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Collective Coherent Oscillation Plasma Modes in Surrounding
Collective Coherent Oscillation Plasma Modes in Surrounding

... chosen, for the sake of this picture, analogous to the Earth's fields. It is of interest to note that the magnetohydrodynamics and Coriolis forces of the plasma’s collective behaviors in this picture are similar to the process of sunspot formation and coronal ejection on our sun. Thereafter, close e ...
The  on­ quilibrium  ISIS
The  on­ quilibrium  ISIS

... Characteristics of our spectral code  (Ji PhD thesis 2006)   based on the updated atomic data (CHIANTI , APED) the atomic data and the code are  separate                                                                      ...
Laser ablation of organic materials for discrimination of
Laser ablation of organic materials for discrimination of

... for UV radiation, these local picks can not be due to absorption of laser energy by the plasma. They can however be due to ionized channels induced in air by UV laser pulses before hitting the sample surface. In fact, the probability of photoionization of air molecules (O2 and N2) by 266 nm radiatio ...
A Rigid-Field Hydrodynamics approach to modelling the
A Rigid-Field Hydrodynamics approach to modelling the

... hereafter TO05) expanded on previous work by Michel & Sturrock (1974) and Nakajima (1985) to develop a Rigidly Rotating Magnetosphere (RRM) model based on the simplifying ansatz that field lines are completely rigid. The RRM model does not consider the detailed physics of the wind streams feeding in ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.

... Lightning channels radiate electromagnetic energy covers a wide frequency range extending from a few hertz in the ELF range to beyond the visible region. Rai et al. [1] suggested that Bremsstrahlung might be the operating mechanism for radiation in the UHF or microwave region. Bremsstrahlung is a po ...
Electron acoustic solitons in the presence of an electron beam and
Electron acoustic solitons in the presence of an electron beam and

... extended their work to include the thermal effects of the cool electrons and mobile ions on electron-acoustic solitary waves. It is found that inclusion of finite temperature of the cold electrons alters the existence regime of the solitons and there is a significant decrease in solitary electric fi ...
swirl acceleration in a quasi-steady mpd thruster by applied
swirl acceleration in a quasi-steady mpd thruster by applied

... October 31 – November 4, 2005 Yoichi Kagaya * and Hirokazu Tahara.† ...
test particle energization by current sheets and nonuniform fields in
test particle energization by current sheets and nonuniform fields in

... fully resolved for the moderate Reynolds numbers considered. After 2t0 times, a turbulent state with a range of scales from L to ld  L=32 has been developed (recall here that some room has been made in the simulation box to contain about six energy-containing scales L, so about 2 orders of magnitud ...
chapter i - Trace: Tennessee Research and Creative Exchange
chapter i - Trace: Tennessee Research and Creative Exchange

... Introduction and General Information Plasma can be defined as quasi-neutral ionized gas with a roughly equal number of positively and negatively charged particles. This collection of free-moving electrons and ions makes electromagnetic effects important for the plasma physical behavior. Unlike gasse ...
parallel plate capacitor simulation and transverse oscillation of
parallel plate capacitor simulation and transverse oscillation of

... plasma itself can give rise to other forces. When a plasma comes into contact with a surface, the surface absorbs some of the electrons and ions from the plasma, creating a non-neutral region of space: an electric field [2]. There is also a Yukawa interparticle repulsion between dust particles. The ...
REVIEW ARTICLE Plasma sources based on the propagation of
REVIEW ARTICLE Plasma sources based on the propagation of

Kinetic simulations of 3-D reconnection and magnetotail disruptions
Kinetic simulations of 3-D reconnection and magnetotail disruptions

... move under the influence of the combined magnetic fields. This leads to an initial earthward flow, which then stabilizes with the ion distribution experiencing no net force (Pritchett and Coroniti, 1995). The electrons are then initialized at the same spatial coordinates as the ions with a Maxwellia ...
Evidence for Particle Acceleration During Magnetospheric Substorms
Evidence for Particle Acceleration During Magnetospheric Substorms

... caused by the influx of 5-10 keV electrons (Mcllwain 1960). Subsequent investigations found that most of the incoming energy was in the form of a "near-monoenergetic beam" superposed on a broader Maxwellian spectrum (Evans 1968; Westerlund 1968). Low-altitude satellite observations of substorm auror ...
No Slide Title
No Slide Title

... * http://www.microsi.com/photolithography/data_sheets/CEM%20365iS%20Data%20Sheet% ...
Possibility of magnetospheric VLF response to atmospheric infrasonic waves
Possibility of magnetospheric VLF response to atmospheric infrasonic waves

... numerically by Tsuruda (1973) based on computing the sigHere, n is the density of charged particles, B is the mag- nal at the Earth’s surface. netic field, m e,i are the electron and ion masses, qe,i are the In this paper, we analyze analytical expressions for the electron and ion charges, ue,i ar ...
A model for electromagnetic extraction of rotational energy and
A model for electromagnetic extraction of rotational energy and

... 1) what is the content of these jets? Specifically, are they made of electron-positrons (e− /e+ ), electron-protons (e− /p) or a mixture of both. 2) How significant is the role of the central object in the formation and acceleration of jet-plasmas? It is generally accepted that electron temperature ...
- Lorentz Center
- Lorentz Center

... All models based on runaway breakdown It is driven by a static electric field due to:  Unbalanced charges following a lightning stroke [Bell el., 1995; Lehtinen et al., 1996, 1999, 2001; Taranenko and Roussel-Dupre, 1996; Roussel-Dupre and Gurevich, 1996; Yukhimuk et al., 1999]  A static electric ...
Energy transport in a shear flow of particles in a two
Energy transport in a shear flow of particles in a two

... of micron-size particles of solid matter, neutral gas atoms, free electrons, and free positive ions. These particles of solid matter, which are referred to as “dust particles,” gain a large negative charge Q, which is about −104 elementary charges under typical laboratory conditions. The motion of t ...
perpendicular shocks
perpendicular shocks

... with supernova remnants, can excite waves capable of accelerating electrons to beyond the required injection energies. The wave group velocity along the shock normal can be approximately equal to the shock velocity: such waves are not rapidly convected away from the shock, and can thus grow to a hig ...
A Review of Fusion and Tokamak Research Towards Steady
A Review of Fusion and Tokamak Research Towards Steady

... neutron to form deuterium can be treated as a two-body problem of nuclear force between neutron and proton originated from the meson exchange forces, as predicted by Japanese Nobel Prize Winner Hideki Yukawa (1907–1981). He explained this strong force as an exchange force of a finite mass meson to g ...
Electron and Ion Dynamics of the Solar Wind Interaction with a
Electron and Ion Dynamics of the Solar Wind Interaction with a

... As the cometary outgassing activity increases, plasmaneutral collisions will play an increasingly significant role in shaping the ionized cometary environment. Collisions account for two significant processes in the context of mass-loaded plasmas: ion-neutral friction and electron cooling. When the ...
Characteristics of quasi-static potential structures observed in the
Characteristics of quasi-static potential structures observed in the

... quasi-static electric fields and associated electric potential structures in the return current region are discussed using Cluster observations at geocentric distances of about 5 Earth radii. Results are presented from four Cluster encounters with such acceleration structures to illustrate common as ...
ABSTRACT Title of Document:
ABSTRACT Title of Document:

... Two solutions have been proposed for overcoming diffraction: self focusing [32, 33, 55-59]and plasma channel guiding [34],. Both work by creating a higher index of refraction along the axis of the laser pulse than at the edges, thus slowing the wave phase front on axis relative to those at the edge ...
CLIC_meeting270209
CLIC_meeting270209

... high gradient electric field, as well as the evaporation of atoms from the rough features formed on the surface at the lower fields ...
Numerical Studies of Spacecraft-Plasma Interaction: Simulations of
Numerical Studies of Spacecraft-Plasma Interaction: Simulations of

... Space and phenomena in the sky have fascinated mankind for millennia. With the invention of the telescope and its further development, discoveries revealing some of the mysteries of our solar system, galaxy and the whole universe have been made. Nevertheless, it was not until the satellite era, whic ...
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Plasma (physics)



Plasma (from Greek πλάσμα, ""anything formed"") is one of the four fundamental states of matter, the others being solid, liquid, and gas. A plasma has properties unlike those of the other states.A plasma can be created by heating a gas or subjecting it to a strong electromagnetic field applied with a laser or microwave generator. This decreases or increases the number of electrons, creating positive or negative charged particles called ions, and is accompanied by the dissociation of molecular bonds, if present.The presence of a significant number of charge carriers makes plasma electrically conductive so that it responds strongly to electromagnetic fields. Like gas, plasma does not have a definite shape or a definite volume unless enclosed in a container. Unlike gas, under the influence of a magnetic field, it may form structures such as filaments, beams and double layers.Plasma is the most abundant form of ordinary matter in the Universe (the only matter known to exist for sure, the more abundant dark matter is hypothetical and may or may not be explained by ordinary matter), most of which is in the rarefied intergalactic regions, particularly the intracluster medium, and in stars, including the Sun. A common form of plasmas on Earth is seen in neon signs.Much of the understanding of plasmas has come from the pursuit of controlled nuclear fusion and fusion power, for which plasma physics provides the scientific basis.
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