Last edited by Vudokazahn
Tuesday, May 5, 2020 | History

3 edition of Plasma Cathode Electron Sources found in the catalog.

Plasma Cathode Electron Sources

Physics, Technology, Applications

by Efim Oks

  • 362 Want to read
  • 19 Currently reading

Published by Wiley-VCH .
Written in English

    Subjects:
  • Atomic & molecular physics,
  • Plasma physics,
  • Science,
  • Science/Mathematics,
  • Mechanics - Dynamics - Thermodynamics,
  • Science / Thermodynamics,
  • Plasma (Ionized gases)

  • The Physical Object
    FormatHardcover
    Number of Pages181
    ID Numbers
    Open LibraryOL9052973M
    ISBN 103527406344
    ISBN 109783527406340

    electron ejection from the cathode as the source of secondary electrons [32,33,35]. The role of heavy-particle-induced ionization has been most extensively investigated in the case of breakdown [56–60] of hydrogen and the cathode fall region [61] in low-pressure hydrogen discharges. A few investigators have indicated the importance of such a Cited by: Metal plasma immersion ion implantation needs a cathode arc discharge system, as shown in Fig A typical cathodic arc plasma source comprises two parts: a plasma production unit and a macro-particle filter. The characteristics of arc discharge are relatively high current (tens or hundreds of Amperes) and low voltage (10–80 V) between the cathode and anode.

    Hollow cathode plasma sources for large area surface treatment H. Barankova*, L. Bardos´´ ´ˇ Uppsala University, Angstrom Laboratory, Box , S 21 Uppsala, Sweden˚ ¨ Abstract Plasma generation over large areas using a hollow cathode discharge is described in File Size: KB. high electron mobility along the magnetic field direction makes it possible to place concentric anodes at the ends of the cathode. In essence, a cylindrical “virtual anode” extends Principles and Applications of Hollow Cathode Magnetron Sputtering Sources D.A. Glocker, Isoflux, Inc., Rush, NYFile Size: 74KB.

    •Bayard-Alpert type ion source •Electron Bombardment ion source •Hollow Cathode ion source •Reflex Discharge Multicusp source •Cold- & Hot-Cathode PIG •Electron Cyclotron Resonance ion source (ECR) •Electron Beam Ion Source (EBIS) •Surface Contact ion source •Cryogenic Anode ion source •Metal Vapor Vacuum Arc ion source (MEVVA) •Sputtering-type negative ion source. Abstract. In this study, an impedance model is formulated and tested for the ~1kV, ~1kA/cm 2, arc-plasma cathode electron source used for local helicity injection tokamak startup.A double layer sheath is established between the high-density arc plasma (n arc ≈ 10 21 m -3) within the electron source, and the less dense external tokamak edge plasma (n edge ≈ 10 18 m -3) into which current is.


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Plasma Cathode Electron Sources by Efim Oks Download PDF EPUB FB2

Concentrating equally on providing a physical understanding of the basic processes involved in plasma electron emission and on the design and applications of plasma cathode electron beam sources, this monograph is of interest to designers of electron sources as well as to scientists and engineers using electron beams in research and by: Efim Oks is head scientist of the Plasma Sources Department at the High Current Electronics Institute, Russian Academy of Sciences, Russia.

His work focuses on the twin areas of plasma cathode electron beam sources Plasma Cathode Electron Sources book vacuum arc ion beam sources and was awarded prestigiously. This book fills the gap for a textbook describing this kind of electron beam source in a systematic and thorough manner: from physical processes of electron emission to examples of real plasma electron sources and their : $   Efim Oks is head scientist of the Plasma Sources Department at the High Current Electronics Institute, Russian Academy of Sciences, Russia.

His work focuses on the twin areas of plasma cathode electron beam sources and vacuum arc ion beam sources. Concentrating equally on providing a physical understanding of the basic processes involved in plasma electron emission and on the design and applications of plasma cathode electron beam sources, this monograph is of interest to designers of electron sources as well as to scientists and engineers using electron beams in research and industry.

Plasma cathodes are used in large-cross-section electron beam sources. The cathode plasma is created by a low-pressure arc discharge with a hollow anode. operation of a plasma-cathode electron source. The discharge employed in plasma-cathode electron sources must provide generation of dense plasma in the region of electron extraction, at the lowest possible pressure.

From this standpoint the most suitable kinds of plasma sources are the hollow-cathode glow discharge, discharges Plasma Cathode Electron Sources book crossed electric. Electron beam treatment of non-conducting materials by a fore-pump-pressure plasma-cathode electron beam source.

Plasma Sources Science and Technology, Vol. 19, Issue. 5, p. Plasma Sources Science and Technology, Vol.

19, Issue. 5, p. Cited by: The plasma parameters and optical emission spectra were analyzed for various cathode temperatures and arc currents (electron temperature was – eV, local particle densities in plasma near the cathode were in range 10 11 –10 13 cm −3). The study is of interest for plasma sources development and increase of their efficiency as well as.

Discharge is maintained by positive ions extracting electrons from cathode Most of the voltage falls off close to the cathode Current increases by several orders of magnitude while voltage remains same. Glow discharge. Summer School, Warsaw 8. Control of Steady‐State Electron Current.

Control of Electron Emission in Pulsed Mode. Emission Characteristics of the Plasma of a Constricted Arc Discharge with an Extended Anode Section.

Electron Emission from Plasma at Fore‐Vacuum Pressures. Special Features of Electron Emission from Nonstationary Plasma. References. Efim Oks – Plasma Cathode Electron Sources: Physics, Technology, Applications Published: | ISBN: | PDF | pages | MB This book fills the gap for a textbook describing this kind of electron beam source in a systematic and thorough manner: from physical processes of electron emission to examples of real plasma.

Plasma cathode electron sources: physics, technology, applications. [E M Oks] -- This book fills the gap for a textbook describing this kind of electron beam source in a systematic and thorough manner: from physical processes of electron emission to examples of real plasma. The mesh plasma cathode in combination with a vacuum arc used for formation of a electron beams with emission current from amperes to kiloamperes as well as beam current densities up to A/cm2, accelerating voltage from several keV to hundred keV and pulse length from μs to μs, repetition rate up to hundred by: 2.

A brief introduction to electron and ion sources for particle accelerators is given. Concentrating on the basic processes for the production of these particles, thermionic and photocathode production of electrons and the processes in Penning and electron cyclotron resonance ion sources are covered.

Finally, negative ions are by: 4. Plasma cathodes are used in large-cross-section electron beam sources. The cathode plasma is created by a low-pressure arc discharge with a hollow anode.

The physical processes in the discharge anode region associated with electron emission from the plasma and the formation of a stable plasma boundary as well as Cited by: Get this from a library. Plasma cathode electron sources: physics, technology, applications.

[E M Oks] -- "Plasma cathode electron sources have attracted significant interest and are widely used in various application areas world-wide. This work describes this kind of electron beam source in a systematic. Efim Oks, "Plasma Cathode Electron Sources: Physics, Technology, Applications" English | | ISBN: | PDF | pages: | mb This book fills the gap for a textbook describing this kind of electron beam source in a systematic and thorough manner: from physical processes of electron emission to examples of real plasma electron.

operating gas. The gas was introduced to the plasma cathode and allowed to flow through the electron extraction electrodes to the ion source chamber. Measurements showed that the plasma cathode pressure was less than 5 % higher than the ion source chamber. Quoted pressures are for the plasma cathode chamber.

The plasma cathode was driven by a. ELECTRON BEAM EXTRACTION ON PLASMA CATHODE ELECTRON SOURCES SYSTEM. The electron beam extraction through window of Plasma Generator Chamber (PGC) for Pulsed Electron Irradiator (PEI) device and simulation of plasma potential has been studied.

Plasma electron beam is extracted to acceleration region for enlarging their power by the external Cited by: 2. Other electron sources: Plasma chamber Plasma Cathode Very high electron currents can be extracted from plasma cathode electron sources Cathode Anode Ground Long cathode lifetimes > 1kA!

Rarely used in accelerators: Field emission from needle arrays Diamond amplifiers Etc Combinations of those already mentioned e.g. photo-thermionicFile Size: 5MB.Plasma Sources Sci. Technol. 2 () Printed in the UK I An electron-beam plasma source and geometry - for plasma process i n g Ken D Schatz and David N Ruzic University of Illinois, S.

Goodwin Avenue, Urbana, ILUSA Received 13 Augustin final form 30 November Abstract. The operation of an electron-beam plasma source and its application.The cathode plasma electron density and temperature were obtained by analyzing hydrogen H α and H β, and carbon ions CII and CIII spectral lines, and using the results of.