Whistler oscillitons revisited: the role of charge neutrality?
... Schrödinger (DNLS) equation as the typical nonlinear evolution equation. As is the case with the KdV or mKdV equations, the DNLS equation is a perfectly integrable nonlinear evolution equation, with an infinite number of conserved densities or first integrals, and hence with N -soliton solutions fo ...
... Schrödinger (DNLS) equation as the typical nonlinear evolution equation. As is the case with the KdV or mKdV equations, the DNLS equation is a perfectly integrable nonlinear evolution equation, with an infinite number of conserved densities or first integrals, and hence with N -soliton solutions fo ...
Related Solved Problems and Other Problems
... The table in question indicates that the dipole magnetic pressure at Mercury’s dayside magnetopause is approximately proportional to (ignoring dipole tilt effects) [MM /(1.4RM )3 ]2 (i.e. the magnetic pressure is proportional to the square of the expected field strength). Here MM is Mercury’s magnet ...
... The table in question indicates that the dipole magnetic pressure at Mercury’s dayside magnetopause is approximately proportional to (ignoring dipole tilt effects) [MM /(1.4RM )3 ]2 (i.e. the magnetic pressure is proportional to the square of the expected field strength). Here MM is Mercury’s magnet ...
Full-Wave Simulation of High-Frequency Electromagnetic
... well understood, yet is of importance for both microwave heating and diagnostic applications in tokamaks. The work presented in this thesis improves this understanding; for this purpose, EMIT-3D, a new finite-difference time-domain (FDTD) code implementing a cold-plasma model has been written to ext ...
... well understood, yet is of importance for both microwave heating and diagnostic applications in tokamaks. The work presented in this thesis improves this understanding; for this purpose, EMIT-3D, a new finite-difference time-domain (FDTD) code implementing a cold-plasma model has been written to ext ...
Power Point slides for Reporter Review
... Development and evolution of parallel potential drops and their relation to external conditions is still not well understood: our suspicion is that Alfvenic processes pre-condition auroral field lines to form quasi-static potentials (see, e.g., Song and Lysak, 2001). Relation of ion outflows to driv ...
... Development and evolution of parallel potential drops and their relation to external conditions is still not well understood: our suspicion is that Alfvenic processes pre-condition auroral field lines to form quasi-static potentials (see, e.g., Song and Lysak, 2001). Relation of ion outflows to driv ...
Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma
... to being used for heating high density plasmas in ICF schemes. Furthermore, since there exist huge magnetic fields27–29 in the cores of massive white dwarf stars and in ICF schemes, it is of practical interest to examine the consequences of ambient magnetic fields on the transport of electrons and t ...
... to being used for heating high density plasmas in ICF schemes. Furthermore, since there exist huge magnetic fields27–29 in the cores of massive white dwarf stars and in ICF schemes, it is of practical interest to examine the consequences of ambient magnetic fields on the transport of electrons and t ...
Simulations of Collisionless Perpendicular Shocks in Partially
... PACS numbers: 52.35.Tc; 52.65.Rr; 96.50.S-; 98.38.Mz ...
... PACS numbers: 52.35.Tc; 52.65.Rr; 96.50.S-; 98.38.Mz ...
Origin of Ion Cyclotron Waves in the Polar Cusp: Insights from
... and the cusp moves back and forth penetrating the Earth’s exosphere. The electric field of the moving plasma will accelerate any newly created protons ...
... and the cusp moves back and forth penetrating the Earth’s exosphere. The electric field of the moving plasma will accelerate any newly created protons ...
Cross-field flow and electric potential in a plasma slab
... adiabatic invariant that can be used when the magnetic field changes along z in a 2-dimensional configuration. The cutoff function used by these authors is a Heaviside function, which is the limit case for ` → 1. The introduction of electron distribution functions with cutoffs `− = 1 gives rise to v ...
... adiabatic invariant that can be used when the magnetic field changes along z in a 2-dimensional configuration. The cutoff function used by these authors is a Heaviside function, which is the limit case for ` → 1. The introduction of electron distribution functions with cutoffs `− = 1 gives rise to v ...
Estimation of pump-out and positive radial electric field created by
... particularity of being toroidally asymmetric. Besides the direct radiation measurements, the ECRH-induced flux also manifests itself through enhanced hollowness in the density profiles, usually accompanied by more peaked electron temperatures.2 This extra flux 共often called pump-out兲 can be explaine ...
... particularity of being toroidally asymmetric. Besides the direct radiation measurements, the ECRH-induced flux also manifests itself through enhanced hollowness in the density profiles, usually accompanied by more peaked electron temperatures.2 This extra flux 共often called pump-out兲 can be explaine ...
Evidence for high-energy and low-emittance electron beams using
... Ionization of helium on the lithium density ramp occurs primarily due to the transverse electric field of the electron beam. The transverse spot size of the mismatched electron beam oscillates as the electron beam undergoes betatron oscillation [16,17]. Once the transverse size of the beam gets suf ...
... Ionization of helium on the lithium density ramp occurs primarily due to the transverse electric field of the electron beam. The transverse spot size of the mismatched electron beam oscillates as the electron beam undergoes betatron oscillation [16,17]. Once the transverse size of the beam gets suf ...
Reprint
... wave vector k and an amplitude δEk based on a lowest order approximation gives ωb = (ek|δEk |/m)1/2 . The strongest mode in the simulation at the saturation level (t = 2000) would give a value of ωb about ten times greater than the observed frequency ωE . The oscillation of the fluctuating energy We ...
... wave vector k and an amplitude δEk based on a lowest order approximation gives ωb = (ek|δEk |/m)1/2 . The strongest mode in the simulation at the saturation level (t = 2000) would give a value of ωb about ten times greater than the observed frequency ωE . The oscillation of the fluctuating energy We ...
平成 24 年度 修士論文 Filamentary plasma formation modeling in cm
... In a microwave discharge, the primary ionization of the gas due to the electron motion is the only production mechanism that controls breakdown. Breakdown occurs when the gain in electron density due to the ionization of the gas becomes greater than the loss of electrons by diffusion, attachment to ...
... In a microwave discharge, the primary ionization of the gas due to the electron motion is the only production mechanism that controls breakdown. Breakdown occurs when the gain in electron density due to the ionization of the gas becomes greater than the loss of electrons by diffusion, attachment to ...
On the electron temperature downstream of the solar wind
... ofenergizathe Pastas it appears to us, this role is extremely important. UsuDiscussions tion processes, have rapidly cooled off to very low temperally it is assumed that ions and electrons remain in theratures once they eventually arrive at the solar wind termimodynamical equilibrium at the shock pa ...
... ofenergizathe Pastas it appears to us, this role is extremely important. UsuDiscussions tion processes, have rapidly cooled off to very low temperally it is assumed that ions and electrons remain in theratures once they eventually arrive at the solar wind termimodynamical equilibrium at the shock pa ...
Patent-description-adapted
... In above mentioned patent application an extensive description and several claims were made related to new plasma reactors.  This new patent-application contains many of the basic ideas disclosed and claimed in EP 05447221 in more detailed way or in variations. There are also methods described whi ...
... In above mentioned patent application an extensive description and several claims were made related to new plasma reactors.  This new patent-application contains many of the basic ideas disclosed and claimed in EP 05447221 in more detailed way or in variations. There are also methods described whi ...
The amonalous transport in plasmas
... The purpose of the study is to describe the combined effects on the ions transport of ITG instability and resonant interaction between ions and waves in the ion cyclotron range of frequencies (ICRF) [11], [12]. The issue is important in establishing a more realistic dispersion relation for ITG insta ...
... The purpose of the study is to describe the combined effects on the ions transport of ITG instability and resonant interaction between ions and waves in the ion cyclotron range of frequencies (ICRF) [11], [12]. The issue is important in establishing a more realistic dispersion relation for ITG insta ...
Radio and X-ray signatures of merging neutron stars
... cos a ), i.e. c is the polar angle in the frame aligned with V and rotating with the neutron star. This charge density is stationary in the frame of the neutron star while in the laboratory frame it yields an additional surface current j srot V r: The magnetic field resulting from this current i ...
... cos a ), i.e. c is the polar angle in the frame aligned with V and rotating with the neutron star. This charge density is stationary in the frame of the neutron star while in the laboratory frame it yields an additional surface current j srot V r: The magnetic field resulting from this current i ...
Abstract book - 44th IOP Plasma Physics Conference
... (Invited) The role of turbulence in tokamak edge transport I Cziegler University of York, UK Turbulence has long been known to dominate cross-field transport in toroidal magnetic confinement devices. As such, the ubiquitously observed regimes of global confinement are various states of turbulence. ...
... (Invited) The role of turbulence in tokamak edge transport I Cziegler University of York, UK Turbulence has long been known to dominate cross-field transport in toroidal magnetic confinement devices. As such, the ubiquitously observed regimes of global confinement are various states of turbulence. ...
Quantum Plasmas - Bucharest Brahms Page
... Plasma was first identified in a Crookes tube, and so described by Sir William Crookes in 1879 (he called it "radiant matter"). The nature of the Crookes tube "cathode ray" matter was subsequently identified by British physicist Sir J.J. Thomson in 1897.The term "plasma" was coined by Irving Langmui ...
... Plasma was first identified in a Crookes tube, and so described by Sir William Crookes in 1879 (he called it "radiant matter"). The nature of the Crookes tube "cathode ray" matter was subsequently identified by British physicist Sir J.J. Thomson in 1897.The term "plasma" was coined by Irving Langmui ...
Ion Temperature and Flow Velocity
... particles. The result is a diffuse, gaseous mixture of ions and electrons. Although superficially similar, gases and plasmas behave quite differently, primarily in their responses to electromagnetic fields. The constituent particles of ideal gases interact over length scales on the order of an atomi ...
... particles. The result is a diffuse, gaseous mixture of ions and electrons. Although superficially similar, gases and plasmas behave quite differently, primarily in their responses to electromagnetic fields. The constituent particles of ideal gases interact over length scales on the order of an atomi ...
parallel electric fields as acceleration mechanisms
... Note that, because of the divergence-free structure of ~, the integration along 71 gives the same result as an integration along any smooth line connecting the maximum of! to the region = 0. This result extends in a natural way the well-known result that the integral of the electric field along an X ...
... Note that, because of the divergence-free structure of ~, the integration along 71 gives the same result as an integration along any smooth line connecting the maximum of! to the region = 0. This result extends in a natural way the well-known result that the integral of the electric field along an X ...
Field-Induced Electron-Ion Recombination: A Novel Route towards Neutral (Anti-)matter V 84, N 17
... density of 2.5 3 106 cm23 (these numbers were experimentally realized) this observed interaction volume is 共1.2 6 1.0兲 3 10210 cm3 . A theoretical estimate of Vint is obtained by classically solving Newton’s equations, with a force equal to F共t兲 苷 q关E共t兲 1 v共t兲 3 B兾c兴. The electric field (E) is the ...
... density of 2.5 3 106 cm23 (these numbers were experimentally realized) this observed interaction volume is 共1.2 6 1.0兲 3 10210 cm3 . A theoretical estimate of Vint is obtained by classically solving Newton’s equations, with a force equal to F共t兲 苷 q关E共t兲 1 v共t兲 3 B兾c兴. The electric field (E) is the ...
An Ion Species Model for Positive Ion Sources – Part I Description of
... detail how these sources operate was never achieved although a general understanding of the filter was achieved [6]. The only significant difference between the sources used for proton (or deuteron) enhancement and those where H- or D- production is required is the reversal of the accelerator polari ...
... detail how these sources operate was never achieved although a general understanding of the filter was achieved [6]. The only significant difference between the sources used for proton (or deuteron) enhancement and those where H- or D- production is required is the reversal of the accelerator polari ...
Study of Runaway Electron Generation Process During Major
... further understanding of the trends of disruption induced runaway process. The reasons for spontaneous disruptions in JET were a consequence of the device operating near instability thresholds in safety factor, plasma pressure or plasma inductance in a wide range of toroidal magnetic field and plasm ...
... further understanding of the trends of disruption induced runaway process. The reasons for spontaneous disruptions in JET were a consequence of the device operating near instability thresholds in safety factor, plasma pressure or plasma inductance in a wide range of toroidal magnetic field and plasm ...
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.