All Russian Electrotechnical Institute

Moscow, Russia

All Russian Electrotechnical Institute

Moscow, Russia
SEARCH FILTERS
Time filter
Source Type

Chikhachev A.S.,All Russian Electrotechnical Institute
24th Russian Particle Accelerator Conference, RuPAC 2014 | Year: 2014

One of the problems arising at extraction of heavy ions from plasma is removal of electrons from a stream of particles. Therefore possibility of simultaneous acceleration in one direction as ions (electric field), and electrons (pressure gradient) is represented rather interesting. In work when using the hydrodynamic description in the accelerating interval conditions of cold ions and hot electrons are studied. Possibility of excess by ions of speed of an ionic sound is shown, and the ratio of sizes of streams of electrons and ions can be any. © 2014 CC-BY-3.0 and by the respective authors.


Movsesyants Y.B.,All Russian Electrotechnical Institute | Tyuryukanov P.M.,All Russian Electrotechnical Institute
Plasma Physics Reports | Year: 2014

It is shown that the two-fluid electrohydrodynamic equations for a transversely homogeneous flow of cold ions and Boltzmannian electrons in the ion-acoustic region are reduced to the Boussinesq equation. Using a two-soliton solution as an example, the nonlinear mechanism of collisionless relaxation of a supersonic plasma flow toward a steady state in the form of a double space charge layer is demonstrated. © 2014 Pleiades Publishing, Ltd.


Chikhachev A.S.,All Russian Electrotechnical Institute
2014 20th International Workshop on Beam Dynamics and Optimization, BDO 2014 | Year: 2014

Selfconsistent problem acceleration ions flow with present electron flow and cloud of electrons with zero average velocity are studied. One used kinetical description of electron flow in case, when distribution of electrons depends not only on integrals of motions. Cold ions can by accelerated to energy, exceed temperature of electrons. © 2014 IEEE.


Chikhachev A.S.,All Russian Electrotechnical Institute
Technical Physics | Year: 2014

The behavior of a nonstationary system of charged particles interacting with the self-field is studied using integrals of motion for nonstationary systems. Numerical solutions are obtained for the sets of equations describing the characteristics of a system of particles. A nonstationary self-consistent quantum system is also analyzed. The proposed model can be useful for investigating the acceleration of charged particles by the self-field. © 2014 Pleiades Publishing, Ltd.


Kovalenko Y.A.,All Russian Electrotechnical Institute | Chikhachev A.S.,All Russian Electrotechnical Institute
Technical Physics | Year: 2013

We study the acceleration of an ion flow in the electron layer formed by an electron flow moving in a transverse electric field and confined by the intrinsic magnetic field. The possibility of extraction of heavy ions with velocities lower than the ion sound velocity from the plasma, and the feasibility of their further acceleration by an external field is demonstrated. © 2013 Pleiades Publishing, Ltd.


Syrovoi V.A.,All Russian Electrotechnical Institute
Journal of Communications Technology and Electronics | Year: 2014

On the basis of the geometrized theory, an algorithm for calculating narrow spatial electrostatic beams is formulated. It consists in determining the metric and the transverse derivatives of the parameters of a flow on a rectilinear axis, which most often occurs in technical applications. © 2014 Pleiades Publishing, Inc.


Syrovoi V.A.,All Russian Electrotechnical Institute
Journal of Communications Technology and Electronics | Year: 2014

New exact solutions in special and elementary functions are obtained for axisymmetric nonrelativistic flows with one nonzero azimuthal velocity component and z-directed flows. © 2014 Pleiades Publishing, Inc.


Londer Y.I.,All Russian Electrotechnical Institute | Ulyanov K.N.,All Russian Electrotechnical Institute
IEEE Transactions on Plasma Science | Year: 2013

A 2-D mathematical model of the short vacuum arc discharge is developed that considers a hydrodynamic mode of electron motion and collision-free mode for motion of fast cathode ions in a 2-D electric field. The model takes into consideration an angle distribution of ions on the cathode plasma boundary. A method of calculation of plasma density distribution in the gap is proposed. 2-D distributions of discharge current density, plasma density, and electric field in an external longitudinal magnetic field are calculated. It is shown that intersections of ion trajectories take place and a part of ion trajectories returns to the cathode. As the value of the external magnetic field decreases, the number of ion trajectories returning to the cathode increases and the number of ion trajectories reaching the anode decreases. © 1973-2012 IEEE.


Matveev N.V.,All Russian Electrotechnical Institute
Conference Proceedings - International Conference on Actual Problems of Electron Devices Engineering, APEDE'2010 | Year: 2010

Structure optimization and the results of the functional modules development for high power modulator for klystrons, magnetrons, gyrotrons and other microwave vacuum devices are under discussion. Main goal is in the increasing of pulse form stability, breakdown protection and modulator's energy efficiency. The fields of preferable application for basic types of power switching devices in high power modulators are established. ©2010 IEEE.


Londer Y.I.,All Russian Electrotechnical Institute | Ulyanov K.N.,All Russian Electrotechnical Institute
Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV | Year: 2012

A model of the anode region of high-current vacuum is developed that explicitly takes into consideration the ratio of the drift velocity of the electrons in plasma v0 to their thermal velocity vT as a parameter of the electron velocity distribution function in the anode sheath. A transcendental equation for determining the value of the negative anode drop as a function of the ratio v0/vT is obtained. It is shown that in contrast to the well-known Langmuir formula the anode drop remains negative for any value of v0/vT relation. For small values of v0/vT << 1 the expression obtained passes asymptotically into the Langmuir formula. The dependence of the anode drop value on the current density is used as a boundary condition at the anode in solving the two-dimensional problems in the theory of short vacuum arc. In accordance with the Langmuir formula a region with a positive anode drop is formed at the anode when the current density increases. The results of present work show that the region with a positive anode drop is absent. © 2012 IEEE.

Loading All Russian Electrotechnical Institute collaborators
Loading All Russian Electrotechnical Institute collaborators