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Thursday, July 9, 2020 | History

5 edition of Optogalvanic effect in ionized gas found in the catalog.

Optogalvanic effect in ionized gas

by V. N. Ochkin

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  • 23 Currently reading

Published by Lebedev Physical Institute University Press, Foundation for International Scientific and Education Cooperation, distributed by Gordon and Breach in London, Amsterdam .
Written in English

    Subjects:
  • Optogalvanic spectroscopy.,
  • Ionized gases -- Spectra.

  • Edition Notes

    Includes bibliographical references and index.

    StatementV.N. Ochkin, N.G. Preobrazhensky, N.Y. Shaperev ; translated from the Russian by Sergei G. Kittel.
    ContributionsPreobrazhenskiĭ, N. G., Shaparev, N. I͡A︡.
    Classifications
    LC ClassificationsQC454.O68 O2413 1999
    The Physical Object
    Paginationxii, 197 p. :
    Number of Pages197
    ID Numbers
    Open LibraryOL3648636M
    ISBN 109069940019
    LC Control Number2002489620
    OCLC/WorldCa41170875

    Ionization or ionisation, is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical resulting electrically charged atom or molecule is called an tion can result from the loss of an electron after collisions with subatomic particles, collisions with other atoms, molecules. Written by a distinguished scientist and experienced book author this text is applicable to many fields in materials and surface science as well as nanotechnology and contains numerous appendices with indispensable reference data. gas russian atoms intensity section transition states frequency spectra.

    Definition. Plasma is a state of matter in which an ionized gaseous substance becomes highly electrically conductive to the point that long-range electric and magnetic fields dominate the behaviour of the matter. The plasma state can be contrasted with the other states: solid, liquid, and gas.. Plasma is an electrically neutral medium of unbound positive and negative particles (i.e. the. of the optogalvanic effect are explored in a broad set of experiments. The optogalvanic effect was investigated, for the Ar, Ne, He, Ar +, He +, Cu and Na atoms and N2, H~, CO, CN, NH2, He2, and CuO molecules in recombina- tion-limited hollow cathode plasmas, with the use of dye lasers. Compara-.

    The collisional ionization rate in the upper state is twice as fast as that in the lower state although the two states are only separated by eV. We conclude that the optogalvanic effect of the neon nm transition is due primarily to the electron collisional ionization of the neon by: Books. Publishing Support. Login. Login. Forgotten password? Create account. Benefits of a My IOPscience account. Login via Athens/your Institution. Primary search Search. Article Lookup. Find article List of journal titles.


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Optogalvanic effect in ionized gas by V. N. Ochkin Download PDF EPUB FB2

The physical formation mechanisms of optogalvanic effects in ionized gases are considered in this comprehensive monograph, as well as the effects themselves, and their diverse applications. The work explores the influence of irradiating light on the impedance of plasma discharges: glow discharges, discharges with hollow cathodes, and thermoionic diodes.

The physical formation mechanisms of optogalvanic effects in ionized gases are considered in this comprehensive monograph, as well as the effects themselves, and their diverse applications.

The work also explores the influence of irradiating light on the impedance of plasma discharges. Optogalvanic spectroscopy is restricted by its nature to free atoms or molecules in weakly ionized plasmas, such as flames and low pressure glow discharges.

In such environments, a low degree of ionization is maintained by collisions between atoms, molecules, ions, and/or by: 3. This affects collision rates, including those between molecules and electrons, leading to a measurable conductivity change, S, of the ionized gas.

Intracavity Optogalvanic Spectroscopy (ICOGS), is an extension of external cavity studies where the main experimental change is the placement of the analyte cell inside the laser by: The Optogalvanic effect is the change in the conductivity of a gas discharge induced by a light source (typically a laser).

This effect has found many applications in atomic spectroscopy and laser stabilization. The optogalvanic effect consists in the change of the voltage applied Optogalvanic effect in ionized gas book, and of the current through, a discharge due to variations in the effective ionization rates induced by laser light resonantly tuned to specific atomic transitions of the discharge medium.

The. Optogalvanic COG) effect is such a phenomenon in which impedance of a gas discharge changes due to the absorption of radiation by atoms. molecules, ions etc. of the gaseous sample. The optogalvanic effect is a change in the electrical properties of a discharge caused by illuminating the discharge with radiation having a wavelength corresponding to an atomic or molecular.

This effect can be interpreted as caused by the disturbance of the excitation-ionization equilibrium in the discharge plasma through the radiation and is known as the Optogalvanic effect (OG).

One of the earliest reports of the OG effect was published by PENNING [1].Cited by: 3. In this work we present the optogalv anic effect in ionized gases in an historical perspectiv e.

This effect w as observed for the first time by Foote and Mohler inand e xplained by P enning. Optogalvanic Effect in Ionized Gas V N Ochkin, N G Preobrazhensky, N Y Shaparev The physical formation mechanisms of optogalvanic effects in ionized gases are considered in this comprehensive monograph, as well as the effects themselves, and their diverse applications.

The pulsed optogalvanic (OG) effect is used to observe Penning ionization in a Zr–Ne hollow-cathode discharge, which was axially irradiated by a pulsed dye laser pumped by copper vapor laser. The effect of discharge current on the temporal evolution of the OG signal is Cited by: 2.

Optogalvanic Effect in Ionized Gas 1st Edition. V N Ochkin, N G Preobrazhensky, N Y Shaparev Febru The physical formation mechanisms of optogalvanic effects in ionized gases are considered in this comprehensive monograph, as well as the. Simultaneous detection of the optogalvanic effect and of the laser-induced intensity variations in emission lines in a uranium hollow-cathode discharge show that a part of the absorbed laser energy is transferred to all the species in the lamp by means of electron collisions.

This transfer results in a global heating of the plasma and in an increase of ion and atom densities. This affects collision rates, including those between molecules and electrons, leading to a measurable conductivity change, S, of the ionized gas. Optogalvanic spectroscopy for isotopic analysis makes use of the fact that laser resonances in CO 2 are isotope by: Books.

Publishing Support. Login. whereby the liquid sheet acquires a certain amount of charge from the ionized gas. In this paper the authors present a theoretical analysis of the charge sheath formation and estimate a lower bound for the electric field intensity at the liquid film surface.

Optogalvanic effects have been induced in the. We report on an investigation of the optogalvanic effect in the cathodic region of a glow discharge. Analysis of the spatial behavior of the fluorescence intensity enabled us to obtain detailed information on the laser‐unperturbed by: 9.

3 Life and scientific works of Ioan-Iovitz Popescu two-volume monograph by E. Bãdãrãu and Ioan-Iovitz Popescu entitled Ionized gases, published in Romanian by Editura Tehnica, and consisting of volume I, Fundamental processes, published inand volume II, Electric discharges in gases, published in A translation in French under the title Gaz ionisés,File Size: 33KB.

Close Drawer Menu Close Drawer Menu Menu. Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of Cited by: The opto-galvanic effect, which involvesmore» Laser depopulation of the rare gas metastable states was observed to decrease the ionization rate of the discharge, indicating a dependence on the metastable state in the ionization mechanisms.

Owing to the presence of free ions, using plasma for ion sources is quite natural. case, plasma is produced by a suitable form of low-pressure gas discharge. more or less warm. their thermal energy as heat to the heavier plasma components or to the enclosing walls. characterized as ‘low-enthalpy plasma’.Cited by: 4.Physics of Fully Ionized Gases: Second Revised Edition (Dover Books on Physics) Paperback – July 7, by Lyman Spitzer Jr.

(Author) out of 5 stars 6 ratings. See all 15 formats and editions Hide other formats and editions. Price New from Cited by: 14 books (ionized gases and plasma physics, optics and spectroscopy, general physics, with professors Eugen Badareu, Radu Titeica, Iancu Iova, Dumitru Ciobotaru, Emil Toader, Florea Uliu and Ion Dima) and over one hundred publications in reviewed journals on topics in gas discharges, plasma and laser physics (78 in foreign journals, 52 in.