and the Hopf Link using a computational tool named LINKAGE.…Ratul Chakraborty, Rupak Mukherjee·Sep 30, 2024SaveLearn
Ion density waves driving the formation of filamentary dust structuresThe PlasmaKristall-4 experiment on the International Space Station allows for the study of the 3-dimensional interaction between plasma and dust particles. Previous simulations of the PK-4…A. Mendoza, D. Jiménez Martí, L. S. Matthews et al.·Sep 29, 2024SaveLearn
Spatial Fluctuation of the Electric Field within SF6 Streamer Channel in Highly Non-Uniform Fields: Phenomenon, Validation, and MechanismThe electric field within the streamer channel is a critical parameter in the calculation model for the nonlinear breakdown voltage of SF6, motivating the research presented in this paper. By using a…Zihao Feng, Xinxin Wang, Xiaobing Zou et al.·Sep 29, 2024SaveLearn
Improved algorithm for a two-dimensional Darwin particle-in-cell codeA two-dimensional particle-in-cell code for simulation of low-frequency electromagnetic processes in laboratory plasmas has been developed. The code uses the Darwin method omitting the…Dmytro Sydorenko, Igor D. Kaganovich, Alexander V. Khrabrov et al.·Sep 29, 2024SaveLearn
Triboplasma assisted chemical conversion in granular systems: a semi-analytic modelWe present a semi-analytic model for a novel plasma-assisted chemical conversion pathway using triboplasmas generated in granular flows. Triboelectric charge relaxation is a well known phenomena…Hariswaran Sitaraman, Sankaran Sundaresan·Sep 28, 2024SaveLearn
Tessellation-based analysis of impurity clustering in the edge plasma of tokamaksConfinement quality in fusion plasma is significantly influenced by the presence of heavy impurities, which can lead to radiative heat loss and reduced confinement. This study explores the clustering…Zetao Lin, Thibault Maurel--Oujia, Benjamin Kadoch et al.·Sep 28, 2024SaveLearn