Two-stream instability in collisionless shocks and foreshock
... magnetosonic speed CMS = (VA2 + CS2 ) and the speed of light c. The satellite observations of Solar system shocks, e.g. by the Cluster mission [18–20] and numerous others, have shed considerable light on the shock dynamics. The Solar wind has a typical magnetic field of ≈5 nT and a plasma number den ...
... magnetosonic speed CMS = (VA2 + CS2 ) and the speed of light c. The satellite observations of Solar system shocks, e.g. by the Cluster mission [18–20] and numerous others, have shed considerable light on the shock dynamics. The Solar wind has a typical magnetic field of ≈5 nT and a plasma number den ...
The Salpeter plasma correction for solar fusion reactions
... literature. We can comment on some of their qualitative statements, with the caveat that we are not always sure how they have been implemented. The statements that we discuss below come from a recent summary “Why the Salpeter screening formula cannot be applied in the Sun”, Shaviv (2000). “Kinetic e ...
... literature. We can comment on some of their qualitative statements, with the caveat that we are not always sure how they have been implemented. The statements that we discuss below come from a recent summary “Why the Salpeter screening formula cannot be applied in the Sun”, Shaviv (2000). “Kinetic e ...
Synergistic effect of sterilization by microwave-excited atmospheric-pressure plasma jet using photo-catalyst TiO2 with H2O2 and distilled water
... Unlike UV-based sterilization methods, a significant synergy on the bactericidal effect is observed when the plasma is combined with TiO2 and H2O2 at a time. All the bacteria samples used in ~4´107 CFU/ml of concentration are destructed within 30 seconds. A kinetic simulation shows plenty of electro ...
... Unlike UV-based sterilization methods, a significant synergy on the bactericidal effect is observed when the plasma is combined with TiO2 and H2O2 at a time. All the bacteria samples used in ~4´107 CFU/ml of concentration are destructed within 30 seconds. A kinetic simulation shows plenty of electro ...
Double Layer Observations and role in particle acceleration
... Until now, they have not been observed with sufficient total potentials to matter VAP have seen huge numbers of double layers (7000 in one minute of data) that produced a total parallel potential crossing the spacecraft of 1,000,000 volts in six minutes during a spacecraft charging event You may not ...
... Until now, they have not been observed with sufficient total potentials to matter VAP have seen huge numbers of double layers (7000 in one minute of data) that produced a total parallel potential crossing the spacecraft of 1,000,000 volts in six minutes during a spacecraft charging event You may not ...
The influence of negatively charged, heavier
... Programme schedule, including activity diagram/ Bar chart:During the first six months of the first year we propose to derive the dispersion relation and investigate the stability of Alfven waves in a multi-ion plasma that specifically contains Oions since the discovery of these ions was an unexpecte ...
... Programme schedule, including activity diagram/ Bar chart:During the first six months of the first year we propose to derive the dispersion relation and investigate the stability of Alfven waves in a multi-ion plasma that specifically contains Oions since the discovery of these ions was an unexpecte ...
A novel mechanism for electron-cyclotron maser
... a much higher saturation level than the electrostatic wave. For a long time, it has been recognized that there is a basic difficulty in the propagation of the fast electron beam, sometimes referred to as Sturrock’s dilemma (Sturrock 1964). Based on the theory of the Langmuir instability, a fast electr ...
... a much higher saturation level than the electrostatic wave. For a long time, it has been recognized that there is a basic difficulty in the propagation of the fast electron beam, sometimes referred to as Sturrock’s dilemma (Sturrock 1964). Based on the theory of the Langmuir instability, a fast electr ...
Summary
... considered the equal initial inhomogeneous flow of dust and neutral components parallel to homogeneous magnetic field. We have derived the instability condition using the same method as in first. Our result might be useful in many situations of astrophysical magnetized dusty plasma namely comets an ...
... considered the equal initial inhomogeneous flow of dust and neutral components parallel to homogeneous magnetic field. We have derived the instability condition using the same method as in first. Our result might be useful in many situations of astrophysical magnetized dusty plasma namely comets an ...
Low energy Electron Collision with Polar Molecules HCl and HBr in
... a0-1. The Born Eikonal Series Approximation is used to calculate the differential scattering cross sections (DCS) for low energy the rotational excitation of target molecule like as HCL and HBr, using various values of “λ”. The results obtained are compared with the theoretical calculated Mohanan, e ...
... a0-1. The Born Eikonal Series Approximation is used to calculate the differential scattering cross sections (DCS) for low energy the rotational excitation of target molecule like as HCL and HBr, using various values of “λ”. The results obtained are compared with the theoretical calculated Mohanan, e ...
Collisionless interaction of an energetic laser produced plasma C. Constantin
... and astrophysical phenomena of interest, such as planetary bow-shocks, coronal mass ejections, and supernova remnants. 2 Experimental arrangement and diagnostics The experiments described here are performed at the Large Plasma Device (LAPD) at UCLA (Gekelman et al. 1991). The LAPD creates highly mag ...
... and astrophysical phenomena of interest, such as planetary bow-shocks, coronal mass ejections, and supernova remnants. 2 Experimental arrangement and diagnostics The experiments described here are performed at the Large Plasma Device (LAPD) at UCLA (Gekelman et al. 1991). The LAPD creates highly mag ...
Written Transcript of this video lesson
... A simple comparison between the gaseous state and plasma would result in the following points: Considering electrical conductivity; it is known that gases do not conduct electricity, while plasma is a good conductor. In relation to interaction; it is binary in gaseous state due to the collisions occ ...
... A simple comparison between the gaseous state and plasma would result in the following points: Considering electrical conductivity; it is known that gases do not conduct electricity, while plasma is a good conductor. In relation to interaction; it is binary in gaseous state due to the collisions occ ...
Kinetic aspects of the vortex-induced
... where is the Lorentz factor, c is the speed of light and the suffix j is the particle number. The charge density and the current density J is calculated by the PIC method. Using initial density N0 and in-plane magnetic field B0, normalizations are made as follows: the velocity, time, and length ...
... where is the Lorentz factor, c is the speed of light and the suffix j is the particle number. The charge density and the current density J is calculated by the PIC method. Using initial density N0 and in-plane magnetic field B0, normalizations are made as follows: the velocity, time, and length ...
Kein Folientitel
... Electron-acoustic instability Electron acoustic waves (electrostatic and associated with charge density fluctuations) can for example be generated by a two-component (hot and cold) drifting electron VDF, fulfilling the zero current condition: nhvdh + ncvdc= 0. The wave oscillates at the cold electr ...
... Electron-acoustic instability Electron acoustic waves (electrostatic and associated with charge density fluctuations) can for example be generated by a two-component (hot and cold) drifting electron VDF, fulfilling the zero current condition: nhvdh + ncvdc= 0. The wave oscillates at the cold electr ...
Interactions of Dust Bilayers in a GEC Plasma
... [email protected]). Lorin S. Matthews is with the Physics department at Baylor University, Waco, TX 76798 (email: [email protected]). Truell W. Hyde, is with the Center for Astrophysics, Space Physics & Engineering Research, and is Vice Provost of Research at ...
... [email protected]). Lorin S. Matthews is with the Physics department at Baylor University, Waco, TX 76798 (email: [email protected]). Truell W. Hyde, is with the Center for Astrophysics, Space Physics & Engineering Research, and is Vice Provost of Research at ...
The Larmor Formula
... associated with electrostatic collisions between charged particles (called Coulomb collisions) Note that the electrostatic force is long range E~1/r2 – thus electrostatic collisions between charged particles is a smooth continuous processes – unlike collision between balls on a pool table ...
... associated with electrostatic collisions between charged particles (called Coulomb collisions) Note that the electrostatic force is long range E~1/r2 – thus electrostatic collisions between charged particles is a smooth continuous processes – unlike collision between balls on a pool table ...
Twin-Double Layer Structure Producing Tailward Ion
... be noted that a portion from the Q+ ions, that move at random, will certainly be subject to pitch angle scattering and will finally precipitate into the ionosphere. As we shall argue later on the magnetotail region characterized by rg ≤ Rc < 9 rg is acting like an ion donor in a p-type semi-conducto ...
... be noted that a portion from the Q+ ions, that move at random, will certainly be subject to pitch angle scattering and will finally precipitate into the ionosphere. As we shall argue later on the magnetotail region characterized by rg ≤ Rc < 9 rg is acting like an ion donor in a p-type semi-conducto ...
Mike Zellner
... of high Z dopants • Inner electrons are held tightly and at the correct temperature, the high Z dopants become hydrogenic • The outer surface of the micro-balloon is ablated causing the inner surface of the micro-balloon to compress the plasma ...
... of high Z dopants • Inner electrons are held tightly and at the correct temperature, the high Z dopants become hydrogenic • The outer surface of the micro-balloon is ablated causing the inner surface of the micro-balloon to compress the plasma ...
Return-current formation in the electron beam – plasma system
... Furthermore, the return current modifies the electron distribution function in the low corona and influences the intensities of the EUV and soft X-ray lines observed during solar flares (see Dzifčáková and Karlický, 2008). In all the above mentioned papers the return current have been considered ...
... Furthermore, the return current modifies the electron distribution function in the low corona and influences the intensities of the EUV and soft X-ray lines observed during solar flares (see Dzifčáková and Karlický, 2008). In all the above mentioned papers the return current have been considered ...
Kinetic Studies of Nonrelativistic Young Supernova Remnant
... electric field Ey (left panel), and the new setup with a transition zone (right panel), both after 10000 time steps. The middle of the simulation box is at x = 10000 and the edges of the two plasmas started - in this demonstration simulation - at x = 8000 and x = 12000. The void between the two plas ...
... electric field Ey (left panel), and the new setup with a transition zone (right panel), both after 10000 time steps. The middle of the simulation box is at x = 10000 and the edges of the two plasmas started - in this demonstration simulation - at x = 8000 and x = 12000. The void between the two plas ...
ng - CAPCA
... second field generation mechanism: – Displaces plasma electrons – Plasma ions try to restore neutrality: space charge oscillation ...
... second field generation mechanism: – Displaces plasma electrons – Plasma ions try to restore neutrality: space charge oscillation ...
Considerations on the use of atmospheric pressure plasma to generate complex molecular environments with relevance for molecular astrophysics
... molecular clouds are of particular interest, even they represent less than 1% of total medium. The matter present in the interstellar medium is represented mainly by atoms and molecules; a small fraction is represents by carbon and silicon based grains. Biogenic elements (i.e. O, C and N) abundance ...
... molecular clouds are of particular interest, even they represent less than 1% of total medium. The matter present in the interstellar medium is represented mainly by atoms and molecules; a small fraction is represents by carbon and silicon based grains. Biogenic elements (i.e. O, C and N) abundance ...
Slides - GSI Indico
... damping and production rates, transport coefficients, energy loss, … Apart from color factors similar calculations and results as in the case of an electron-positron plasma 2. Lattice QCD: non-perturbative method Valid also for large coupling Only static quantities (critical temperature, order of ph ...
... damping and production rates, transport coefficients, energy loss, … Apart from color factors similar calculations and results as in the case of an electron-positron plasma 2. Lattice QCD: non-perturbative method Valid also for large coupling Only static quantities (critical temperature, order of ph ...
CIII 97.7 nm - Astronomy at Swarthmore College
... - Preliminary results from temperature modeling using the CIII 97.7 nm / CIV 155 nm line ratio give an average plasma temperature of 25 eV early in counter-helicity shots (at right), increasing to 35 eV during magnetic reconnection (the counter-helicity configuration maximizes the amount of energy r ...
... - Preliminary results from temperature modeling using the CIII 97.7 nm / CIV 155 nm line ratio give an average plasma temperature of 25 eV early in counter-helicity shots (at right), increasing to 35 eV during magnetic reconnection (the counter-helicity configuration maximizes the amount of energy r ...
SPACE CHARGE & Jets
... tracer test particles were suspended against gravity by the space charge formed at the equator of a DC-glow discharge plasma (purple) surrounding a NdFeB disk magnet (black). The dust was illuminated from the left with a scanned 532nm diode laser. Tray with unsuspended dust is visible below the magn ...
... tracer test particles were suspended against gravity by the space charge formed at the equator of a DC-glow discharge plasma (purple) surrounding a NdFeB disk magnet (black). The dust was illuminated from the left with a scanned 532nm diode laser. Tray with unsuspended dust is visible below the magn ...
Plasma Astrophysics
... Basic parameters • For ensemble of N particles of mass m and velocity v, average energy per particle is ...
... Basic parameters • For ensemble of N particles of mass m and velocity v, average energy per particle is ...
Langmuir probe
A Langmuir probe is a device used to determine the electron temperature, electron density, and electric potential of a plasma. It works by inserting one or more electrodes into a plasma, with a constant or time-varying electric potential between the various electrodes or between them and the surrounding vessel. The measured currents and potentials in this system allow the determination of the physical properties of the plasma.