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Wednesday, July 15, 2020 | History

4 edition of Physics and technology of high current discharges in dense gas media and flows found in the catalog.

Physics and technology of high current discharges in dense gas media and flows

Bonita Stanton

Physics and technology of high current discharges in dense gas media and flows

by Bonita Stanton

  • 159 Want to read
  • 12 Currently reading

Published by Nova Science Publishers in Hauppauge, N.Y .
Written in English

    Subjects:
  • Low temperature plasmas,
  • Gas flow,
  • Plasma generators,
  • Pulsed power systems

  • Edition Notes

    Includes bibliographical references and index.

    StatementBonita Stanton, Jennifer Galbraith, and Linda Kaljee.
    ContributionsGalbraith, Jennifer., Kaljee, Linda.
    Classifications
    LC ClassificationsQC718.5.L6 S73 2009
    The Physical Object
    Paginationp. cm.
    ID Numbers
    Open LibraryOL22528953M
    ISBN 109781606922323
    LC Control Number2008039817
    OCLC/WorldCa252921223

      It doesn’t. A sufficiently high voltage will break down any gas at any pressure, or for that matter any liquid or solid. It’s just easier at low pressure, because the electrons torn loose from one atom or molecule get to accelerate over a longer d. The (typically noble gas) glow discharge can be direct current (d.c.) or radio frequency (r.f.) driven and serves primarily as a charging medium for the (typically spherical, dielectric) particles. The dust particles are exposed to electron and ion currents from the discharge plasma, a dynamic equilibrium is rapidly reached, where their net.

    A gas-filled tube, also known as a discharge tube, is an arrangement of electrodes in a gas within an insulating, temperature-resistant -filled tubes exploit phenomena related to electric discharge in gases, and operate by ionizing the gas with an applied voltage sufficient to cause electrical conduction by the underlying phenomena of the Townsend discharge. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA

      The authors form such linkages in this report. The authors measured the optical emission intensities of lines from Ar, F, S, SF x, CF 2, C 2, C 3, and CS as a function of the percentage C 4 F 8 in the gas flow, the total gas flow rate, and the bias power. In addition, the ion current density and electron temperature were measured using a. gases should be studied. The processes by which high currents are produced in gases is essential. The electrical discharges in gases are of two types; i) non-sustaining discharges ii) self-sustaining types. The breakdown in a gas (spark breakdown) is the transition of a non-sustaining discharges into a self-sustaining discharge.


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Physics and technology of high current discharges in dense gas media and flows by Bonita Stanton Download PDF EPUB FB2

The book is dedicated to results of fundamental investigations in the field of dense low temperature plasma and their technical applications.

It also includes technical applications of the results in the following areas. Pulse discharges - high power pulse plasma generators with power up to 10 GW and currents up to 3 MA have been by: ISBN: OCLC Number: Description: x, pages: illustrations (some color) ; 27 cm: Contents: Chapter I.

Processes in High Current Discharges in Dense and Super Dense Gas Environments pp uction 2. Physics and technology of high-current discharges in dense gas media and flows. [Philip Rutberg] Home. WorldCat Home About WorldCat Help. Search.

Search for Library Items Search for Lists Search for This book includes technical applications of the results in such. Request PDF | High-current discharge channel contraction in high density gas | Research results for discharges at current amplitudes of – MA and current rise rate of.

Physics and technology of high current discharges in dense gas media and flows. By Philip Rutberg. Topics: General Theoretical Physics. Publisher: Nova Science Publ. Year: OAI identifier: oai: Provided by: CERN Author: Philip Rutberg. Electric discharge in gases occurs when electric current flows through a gaseous medium due to ionization of the gas.

Depending on several factors, the discharge may radiate visible light. The properties of electric discharges in gases are studied in connection with design of lighting sources and in the design of high voltage electrical equipment.

High-current discharge channel contraction in high density gas Physics of Plas ( Rutberg, Physics and Technology of High-Current Discharges in Dense Gas Media and Flows (Nova Science, Inc., New York, ).

High current density is generally a less degrading condition than low current density due to the reduced cell voltage. However, high current density operation is generally at higher temperature due to increased heat production, resulting in increased degradation rates (see Section ).The following are areas of concern: • Increased operating temperature will accelerate membrane.

The study is devoted to analysis of the formation of high-current electric discharges developing above the free surface of a liquid metal, Physics and Technology of High-Current Discharges in Dense Gas Media and Flows (Nova Science, New York, ), p.

Arc plasmas are high-current (30 A to 30 kA), low-voltage (10– V) discharges that attain very high gas temperatures (10,–, K or 10– eV) due to the high degree of joule heating from the discharge current. Their high gas temperature sustains high current flow by influencing the mechanism by which electrons are supplied to the.

Compressible flow (or gas dynamics) is the branch of fluid mechanics that deals with flows having significant changes in fluid all flows are compressible, flows are usually treated as being incompressible when the Mach number (the ratio of the speed of the flow to the speed of sound) is less than (since the density change due to velocity is about 5% in that.

Abstract. Experimental studies performed at the Institute for Electrophysics and Electric Power, Russian Academy of Sciences, that aimed at both the study of physics of a high-current pulsed discharge in a superdense gas and the improvement of various prototypes of pulsed facilities allowed a number of physical phenomena characteristic of these processes to be revealed.

Development of streamers and streamer-like discharges in heterogeneous gas media could be observed under natural and laboratory conditions. Lightning discharges propagate in the cloud-to-ground gap along which the air density n changes several times gradually [1, 2].Lightning-initiated transient luminous phenomena (red sprites, blue jets, elves) develop at high.

Effects of gas pressure and discharge current on beam composition in a magnetron discharge ion source the discharge, running in a high current pulsed mode, effectively produces plasmas with a high fraction of ions formed from the magnetron target material. Handbook of Sputter Deposition Technology (Noyes Publications, USA, ).

basic knowledge of plasma physics, ion accelerators, cathodes, electrical discharges, high voltage, gas dynamics, and many other technologies.

As such, we rely heavily on physics-based models that are often greatly simplified compared to the complex two-dimensional and three-dimensional codes.

SciTech Book News: Article Type: Book review: Date: Jun 1, Words: Previous Article: Physics and technology of high current discharges in dense gas media and flows. Next Article: 10 minute ENT consult. Topics.

The stable dc discharges generated along the intersecting two axial miniature helium flows were operated from low current of mA to high current of 20 mA. With increasing the discharge current.

A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids contained within the system and separated by a membrane.

Ion exchange (accompanied by flow of electric current) occurs through the membrane while both liquids circulate in their own respective space.

The investigations of powerful discharge in high density hydrogen were carried out on an installation with preliminary adiabatic compression. The experiments were performed under the following conditions: stored energy of the capacitive storage - kJ, charging voltage - kV, discharge current amplitude- kA, current rise rate - 10^^10 A/s.

The maximum particle density. Günterschultze [12] introduced the ratio q of current density at the cathode surface in HCD to that in anomalous discharges Figure 1. Classical hollow cathode discharge geometry illustrating transition from a high-voltage discharge into a glow discharge: 1—hollow cathode, 2—anode, 3—positive space charge, 4—plasma, 5—electron trajectory.

the cathode. They remain inside the discharge. If the electric current created by the ion and electron flows is sufficiently high, the ionized gas (plasma) can emit visible light. In laboratory experiments such as this, additional electrons are sometimes produced by secondary emission from the cathode.

The major, observed, physical properties.1. Introduction.- What Is the Subject of Gas Discharge Physics.- Typical Discharges in a Constant Electric Field.- Classification of Discharges.- Brief History of Electric Discharge Research.- Organization of the Book.

Bibliography.- 2.Gas Discharge Physics Here is both a textbook for beginners and a handbook for specialists in plasma physics and gaseous electronics.

The book contains much useful data: results of experiments and calculations, and reference data. It provides estimates of typical parameters and formulas in forms suitable for computations.