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Ionization Phenomena In A Cesium Thermionic Converter Plasma

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Ionization Phenomena In A Cesium Thermionic Converter Plasma

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Author : Daniel Wilkins (Dancer)
language : en
Publisher:
Release Date : 1964

Ionization Phenomena In A Cesium Thermionic Converter Plasma written by Daniel Wilkins (Dancer) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Cesium categories.

Technical Summary Report For Basic Research In Thermionic Energy Conversion

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Author : Lorin K. Hansen
language : en
Publisher:
Release Date : 1969

Technical Summary Report For Basic Research In Thermionic Energy Conversion written by Lorin K. Hansen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Absorption categories.

The report presents the results of the past year's work in a program to investigate basic process in thermionic diodes which are important to the realization of practical thermionic energy conversion.

Direct Energy Conversion In The Ussr Thermionic Converters

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Author : Library of Congress. Aerospace Technology Division
language : en
Publisher:
Release Date : 1965

Direct Energy Conversion In The Ussr Thermionic Converters written by Library of Congress. Aerospace Technology Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Direct energy conversion categories.

CONTENTS: Thermoelectron emission; Volt-ampere characteristic and difference of contact potential; Positive surface ionization and evaporation heats; Space-charge and its neutralization; Transport phenomena; Qualitative theory of plasma thermoelements; Classification schemes; Vacuum with current limited by space-charge; Vacuum with space-charge compensated (Anselm's theoretical study; Rectilinear-path mode; Ioffe's concept of a plasma thermocouple; Simple diffusion mode (Moyzhes-Pikus Theoretical Study); Phenomena at increased plasma pressures; Discharge mode (Baksht-Moyzhes Theoretical Study); Arc mode.

Investigation Of The Neutralization Plasma In Thermionic Converters

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Author : Rodney J. Andersen
language : en
Publisher:
Release Date : 1969

Investigation Of The Neutralization Plasma In Thermionic Converters written by Rodney J. Andersen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.

An investigation was directed toward obtaining an improved understanding of the properties of the cesium neutralization plasma existing in ignited-mode thermionic converters. Toward this end an analysis was made of electron and ion transport phenomena based on conditions known to exist in thermionic converter plasmas. In support of this analysis, detailed measurements of electron density and temperature in the ignited-mode converter plasma were made using high resolution spectroscopic techniques. With this information, quantitative estimates were made of: the electric field intensity, the electron kinetic energy flux, the ion current density, and the charged particle production rate. On the basis of these results, an interpretation was made of the role played by the cesium neutralization plasma in determining converter performance. (Author).

Collisionless Sheaths Between Field Modified Emitters And Thermally Ionized Plasmas Exemplified By Cesium

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Author : James F. Morris
language : en
Publisher:
Release Date : 1968

Collisionless Sheaths Between Field Modified Emitters And Thermally Ionized Plasmas Exemplified By Cesium written by James F. Morris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Cesium plasmas categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1972

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Plasmadynamics And Ionization Kinetics Of Thermionic Energy Conversion

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Author :
language : en
Publisher:
Release Date : 1982

Plasmadynamics And Ionization Kinetics Of Thermionic Energy Conversion written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.

To reduce the plasma arc-drop, thermionic energy conversion is studied with both analytical and numerical tools. Simplifications are made in both the plasmadynamic and ionization-recombination theories. These are applied to a scheme proposed presently using laser irradiation to enhance the ionization kinetics of the thermionic plasma and thereby reduce the arc-drop. It is also predicted that it is possible to generate the required laser light from a thermionic-type cesium plasma. The analysis takes advantage of theoretical simplifications derived for the ionization-recombination kinetics. It is shown that large laser ionization enhancements can occur and that collisional cesium recombination lasing is expected. To complement the kinetic theory, a numerical method is developed to solve the thermionic plasma dynamics. To combine the analysis of ionization-recombination kinetics with the plasma dynamics of thermionic conversion, a finite difference computer program is constructed. It is capable of solving for both unsteady and steady thermionic converter behavior including possible laser ionization enhancement or atomic recombination lasing. A proposal to improve thermionic converter performance using laser radiation is considered. In this proposed scheme, laser radiation impinging on a thermionic plasma enhances the ionization process thereby raising the plasma density and reducing the plasma arc-drop. A source for such radiation may possibly be a cesium recombination laser operating in a different thermionic converter. The possibility of this being an energy efficient process is discussed. (WHK).