Upgrade of the Diagnostic Neutral Beam Injector for the RFX-mod2 experimentDiagnostic Neutral Beam Injectors (DNBI), through the combined use of Charge Exchange Recombination Spectroscopy (CHERS) and Motional Stark effect diagnostics (MSE), are a well-known tool to access…Marco Barbisan, Marco Boldrin, Luca Cinnirella et al.·Nov 20, 2024SaveLearn
New Insights on the High Reconnection Rate and the Diminishment of Ion OutflowThe recently discovered electron-only reconnection has drawn great interests due to abnormal features like lack of ion outflows and high reconnection rates. Using particle-in-cell simulations, we…Cheng-Yu Fan, Shan Wang, Xu-Zhi Zhou et al.·Nov 20, 2024SaveLearn
Prevention of resistive wall tearing mode major disruptions with feedbackResistive wall tearing modes (RWTM) can cause major disruptions. A signature of RWTMs is that the rational surface is sufficiently close to the wall. For (m,n) = (2,1) modes, at normalized minor…H. R. Strauss·Nov 20, 2024SaveLearn
Oscillations of subcritical fast magnetosonic shock boundaries caused by shock reformationThe evolution of a deformed subcritical fast magnetosonic shock front is compared between two two-dimensional PIC simulations with different orientations of the magnetic field relative to the…M E Dieckmann, A Bret, D Folini et al.·Nov 20, 2024SaveLearn
Demonstration of OpenMC as a framework for atomic transport and plasma interactionModern tooling is demanded for predicting the transport and reaction characteristics of atoms and molecules, especially in the context of magnetic confinement fusion. DEGAS2, among the most common…George J. Wilkie, Paul K. Romano, R. Michael Churchill·Nov 20, 2024SaveLearn
Single-Mode Wave DecayThe usual approach on electrostatic wave decay process for a weak beam-plasma system considers two different wave modes interplaying, the Langmuir and ion-sound mode. In the present paper, a…Guilherme T. Irumé, Joel Pavan, Rudi Gaelzer·Nov 19, 2024SaveLearn
Single-fluid simulation of partially-ionized, non-ideal plasma facilitated by a tabulated equation of stateWe present a single-fluid approach for the simulation of partially-ionized plasmas (PIPs) which is designed to capture the non-ideal effects introduced by neutrals while remaining close in…G. Su, S. T. Millmore, X. Zhang et al.·Nov 19, 2024SaveLearn
The neutron spectral moments method in the time-of-flight domainAn analysis methodology is developed for the time-of-flight (TOF) signals recorded by two or more collinear neutron detectors located at different distances from a pulsed neutron source. It is based…Brian D. Appelbe, Aidan J. Crilly·Nov 19, 2024SaveLearn
Degradation of performance in ICF implosions due to Rayleigh--Taylor instabilities: a Hamiltonian perspectiveThe Rayleigh--Taylor instability (RTI) is an ubiquitous phenomenon that occurs in inertial-confinement-fusion (ICF) implosions and is recognized as an important limiting factor of ICF performance. To…D. E. Ruiz·Nov 19, 2024SaveLearn
Coherent Structures in One-dimensional Buneman Instability Nonlinear SimulationsLong-duration one-dimensional PIC simulations are presented of Buneman-unstable, initially Maxwellian, electron and ion distributions shifted with respect to one another, providing detailed…I H Hutchinson·Nov 19, 2024SaveLearn
Energy balance for 6D kinetic ions with adiabatic electronsThis paper investigates the energy fluxes for the 6D kinetic Vlasov system. We introduce a novel method for calculating particle and energy flows within this framework which allows for the…Mario Raeth, Klaus Hallatschek·Nov 19, 2024SaveLearn
Axial-radial plasma transport and performance of a plasma thruster magnetic nozzle under Bohm's anomalous diffusion scalingMagnetic nozzles (MN) are known to be subject to anomalous non-collisional diffusion mechanisms driven by instabilities and wave-particle interactions. This study therefore employs a fully kinetic…Shaun Andrews, Raoul Andriulli, Nabil Souhair et al.·Nov 18, 2024SaveLearn
Plasma acceleration of polarized particle beamsSpin-polarized particle beams are of interest for applications like deep-inelastic scattering, e.g. to gain further understanding of the proton's nuclear structure. With the advent of…Lars Reichwein, Zheng Gong, Chuan Zheng et al.·Nov 18, 2024SaveLearn
Analytical Description of Backward Stimulated Raman Scattering Short Pulse Gain factor for Gaussian and Square PulsesThis work analytically compares the growth of Backward Stimulated Raman Scattering (B-SRS) induced by temporal laser pulses on the order of a few tens of laser cycles or a couple of picoseconds for…Humberto Figueroa, Mitchell Sinclair, Chan Joshi·Nov 18, 2024SaveLearn
A numerical study of self-focusing and guiding of laser pulse of duration shorter than plasma wavelengthSelf-focusing and guiding of ultra-short (pulse duration: L<lambdaP: plasma wavelength), intense laser pulses in underdense plasma relevant to laser wakefield electron acceleration has been studied…D. Hazra, A. Moorti·Nov 18, 2024SaveLearn
Harris Dispersion Relation and Bernstein Modes in Dense Magnetized Quantum PlasmasThe Bernstein wave is a well-known electrostatic eigen-mode in magnetized plasmas, and it is of broad connection to multiple disciplines, such as controlled nuclear fusions and astrophysics. In this…T. X. Hu, D. Wu, J. Zhang·Nov 18, 2024SaveLearn
Structure of weakly collisional shock waves of multicomponent plasmas inside hohlraums of indirect inertial confinement fusionsIn laser-driven indirect inertial confinement fusion (ICF), a hohlraum--a cavity constructed from high-Z materials--serves the purpose of converting laser energy into thermal x-ray energy. This…Tianyi Liang, Dong Wu, Lifeng Wang et al.·Nov 17, 2024SaveLearn
New axisymmetric equilibria with flow from an expansion about the generalized Solov'ev solutionWe construct analytic solutions to the generalized Grad-Shafranov equation, which incorporates both toroidal and poloidal flows. This is achieved by adopting a general linearizing ansatz for the…A. I. Kuiroukidis, D. A. Kaltsas, G. N. Throumoulopoulos·Nov 16, 2024SaveLearn
Reconstruction of electron velocity distribution function and Gibbs entropy from electron cyclotron emission in magnetized plasmasWe propose a method for reconstructing the fluctuation components of the electron velocity distribution function f(vperp), and the electron entropy, which is a functional of f(vperp) expressed as…Kawamori Eiichirou·Nov 16, 2024SaveLearn
Resilient Stellarator Divertor Characteristics in the Helically Symmetric eXperimentResilient divertor features connected to open chaotic edge structures in the Helically Symmetric Experiment (HSX) are investigated. For the first time, an expanded vessel wall was considered that…K. A. Garcia, A. Bader, D. Boeyaert et al.·Nov 15, 2024SaveLearn
Charge-exchange measurements of high-energy fast ions in LHD using negative-ion neutral beam injectionA new sightline geometry for the fast-ion D-alpha (FIDA) diagnostic on the Large Helical Device (LHD) has been confirmed to measure signals for high-energy fast ions produced by negative-ion neutral…W. H. J. Hayashi, W. W. Heidbrink, C. M. Muscatello et al.·Nov 15, 2024SaveLearn
Magnetized ICF implosions: Non-axial magnetic field topologiesThis paper explores 4 different magnetic field topologies for application to spherical inertial confinement fusion implosions: axial, mirror, cusp and closed field lines. A mirror field is found to…C. A. Walsh, D. J. Strozzi, A. Povilus et al.·Nov 15, 2024SaveLearn
Solvated Electrons and Hydroxyl Radicals at the Plasma-Liquid InterfaceWhile hydroxyl radicals (·OH) play an important role as potent oxidizing agents in various plasma applications, their high reactivity confines them to a thin layer at the plasma-liquid…Seungjun Lee, Hyung-Gu Kang, Minkwan Kim et al.·Nov 15, 2024SaveLearn
Indication of p + 11B Reaction in Laser Induced Nanofusion ExperimentThe NanoPlasmonic Laser Induced Fusion Energy (NAPLIFE) project proposed fusion by regulating the laser light absorption via resonant nanorod antennas implanted into hydrogen rich urethane acrylate…N. Kroó, L. P. Csernai, I. Papp et al.·Nov 14, 2024SaveLearn
Integrated Data Analysis and ValidationA major challenge in nuclear fusion research is the coherent combination of data from heterogeneous diagnostics and modelling codes for machine control and safety as well as physics studies. Measured…R. Fischer, A. Bock, S. S. Denk et al.·Nov 14, 2024SaveLearn