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相关论文: The frequency of electron-ion collisions in a hot …

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The paper studies the drift instability in Kappa-distributed inhomogeneous plasmas. Weak inhomogeneity and local approximation are assumed. The linear dispersion relation is expressed in a novel integral representation that involves the…

等离子体物理 · 物理学 2023-12-27 Ran Guo

-We have performed a new efficient method to calculate numerically the transport coefficients at high temperature. The collision theory was treated to study singularities that occur when evaluating the collision cross section. The transport…

等离子体物理 · 物理学 2015-01-30 Ali Mahfouf , Pascal André , Géraldine Faure

We show that in asymmetric heavy-ion collisions, especially off-central Cu+Au collisions, a sizable strength of electric field directed from Au nucleus to Cu nucleus is generated in the overlapping region, because of the difference in the…

核理论 · 物理学 2014-12-09 Yuji Hirono , Masaru Hongo , Tetsufumi Hirano

Plasma boundary layers are susceptible to electrostatic instabilities driven by ion flows in presheaths and, when present, these instabilities can influence transport. In plasmas with a single species of positive ion, ion-acoustic…

等离子体物理 · 物理学 2016-03-23 Scott D. Baalrud

We argue that stochastic and resonant ion heating, often viewed as distinct processes in low-$\beta$ collisionless plasmas, are the far limits of a continuum controlled by nonlinear broadening of turbulent fluctuations, and thus by the…

太阳与恒星天体物理 · 物理学 2025-09-03 Zade Johnston , Jonathan Squire , Romain Meyrand

The plasma sheath sets a stage for a strongly nonlinear coupling of the thermal, kinetic, and electric energies of plasma in a non-equilibrium, open environment. The pressure, velocity, and electrostatic potential profiles depend strongly…

等离子体物理 · 物理学 2016-12-30 Yuji Ohno , Zensho Yoshida

We consider weakly ionized plasma where frequent elastic scattering of electrons on neutrals change the individual acts and the rate of electron-electron collisions significantly. In this case, the kinetics of electron thermalization is…

等离子体物理 · 物理学 2021-03-31 B. Breizman , G. Stupakov , G. Vekstein

Experimental studies of electron-ion collision rates in an ultracold neutral plasma (UNP) can be conducted through measuring the rate of electron plasma oscillation damping. For sufficiently cold and dense conditions where strong coupling…

等离子体物理 · 物理学 2020-01-29 Puchang Jiang , John Guthrie , Jacob L. Roberts

As proved by previous study, the similarity of electromagnetic processes in plasmas will be violated by Coulomb collisions between electron and ions. Therefore, there is no similarity in highly ionized collisional plasma. But the situation…

等离子体物理 · 物理学 2022-01-26 Jiansheng Yao , Yingkui Zhao , Hantian Zhang , Difa Ye , Biyao Ouyang

A detailed simple model is applied to study a high temperature plasma ball. It is assumed that the ions and delocalized electrons are distributed randomly throughout the charged plasma ball (extra/missing charge is assumed to be found in a…

等离子体物理 · 物理学 2007-10-18 Yuri Kornyushin

A Rydberg gas of NO entrained in a supersonic molecular beam releases electrons as it evolves to form an ultracold plasma. The size of this signal, compared with that extracted by the subsequent application of a pulsed electric field,…

化学物理 · 物理学 2015-03-13 C. J. Rennick , J. P. Morrison , J. Ortega-Arroyo , P. J. Godin , N. Saquet , E. R. Grant

Simulations and diagnostics of high-energy-density plasmas and warm dense matter rely on models of material response properties, both static and dynamic (frequency-dependent). Here, we systematically investigate variations in dynamic…

We study processes at the transition region between hot (rare) and cold (dense) plasma in the collisionless regime. We use a 3-dimensional electromagnetic particle-in-cell (3-D PIC) relativistic code. Motivated by the transition region in…

太阳与恒星天体物理 · 物理学 2017-09-25 Marian Karlicky , Frantisek Karlicky

The hot and dense matter generated in heavy-ion collisions may contain domains which are not invariant under P and CP transformations. Moreover, heavy-ion collisions can generate extremely strong magnetic fields as well as electric fields.…

核理论 · 物理学 2016-06-15 Xu-Guang Huang

The method of moments is used to calculate the dynamic conductivity of strongly coupled fully ionized hydrogen plasmas. The electron density $n_{e}$ and temperature $T$ vary in the domains $ 10^{21} < n_{e} < 10^{24} {\rm cm}^{-3}$, $10^{4}…

等离子体物理 · 物理学 2013-03-05 V. M. Adamyan , A. A. Mihajlov , N. M. Sakan , V. A. Sreckovic , I. M. Tkachenko

The electrical discharge plasma in methane is used in many fields of technology and the knowledge of the electron impact cross sections with the molecule of this gas is necessary for the modeling, which represents a good tool for…

等离子体物理 · 物理学 2023-03-01 Abdelatif Gadoum , Djilali Benyoucef , Rachid Taleb

The kinetic theory for the cylindrical plasma, produced by the cylindrically symmetric (azimuthal mode number m=0) helicon wave, is developed with accounting for the cylindrical geometry and the radial inhomogeneity of the helicon wave and…

等离子体物理 · 物理学 2022-02-08 V. V. Mikhailenko , Hae June Lee , V. S. Mikhailenko

The oscillation-center Hamiltonian is derived for a relativistic electron injected with an arbitrary momentum in a linearly polarized laser pulse propagating in tenuous plasma, assuming that the pulse length is smaller than the plasma…

等离子体物理 · 物理学 2015-05-13 V. I. Geyko , G. M. Fraiman , I. Y. Dodin , N. J. Fisch

The collision cross sections (CCS), momentum transfer cross sections (MTCS), or scattering cross sections (SCS) of an electron neutral pair are important components for computing the electric conductivity of a plasma gas. Larger collision…

等离子体物理 · 物理学 2023-10-18 Osama A. Marzouk

We have shown that there exists low-frequency growing modes driven by a global temperature gradient in electron and ion plasmas, by linear perturbation analysis within the frame work of plasma Kinetic theory. The driving force of the…

天体物理学 · 物理学 2009-10-31 Makoto Hattori , Keiichi Umetsu