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Recent Progress in Development New Generation Erosion Plasma Sources
Alexey A. Goncharov;Volodymyr Yu Bazhenov;Alexey S. Bugaev;Andrii M. Dobrovolskiy;Vasiliy I. Gushenets;Irina V. Litovko;Iryna V. Naiko;Efim M. Oks
This is a brief review of the current status of study and progress in devices for a new generation of plasma-dynamic tools based on combining a vacuum-arc plasma source with an axially symmetric cylindrical electrostatic plasma-optical lens into a single device. The combined system operates using the basic plasma-optical principles of magnetic electron isolation and equipotentialization along magn...Show More
Advanced Vacuum Arc Plasma Source: Principles and Perspective Applications
Alexey Goncharov;Andriy Dobrovolskiy;Irina Naiko;Vladimir Bazhenov;Vasiliy Gushenets;Efim Oks;Alexey Bugaev;Irina Litovko
2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Year: 2018 | Conference Paper |
Cited by: Papers (1)
A combined system including a MEVVA plasma source with a cylindrical electrostatic plasma-optical lens is considered for the first time. This combined system is of fundamental interest and could be attractive for a number of practical applications. The system can be used for effective repetitively pulsed, high current, moderate energy plasma sources of heavy metal ions and electrons. The hardware ...Show More
Modes of plasma-dynamical system with closed electron drift and open walls
A. A. Goncharov;A. N. Dobrovolskiy;I. V. Naiko;L. V. Naiko;I. V. Litovko
2017 IEEE International Young Scientists Forum on Applied Physics and Engineering (YSF)
Year: 2017 | Conference Paper |
Cited by: Papers (3)
The research results of a plasma accelerator which includes a cross electromagnetic field and open walls were considered. For this system, theoretical calculations for the dynamics of ions and electrons were conducted. It was established that a one-dimensional hydrodynamic model, according to the principles of equipotentialization of field lines, well describes experimental data. It was shown that...Show More
Space charge plasma optic devices: New applications in vacuum arc technology
E. M. Oks;V. I. Gushenets;A. S. Bugaev;A. A. Goncharov;A. N. Dobrovolskiy;I. V. Litovko
2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Year: 2016 | Conference Paper |
This is a brief review of last results of ongoing research of the new generation plasma optic devices on base of wide aperture cylindrical electrostatic plasma lens, that open up novel possibility for effective practical applications in modern high-tech. The most attractive new applications are removing microparticles from vacuum arc plasma stream as well as focusing large-area intensive electron ...Show More
Low energy electron beam transport with a space charge lens
V. I. Gushenets;A. A. Goncharov;A. N. Dobrovolskiy;I. V. Litovko;E. M. Oks
2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Year: 2014 | Conference Paper |
Cited by: Papers (1)
Pulsed electron beams with high (1÷100 J/cm2) energy density are used in various processes involved in structural and functional modification of surface properties of materials and products. One of the main problems of successful electron beam application is to develop reliable and efficient methods of transport and manipulation of electron beams with high energy density. The paper presents new ex...Show More
Electrostatic Plasma Lens Focusing of an Intense Electron Beam in an Electron Source With a Vacuum Arc Plasma Cathode
Vasily I. Gushenets;Alexey A. Goncharov;Andrey M. Dobrovolskiy;Sergey P. Dunets;Irina V. Litovko;Efim M. Oks;Alexey S. Bugaev
In this paper, we present the research results on focusing and transport of an intense (up to 100 A) nonrelativistic (up to 20 kV) pulsed electron beam using an axially symmetric device with a high-current plasma lens configuration. The electron source is based on electron extraction from the plasma of a hollow-anode vacuum arc discharge. The arc is initiated by a dielectric surface flashover. The...Show More
Plasma lens focusing of an intense electron beam formed by a vacuum arc plasma electron source
V. I. Gushenets;A. A. Goncharov;A. M. Dobrovolskiy;S. P. Dunets;I. V. Litovko;E. M. Oks;A. S. Bugaev
2012 25th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
Year: 2012 | Conference Paper |
This paper presents research results on focusing and transport of an intense (up to 100 A) nonrelativistic (up to 20 kV) pulsed electron beam using a positive space charge plasma lens. The electron source is based on electron extraction from the plasma of a hollow-anode vacuum arc discharge. The arc is initiated by a dielectric surface flashover. The emission hole is covered with a fine mesh grid....Show More
Positive-Space-Charge Lens for Focusing and Manipulating High-Current Beams of Negatively Charged Particles
Andrey M. Dobrovolsky;Sergey P. Dunets;Anton N. Evsyukov;Alexey A. Goncharov;Vasiliy I. Gushenets;Irina V. Litovko;Efim M. Oks
We describe a new approach for the creation of effective axially symmetric plasma tools for focusing and manipulating high-current negatively charged particle beams, negative ions, and electrons. This approach is based on the fundamental plasma-optical concept of magnetic and electrostatic insulation of electrons and nonmagnetized positive ions providing controlled uncompensated positive-space-cha...Show More
The positive space charge lens for focusing and manipulating high-current beams of negatively charged particles (review)
A. Goncharov;A. Dobrovolskiy;S. Dunets;A. Evsyukov;V. Gushenets;V. Goretskiy;I. Litovko;E. Oks;I. Soloshenko
We describe a new approach for creation of effective axially symmetric plasma tools for focusing and manipulating high-current negatively charged particles beams, electrons and negative ions. This approach is based on the fundamental plasma optical concept of magnetic and electrostatic insulation of electrons, and non-magnetized positive ions providing controlled uncompensated positive space charg...Show More
Advances in Novel Plasma Devices Based on the Plasma Lens
We review some new results in the development of novel cylindrical plasma devices based on the electrostatic plasma lens configuration and the concepts of electron magnetic insulation and magnetic field line equipotentialization. The plasma lens configuration of crossed electric and magnetic fields provides an attractive method for establishing a stable plasma discharge at low pressure. Use of the...Show More
Development of novel plasma devices based on the plasma lens configuration
2008 23rd International Symposium on Discharges and Electrical Insulation in Vacuum
Year: 2008 | Conference Paper |
Here is a brief review some new results of development novel generation cylindrical plasma devices based on an idea of magnetic insulation electrons and an electrostatic plasma lens configuration. The axial-symmetric plasma lens is a well-explored device for manipulating high current, heavy ion beams, that has been used to preference to focus wide-aperture, heavy metal ion beams such as produced b...Show More
Computer simulation for ion sources optimization
2008 IEEE 35th International Conference on Plasma Science
Year: 2008 | Conference Paper |
Computer simulation for ion sources optimization used for ion implantations is reported. Highly stripped ion source is designed to provide high current beams of multiply charged phosphorous and boron ions for high energy ion implantation. Maximum current transport for boron ions is obtained with the optimisation of geometries of the ion-optical system and experimental setup. The maximum attainable...Show More
Advancing of novel plasma devices based on the plasma lens
2008 IEEE 35th International Conference on Plasma Science
Year: 2008 | Conference Paper |
In this paper a brief review of some new results of development novel generation cylindrical plasma devices based on the idea of magnetic insulation electrons and an electrostatic plasma lens configuration. The operation and features of some cylindrical plasma devices, based on plasma lens configuration, the results of theoretical consideration plasma dynamical discharges characteristics and exper...Show More
Model of Discharge in Crossed ExH-Fields with Closed Electron Drift Under Low Pressure
2007 IEEE 34th International Conference on Plasma Science (ICOPS)
Year: 2007 | Conference Paper |
Summary form only given. The self-consistent two dimensional model of discharge in cross ExH-fields with closed electrons drift had been creating and results from the model arc presented. The system of equations is solved numerically using a finite difference technique. The distribution of electron density, temperature, current density and potential in spatial layer had been obtained for various p...Show More
Computer Simulation of Beam Extraction and Transport for Vacuum Arc Based Ion and Electron Sources
2006 International Symposium on Discharges and Electrical Insulation in Vacuum
Year: 2006 | Conference Paper |
The simulation of the extraction of charge particle beam from a vacuum arc based source has been used for investigation of the beam quality and optimization for specific application possibilities. A few examples are used to demonstrate the capabilities and limits of these simulations. The simulation can provide the basis for optimizing the extraction system and acceleration gap for source and for ...Show More
Beam extension in longitudinally heterogeneous systems
XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.
Year: 2004 | Conference Paper |
Investigation of initial perturbation evolution of beam particles in beam-plasma system with inhomogeneous dielectrical permittivity along their propagation is interesting for description of many problems. Medium parameters along direction of beam extension in beam-plasma systems are not constant very often. If beam is expansion its density and compensate charge particle density are reducing in pr...Show More
Beam instability in longitudinally inhomogeneous systems
The 31st IEEE International Conference on Plasma Science, 2004. ICOPS 2004. IEEE Conference Record - Abstracts.
Year: 2004 | Conference Paper |
Summary form only given. Investigation of initial perturbation evolution of beam particles in beam-plasma system with inhomogeneous dialectical transparence along their propagation is interesting for description of many problems. Media parameters along direction of beam propagation in beam-plasma systems are not constant very often. If beam is expansion its density and compensate charge particle d...Show More
Focusing properties of a permanent magnet plasma lens
I. Protsenko;A. Goncharov;V. Gorshkov;S. Gubarev;I. Litovko;I. Brown
20th International Symposium on Discharges and Electrical Insulation in Vacuum
Year: 2002 | Conference Paper |
Cited by: Papers (2)
We describe some experimental investigations of the focusing properties of an electrostatic plasma lens based on the use of permanent magnets instead of conventional current-driven coils. These investigations were performed at the IP NASU (Kiev) and at the LBNL (Berkeley) using moderate energy, high current, broad, heavy ion beams. Computer simulation of physical processes involved for typical exp...Show More
Summary form only given, as follows. The plasma lens (PL) is the axial symmetrical plasma-optical system, which transforms longitudinal electric field in to transversal one, the latter focuses and controls ion beams. The plasma lens is useful for fundamental investigations of properties of plasma-optical systems as well as for practical applications for ion beam focusing. Early the static and dyna...Show More
Evolution of 2D electron vortices structures in crossed ExH-fields high-current plasma lens
Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)
Year: 2000 | Conference Paper |
We describe formation, stable existence and dynamics of 2D electron vortices structures in crossed electric and magnetic fields. As has been shown earlier on, the example of high-current plasma lens, the disturbed motion of electrons in variable electric fields caused by the principally irremovable radial gradient of the magnetic field axial component is transformed into the set of single vortexes...Show More
Experimental investigations of electron wave structures in high-current plasma lens
S. Gubarev;A. Goncharov;A. Dobrovolskii;I. Litovko;I. Protsenko
Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)
Year: 2000 | Conference Paper |
The authors describe experimental investigations the dispersion characteristics of electron oscillations exciting owing to drift instability in a high-current plasma lens. The experiments were carried out using heavy metal ion beams of copper and carbon with energy up to 18 keV, beam current up to 0.5 A, duration 100 /spl mu/s produced by the MEWA kind ion source. It is shown that under the passin...Show More
Development dynamics of the 2-D vortex structures in high-current plasma lens
ICOPS 2000. IEEE Conference Record - Abstracts. 27th IEEE International Conference on Plasma Science (Cat. No.00CH37087)
Year: 2000 | Conference Paper |
Summary form only given. In this paper we are consider plasma lens (PL) hydrodynamic instability in the nonlinear approximation. It is shown that ion-electron instability in the high-current PL caused by the radial gradient of the magnetic field axial component can lead to the creation of electron vortices. The nonlinear differential equation for the electrical potential has been obtained. One des...Show More
Electron vortexes in high-current plasma lens
High-current plasma lens (PL) instability of two-dimensional oscillations caused by unremovable radial gradients of the magnetic field and fast ion beams are considered. It is supposed that electron motion is nonlinear and ion motion is linear. The nonlinear differential equation of the electric potential in a hydrodynamical approximation is obtained and its solutions are found for different confi...Show More
Moderate energy metal ion beam focusing by a high-current plasma lens
A.A. Goncharov;S.M. Gubarev;A.N. Dobrovoiskii;I.M. Protsenko;I.V. Litovko;I.G. Brown
Some features of the electrostatic plasma lens as applied to the focusing of moderate-energy, high-current, wide-aperture metal ion beams have been investigated and are described here. Static characteristics within the plasma lens volume have been explored. It is shown that when the potentials applied to the lens electrodes are held constant, the electric field increase with increasing ion beam cu...Show More
Magnetically insulated ion diode in plasma optical mode
12th International Conference on High-Power Particle Beams. BEAMS'98. Proceedings (Cat. No.98EX103)
Year: 1998 | Conference Paper |
The magnetically insulated diode gap in the plasma optical mode (MDG) is a special case of the one-dimensional DG with magnetized electrons and free ions.Show More
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