Author: Burton D. Fried
Publisher:
ISBN:
Category : Electric discharges through gases
Languages : en
Pages : 40
Book Description
The possibility of using a low pressure mercury discharge to detect ion plasma oscillations was examined. It was found that 1) collisions will not interfere with the phenomenon; 2) the current which maintains the discharge will cause the waves to grow (through the two-stream instability) in a time comparable with or less than the oscillation period. Aside from complications caused by the fact that the maximum growth occurs at rather short wavelengths, detection of these waves appears quite feasible. (Author).
On the Detection of Ion Oscillations in a Mercury Discharge
Author: Burton D. Fried
Publisher:
ISBN:
Category : Electric discharges through gases
Languages : en
Pages : 40
Book Description
The possibility of using a low pressure mercury discharge to detect ion plasma oscillations was examined. It was found that 1) collisions will not interfere with the phenomenon; 2) the current which maintains the discharge will cause the waves to grow (through the two-stream instability) in a time comparable with or less than the oscillation period. Aside from complications caused by the fact that the maximum growth occurs at rather short wavelengths, detection of these waves appears quite feasible. (Author).
Publisher:
ISBN:
Category : Electric discharges through gases
Languages : en
Pages : 40
Book Description
The possibility of using a low pressure mercury discharge to detect ion plasma oscillations was examined. It was found that 1) collisions will not interfere with the phenomenon; 2) the current which maintains the discharge will cause the waves to grow (through the two-stream instability) in a time comparable with or less than the oscillation period. Aside from complications caused by the fact that the maximum growth occurs at rather short wavelengths, detection of these waves appears quite feasible. (Author).
U.S. Government Research Reports
NASA Technical Note
Nonlinear Electron-Wave Interaction Phenomena
Author: Joseph E. Rowe
Publisher: Academic Press
ISBN: 1483225208
Category : Technology & Engineering
Languages : en
Pages : 607
Book Description
Nonlinear Electron-Wave Interaction Phenomena explores the interaction between drifting streams of charged particles and propagating electromagnetic waves. Of particular concern are the situations in which the wave amplitude is large and there is strong coupling between the charged fluid and the wave. Emphasis is placed on those devices that utilize a defined injected stream of some type. Particle and electromagnetic wave velocities both small and comparable to the velocity of light are considered. Comprised of 16 chapters, this book begins with an introduction to the various classes of devices in which the drifting stream (charged fluid) is composed of electrons and/or ions coupled to a slow electromagnetic wave over an extended region. The discussion then turns to Eulerian versus Lagrangian formulation and radio-frequency equivalent circuits, along with space-charge-field expressions. Subsequent chapters focus on the interaction mechanisms in klystrons, traveling-wave amplifiers, and O-type backward-wave oscillators, as well as crossed-field forward- and backward-wave amplifiers, and traveling-wave energy converters. The book also evaluates multibeam and beam-plasma interactions; phase focusing of electron bunches; pre-bunched electron beams; collector depression techniques; and modulation characteristics. This monograph is designed to serve both as a research monograph for workers in the fields of microwave electron and plasma devices and as a text for advanced graduate students.
Publisher: Academic Press
ISBN: 1483225208
Category : Technology & Engineering
Languages : en
Pages : 607
Book Description
Nonlinear Electron-Wave Interaction Phenomena explores the interaction between drifting streams of charged particles and propagating electromagnetic waves. Of particular concern are the situations in which the wave amplitude is large and there is strong coupling between the charged fluid and the wave. Emphasis is placed on those devices that utilize a defined injected stream of some type. Particle and electromagnetic wave velocities both small and comparable to the velocity of light are considered. Comprised of 16 chapters, this book begins with an introduction to the various classes of devices in which the drifting stream (charged fluid) is composed of electrons and/or ions coupled to a slow electromagnetic wave over an extended region. The discussion then turns to Eulerian versus Lagrangian formulation and radio-frequency equivalent circuits, along with space-charge-field expressions. Subsequent chapters focus on the interaction mechanisms in klystrons, traveling-wave amplifiers, and O-type backward-wave oscillators, as well as crossed-field forward- and backward-wave amplifiers, and traveling-wave energy converters. The book also evaluates multibeam and beam-plasma interactions; phase focusing of electron bunches; pre-bunched electron beams; collector depression techniques; and modulation characteristics. This monograph is designed to serve both as a research monograph for workers in the fields of microwave electron and plasma devices and as a text for advanced graduate students.
Nuclear Science Abstracts
Oscillations and Noise in Low Pressure DC Discharges
Author: F. W. Crawford
Publisher:
ISBN:
Category : Oscillations
Languages : en
Pages : 110
Book Description
This analysis is concerned mainly with oscillations and fluctuations which occur either spontaneously, or as a result of deliberate excitation, in low-pressure, hot-cathode plasmas. Experimental observations on high and low frequency effects occurring spontaneously are discussed, and speculations are made on the possible gener-ATION MECHANISMS. In many cases, theories of these mechanisms have been treated in experiments involving deliberate excitation of oscillations, and comparisons are made where relevant. For device applications, and to relieve the difficulties which occur in quantitative experiments in plasma physics, it is important that the sources of spontaneous oscillations should be understood and suppressed if possible. The analysis includes a discussion of work which has been carried out to reduce these effects, and concludes with some suggestions for further lines of attack on the problems. (Author).
Publisher:
ISBN:
Category : Oscillations
Languages : en
Pages : 110
Book Description
This analysis is concerned mainly with oscillations and fluctuations which occur either spontaneously, or as a result of deliberate excitation, in low-pressure, hot-cathode plasmas. Experimental observations on high and low frequency effects occurring spontaneously are discussed, and speculations are made on the possible gener-ATION MECHANISMS. In many cases, theories of these mechanisms have been treated in experiments involving deliberate excitation of oscillations, and comparisons are made where relevant. For device applications, and to relieve the difficulties which occur in quantitative experiments in plasma physics, it is important that the sources of spontaneous oscillations should be understood and suppressed if possible. The analysis includes a discussion of work which has been carried out to reduce these effects, and concludes with some suggestions for further lines of attack on the problems. (Author).
Nuclear Science Abstracts
Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1032
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1032
Book Description