Understanding Trade-offs in Stellarator Design with Multi-objective OptimizationIn designing stellarators, any design decision ultimately comes with a trade-off. Improvements in particle confinement, for instance, may increase the burden on engineers to build more complex coils,…David Bindel, Matt Landreman, Misha Padidar·Apr 18, 2023SaveLearn
Simulation of the TAEs saturation phase in Large Helical Device device: MHD burstThe aim of the present study is to analyze the saturation regime of the Toroidal Alfven Eigenmodes (TAE) in the LHD plasma, particularly the MHD burst. The linear and nonlinear evolution of the TAEs…J. Varela, D. A. Spong, Y. Todo et al.·Apr 17, 2023SaveLearn
Theoretical study of the Alfven Eigenmode stability in CFETR steady state dischargesThe aim of this study is to analyze the stability of Alfven Eigenmodes (AE) in the China Fusion Engineering Test Reactor (CFETR) plasma for steady state operations. The analysis is done using the…J. Varela, J. Huang, D. A. Spong et al.·Apr 17, 2023SaveLearn
A high-efficiency proton-boron fusion scheme taking into account the effects of quantum degeneracyThe proton-boron (p-11B) reaction is regarded as the holy grail of advanced fusion fuels, since the primary reaction produces three α particles with few neutrons and induced radio-activities…S. J. Liu, D. Wu, T. X. Hu et al.·Apr 17, 2023SaveLearn
Validation of the plasma-wall self-organization model for density limit in ECRH-assisted start-up of Ohmic discharges on J-TEXTA recently developed plasma-wall self-organization (PWSO) model predicts a significantly enhanced density limit, which may be attainable in tokamaks with ECRH-assisted ohmic startup and sufficiently…Jiaxing Liu, Ping Zhu, Dominique Franck Escande et al.·Apr 17, 2023SaveLearn
Spider Ion Source and Extraction Power Supplies -- An update of the design after four years of operationSPIDER, the ion source prototype for ITER neutral beam injectors, has been in operation since 2018. The experiment includes a system of Ion Source and Extraction Power Supplies (ISEPS), whose design…A. Shepherd, M. Bigi, R. Casagrande et al.·Apr 17, 2023SaveLearn
A Model of Tokamak Locked Mode DisruptionsLocked modes are precursors to major disruptions. During locked modes, the temperature decreases in the plasma edge region. This causes the current to contract. A model is given to analyze the MHD…H. R. Strauss·Apr 17, 2023SaveLearn
Optical generation of quasi-stationary plasma electromagnetic structures for particle collimation with PetaWatt picosecond laserOptical generation of energetic particle bunches requires high-power laser facilities operating in picosecond or femtosecond temporal domain. It is therefore preferable to use short laser pulses in…Ph. Korneev, N. D. Bukharskii, I. V. Kochetkov et al.·Apr 16, 2023SaveLearn
Two-stream instability with a growth rate insensitive to collisions in a dissipative plasma jetThe two-stream instability (Buneman instability) is traditionally derived as a collisionless instability with the presumption that collisions inhibit this instability. We show here via a combination…Yi Zhou, Paul M. Bellan·Apr 13, 2023SaveLearn
Strongly intermittent far scrape-off layer fluctuations in Alcator C-Mod plasmas close to the empirical discharge density limitIntermittent plasma fluctuations in the boundary region of the Alcator C-Mod device were comprehensively investigated using data time-series from gas puff imaging and mirror Langmuir probe…Sajidah Ahmed, Odd Erik Garcia, Adam Q Kuang et al.·Apr 13, 2023SaveLearn
Reduced-order particle-in-cell simulations of a high-power magnetically shielded Hall thrusterHigh-power magnetically shielded Hall thrusters have recently emerged to meet the needs of the next-generation space missions. Even though a few such thrusters are currently undergoing their…Maryam Reza, Farbod Faraji, Aaron Knoll et al.·Apr 13, 2023SaveLearn
Transport of intense ion beams in plasmas: collimation and energy-loss reductionWe compare the transport properties of a well-characterized hydrogen plasma for low and high current ion beams. The energy-loss of low current beams can be well understood, within the framework of…Yongtao Zhao, Benzheng Chen, Dong Wu et al.·Apr 13, 2023SaveLearn
Quantitative feasibility study of sequential neutron captures using intense lasersDeciphering the conditions under which neutron captures occur in the Universe to synthesize heavy elements is an endeavour pursued since the 1950s, but that has proven elusive up to now due to the…Vojtěch Horný, Sophia N. Chen, Xavier Davoine et al.·Apr 12, 2023SaveLearn
Effect of triplet correlation on the equation of pair correlation function in a weakly coupled inhomogeneous plasma systemIt is observed that retaining the triplet correlation to derive the equation of pair correlation function from the first two members of BBGKY hierarchy, modifies the structure of the equation and the…Anirban Bose·Apr 12, 2023SaveLearn
Self-consistent Modeling of Inductively Coupled Plasma DischargesThe purpose of this work is the development of a self-consistent multi-physics modeling framework for ICP discharges. Unlike a monolithic approach, the hydrodynamics and electromagnetic field are…Alessandro Munafo', Sanjeev Kumar, Marco Panesi·Apr 12, 2023SaveLearn
The Generalized Plasma Focus Problem and its Application to Space PropulsionSpace propulsion is unique among many proposed applications of the Dense Plasma Focus in being critically dependent on the availability of a scaling theory that is well-grounded in physics, in…S K H Auluck·Apr 12, 2023SaveLearn
Physical understanding of the static magnetic field's synergistic enhancement of cold atmospheric pressure plasma treatmentIn the last decades, to improve the CAP treatment efficiency, its biological effects in combination with other physical modalities have widely investigated. However, the physical insight into most of…Ramin Mehrabifard, Zeinab Kabarkouhi, Fatemeh Rezaei et al.·Apr 11, 2023SaveLearn
Streamer propagation in humid airWe investigate the effect of humidity on the propagation of streamers in air. We present a minimal set of chemical reactions that takes into account the presence of water in a nonthermal air plasma…A. Malagón-Romero, A. Luque·Apr 11, 2023SaveLearn
Plasma propulsion simulation using particlesThis perspective paper deals with an overview of particle-in-cell / Monte Carlo collision models applied to different plasma-propulsion configurations and scenarios, from electrostatic (E x B and…F. Taccogna, F. Cichocki, D. Eremin et al.·Apr 11, 2023SaveLearn
Modeling inductive radio frequency coupling in powerful negative hydrogen ion sources: optimizing the RF couplingIn the fusion experiment ITER powerful neutral beam injection (NBI) systems will be used. The NBI's core component is a negative hydrogen ion source, which is based on a modular concept. Eight…Dominikus Zielke, Stefan Briefi, Ursel Fantz·Apr 11, 2023SaveLearn
Linear and Nonlinear Kinetic Alfvén Wave Physics in Cylindrical PlasmasKinetic Alfvén Waves (KAWs) are generated in magnetized space and laboratory plasmas due to a continuous shear Alfvén wave (SAW) spectrum and, unlike SAWs, are characterized by microscale…Livio De Fabrizio·Apr 10, 2023SaveLearn
Extension of ELM suppression window using n=4 RMPs in EASTThe q95 window for Type-I Edge Localized Modes (ELMs) suppression using n=4 even parity Resonant Magnetic Perturbations (RMPs) has been significantly expanded to a range from 3.9 to 4.8, which is…P. Xie, Y. Sun, Q. Ma et al.·Apr 10, 2023SaveLearn
In-situ coating of silicon-rich films on tokamak plasma-facing components with real-time Si material injectionExperiments have been conducted in the DIII-D tokamak to explore the in-situ growth of silicon-rich layers as a potential technique for real-time replenishment of surface coatings on plasma-facing…Florian Effenberg, Shota Abe, Gregory Sinclair et al.·Apr 8, 2023SaveLearn
Direct Laser Writing of Surface Micro-Domes by Plasmonic BubblesPlasmonic microbubbles produced by laser irradiated gold nanoparticles (GNPs) in various liquids have emerged in numerous innovative applications. The nucleation of these bubbles inherently involves…Lihua Dong, Fulong Wang, Buyun Chen et al.·Apr 8, 2023SaveLearn
Non-thermal particle acceleration and power-law tails via relaxation to universal Lynden-Bell equilibriaCollisionless and weakly collisional plasmas often exhibit non-thermal quasi-equilibria. Among these quasi-equilibria, distributions with power-law tails are ubiquitous. It is shown that the…Robert J. Ewart, Michael L. Nastac, Alexander A. Schekochihin·Apr 7, 2023SaveLearn