Simulation study of a bright attosecond γ-ray source generation by irradiating an intense laser on a cone targetThe interaction between an ultrastrong laser and a cone-like target is an efficient approach to generate high power radiations like attosecond pulses and terahertz waves. The object is to study the…Cui-Wen Zhang, Yi-Xuan Zhu, Jian-Feng Lv et al.·Jun 26, 2022SaveLearn
Accurate Temperature Diagnostics for Matter under Extreme ConditionsThe experimental investigation of matter under extreme densities and temperatures as they occur for example in astrophysical objects and nuclear fusion applications constitutes one of the most active…Tobias Dornheim, Maximilian Böhme, Dominik Kraus et al.·Jun 26, 2022SaveLearn
On filamentation in the dense plasma focusStriking pictures showing filamentary structures in plasma focus have intrigued researchers from the early days of plasma focus research. A definitive understanding of their occurrence, origin,…S K H Auluck·Jun 25, 2022SaveLearn
Electromagnetic Nonreciprocity in a Magnetized Plasma CirculatorNonreciprocal transport of electromagnetic waves within magnetized plasma is a powerful building block towards understanding and exploiting the properties of more general topological systems. Much…Feng Li, Robert J. Davis, Sara M. Kandil et al.·Jun 24, 2022SaveLearn
Hot-tail electrons' impact on assimilation and injection penetration of D2 Shattered Pellet InjectionsThe fragment ablation rate plays significant roles in the mitigation efficiency of Shattered Pellet Injection (SPI) as a Disruption Mitigation System (DMS). Current mainstream 3D MHD codes modelling…Di Hu, Chang Liu·Jun 24, 2022SaveLearn
Reduced Physics Model of the Tokamak Scrape-off-Layer for Pulse DesignThe dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes…X. Zhang, F. M. Poli, E. D. Emdee et al.·Jun 23, 2022SaveLearn
Enhanced signature of vacuum birefringence in a plasma wakefieldVacuum birefringence (VB) is a basic phenomenon predicted in quantum electrodynamics (QED). However, due to the smallness of the signal, conventional magnet-based and extremely intense laser-driven…Feng Wan, Ting Sun, Bai-Fei Shen et al.·Jun 22, 2022SaveLearn
Observation of the diocotron instability in a diode with split cathodeDiocotron instability has been observed in the pure electron plasma formed in a split cathode coaxial diode. This plasma consists of electrons, trapped in the longitudinal potential well between the…Y. Bliokh, Ya. E. Krasik, J. G. Leopold et al.·Jun 21, 2022SaveLearn
Modulational instability of a Yukawa fluid excitation under the Quasi-localization charged approximation (QLCA) frameworkCollective response dynamics of a strongly coupled system departs from the continuum phase upon transition to the quasicrystalline phase, or formation of a Wigner lattice. The wave nonlinearity…Sandip Dalui, Prince Kumar, Devendra Sharma·Jun 21, 2022SaveLearn
Data-driven model for divertor plasma detachment predictionWe present a fast and accurate data-driven surrogate model for divertor plasma detachment prediction leveraging the latent feature space concept in machine learning research. Our approach involves…Ben Zhu, Menglong Zhao, Harsh Bhatia et al.·Jun 20, 2022SaveLearn
Experimental scaling of the scrape-off layer particle flux width by outboard divertor Langmuir probes with favorable Bt configuration on EASTThe scrape-off layer (SOL) power width (λq) is important for predicting the heat load on divertor targets for future magnetically confined devices. Currently, the underlying physics for λq scaling…X. Liu, L. Y. Meng, J. C. Xu et al.·Jun 17, 2022SaveLearn
Discovery of double Hall pattern associated with collisionless magnetic reconnection in dusty plasmasMagnetic reconnection is prevalent in magnetized plasmas in space and laboratories. Despite significant investigations on reconnection in electron-ion plasmas, studies of reconnection in magnetized…Shu-Di Yang, Liang Wang, Chuanfei Dong·Jun 17, 2022SaveLearn
Highly spin-polarized multi-GeV electron beams generated by single-species plasma photocathodesHigh-gradient and high-efficiency acceleration in plasma-based accelerators has been demonstrated, showing its potential as the building block for a future collider operating at the energy frontier…Zan Nie, Fei Li, Felipe Morales et al.·Jun 17, 2022SaveLearn
Radiation pressure acceleration of high-quality ion beams using ultrashort laser pulsesThe generation of compact, high-energy ion beams is one of the most promising applications of intense laser-matter interactions, but the control of the beam spectral quality remains an outstanding…H. -G. Jason Chou, Anna Grassi, Siegfried H. Glenzer et al.·Jun 17, 2022SaveLearn
Nonresonant scattering of relativistic electrons by electromagnetic ion cyclotron waves in Earth's radiation beltsElectromagnetic ion cyclotron waves are expected to pitch-angle scatter and cause atmospheric precipitation of relativistic (> 1 MeV) electrons under typical conditions in Earth's radiation…Xin An, Anton Artemyev, Vassilis Angelopoulos et al.·Jun 16, 2022SaveLearn
A data management system for machine learning research of tokamakIn recent years, machine learning (ML) research methods have received increasing attention in the tokamak community. The conventional database (i.e., MDSplus for tokamak) of experimental data has…Chenguang Wan, Zhi Yu, Xiaojuan Liu et al.·Jun 16, 2022SaveLearn
Turbulent Transport in Tokamak-plasmas: A Thermodynamic ApproachIn previous work we provided the explicit form of the nonlinear PDEs, subjected to the appropriate boundary conditions, which have to be satisfied by transport coefficients for systems out of…Giorgio Sonnino, Philippe Peeters, Pasquale Nardone et al.·Jun 16, 2022SaveLearn
Development of an interactive code for quick data analyses between STOR-M tokamak experimental plasma dischargesSaskatchewan Torus-Modified (STOR-M) is a small tokamak, well known for various fusion related basic experimental studies such as edge turbulent heating, different instabilities, AC (alternating…Masaru Nakajima, Debjyoti Basu, A. V. Melnikov et al.·Jun 16, 2022SaveLearn
Direct construction of stellarator-symmetric quasi-isodynamic magnetic configurationsWe develop the formalism of the first order near-axis expansion of the MHD equilibrium equations described in Garren & Boozer (1991), Plunk et al. (2019) and Plunk et al. (2021), for the case of a…Katia Camacho Mata, Gabriel G. Plunk, Rogerio Jorge·Jun 16, 2022SaveLearn
Coupling of "cold" electron plasma wave via stationary ion inhomogeneity to the plasma bulkUsing high resolution kinetic (VPPM-OMP 1.0) and fluid (BOUT++) solvers, evolution of long-wavelength electron plasma wave (EPW) in the presence of stationary periodic ion background non-uniformity…Sanjeev Kumar Pandey, Jagannath Mahapatra, Rajaraman Ganesh·Jun 15, 2022SaveLearn
Legolas: magnetohydrodynamic spectroscopy with viscosity and Hall currentMany linear stability aspects in plasmas are heavily influenced by non-ideal effects beyond the basic ideal magnetohydrodynamics (MHD) description. Here, the extension of the modern open-source MHD…Jordi De Jonghe, Niels Claes, Rony Keppens·Jun 15, 2022SaveLearn
Polarometric Method of Plasma DiagnosticsThe polarization plane rotation angle of probe signal in plasma is calculated. The estimates of the residual gas average density and the average magnitude of the magnetic field in a cesium plasma…Koryun B. Oganesyan, Krzysztof Dzierdzega, Peter Kopcansky·Jun 15, 2022SaveLearn
Constraints on stellarator divertors from Hamiltonian mechanicsThe design of any large stellarator requires a plan for the removal of the particles and heat that are exhausted across the plasma edge. This is called the divertor problem, for the particle exhaust…Allen H Boozer·Jun 14, 2022SaveLearn
Scaling of the Hosking integral in decaying magnetically-dominated turbulenceThe Saffman helicity invariant of Hosking and Schekochihin (2021, PRX 11, 041005), which we here call the Hosking integral, has emerged as an important quantity that may govern the decay properties…Hongzhe Zhou, Ramkishor Sharma, Axel Brandenburg·Jun 14, 2022SaveLearn
Locked mode disruptions in DIII-D and application to ITERDisruptions are a serious problem in tokamaks, in which thermal and magnetic energy confinement is lost. This paper uses data from the DIII-D experiment, theory, and simulations to demonstrate that…H. Strauss, B. C. Lyons, M. Knolker·Jun 14, 2022SaveLearn