English
Related papers

Related papers: Condition for Steep Density Gradient at Separatrix

200 papers

Differentially rotating plasma disks, around compact objects, that are imbedded in a ``seed'' magnetic field are shown to develop vertically localized ballooning modes that are driven by the combined radial gradient of the rotation…

Astrophysics · Physics 2009-06-23 Bruno Coppi

We use helioseismic data obtained over two solar cycles to determine whether there are changes in the near-surface shear layer (NSSL). We examine this by determining the radial gradient of the solar rotation rate. The radial gradient itself…

Solar and Stellar Astrophysics · Physics 2022-01-12 H. M. Antia , Sarbani Basu

Relaxations of localized over-density in a plane transverse to the magnetic field are numericallyinvestigated under the effect of drift-wave and interchange drives in SOL conditions. Such a controlleddeparture from thermodynamic equilibrium…

Plasma Physics · Physics 2024-06-06 R Varennes , G Dif-Pradalier , P Ghendrih , V Grandgirard , O Panico , Y Sarazin , E Serre , D Zarzoso

The atomically precise placement of dopants in semiconductors using scanning tunneling microscopes has been used to create planar dopant-based devices, enabling the exploration of novel classical or quantum computing concepts, which often…

Mesoscale and Nanoscale Physics · Physics 2023-12-08 Juan P. Mendez , Shashank Misra , Denis Mamaluy

Liquid-liquid phase separation is an important mechanism for compartmentalizing the cell's cytoplasm, allowing the dynamic organization of the components necessary for survival. However, it is not clear how phase separation is affected by…

Soft Condensed Matter · Physics 2022-01-31 Estefania Vidal-Henriquez , David Zwicker

This work presents a detailed characterisation of the MAST Scrape Off Layer in L-mode. Scans in line averaged density, plasma current and toroidal magnetic field were performed. A comprehensive and integrated study of the SOL was allowed by…

The 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 boundary conditions on the core plasma, and…

Plasma Physics · Physics 2022-12-29 X. Zhang , F. M. Poli , E. D. Emdee , M. Podestà

The physics of plasmas containing positive and negative ions is discussed with special attention to the recently produced pair-ion plasma containing ions of equal mass and opposite charge. The effects of the density gradient in the…

Plasma Physics · Physics 2009-11-13 J. Vranjes , D. Petrovic , B. P. Pandey , S. Poedts

Drops in contact with swollen, elastomeric substrates can induce a capillary-mediated phase separation in wetting ridges. Using laser scanning confocal microscopy, we visualize phase separation of oligomeric silicone oil from a crosslinked…

Soft Condensed Matter · Physics 2023-02-06 Lukas Hauer , Zhuoyun Cai , Doris Vollmer , Jonathan T. Pham

A plasma under the influence of an external magnetic field changes the optical properties due to the Zeeman splitting of the energy levels. This splitting degenerates an initial single spectral line into a system of spectral lines with…

Plasma Physics · Physics 2020-01-08 Roman Bergert , Slobodan Mitic

Since the opacity of a magnetized plasma depends on polarization of radiation, the radiation emergent from atmospheres of neutron stars with strong magnetic fields is expected to be strongly polarized. The degree of linear polarization,…

Astrophysics · Physics 2009-10-31 G. G. Pavlov , V. E. Zavlin

Magnetic geometry has a significant effect on the level of turbulent transport in fusion plasmas. Here, we model and analyze this dependence using multiple machine learning methods and a dataset of > 200,000 nonlinear simulations of…

A stochastic differential equation for the plasma density dynamics is derived, consistent with the experimentally measured distribution and the theoretical quadratic nonlinearity. The plasma density is driven by a multiplicative Wiener…

Plasma Physics · Physics 2012-10-05 A. Mekkaoui

The influence of the ion mass on filament propagation in the scrape-off layer of toroidal magnetised plasmas is analysed for various fusion relevant majority species, like hydrogen isotopes and helium, on the basis of a computational…

Plasma Physics · Physics 2017-05-24 Ole Hauke Heinz Meyer , Alexander Kendl

We have developed a general model for determining density-dependent effective dielectronic recombination (DR) rate coefficients in order to explore finite-density effects on the ionization balance of plasmas. Our model consists of…

Atomic Physics · Physics 2015-06-15 D. Nikolić , T. W. Gorczyca , K. T. Korista , G. J. Ferland , N. R. Badnell

We model the intracluster medium as a weakly collisional plasma that is a binary mixture of the hydrogen and the helium ions, along with free electrons. When, owing to the helium sedimentation, the gradient of the mean molecular weight (or…

Astrophysics of Galaxies · Physics 2017-12-13 Himanshu Gupta , Anya Chaudhuri , Shubhadeep Sadhukhan , Sagar Chakraborty

The Numerical Advanced Model of Electron Cyclotron Resonance Ion Source (NAM-ECRIS) is applied for studies of the physical processes in the source. Solutions of separately operating electron and ion modules of NAM-ECRIS are matched in…

Plasma Physics · Physics 2020-08-26 V. Mironov , S. Bogomolov , A. Bondarchenko , A. Efremov , V. Loginov , D. Pugachev

This paper is devoted to derivation of plasma equations, considering chemical reactions and radiations. After deriving the governing equations of multi-particle plasmas, the ordinary differential equations of plasma shock layer equations…

Dynamical Systems · Mathematics 2021-12-17 Yaghoub Farjami

Using a minimal model of active Brownian discs, we study the effect of a crucial parameter, namely the softness of the inter-particle repulsion, on motility-induced phase separation. We show that an increase in particle softness reduces the…

Soft Condensed Matter · Physics 2021-05-19 Monika Sanoria , Raghunath Chelakkot , Amitabha Nandi

The polarization observed in the spectral lines of the He I 10830 multiplet carries valuable information on the dynamical and magnetic properties of plasma structures in the solar chromosphere and corona, such as spicules, prominences,…

Astrophysics · Physics 2008-11-26 J. Trujillo Bueno , A. Asensio Ramos
‹ Prev 1 3 4 5 6 7 10 Next ›