Author: V. O. JensenPublisher:
ISBN: 9788755004085
Category : Ion acoustic waves
Languages : en
Pages : 98
Book Description
Some Investigations of the Ion Acoustic Wave Problem in Collisionless Plasmas
Author: V. O. JensenPublisher:
ISBN: 9788755004085
Category : Ion acoustic waves
Languages : en
Pages : 98
Book Description
Some Investigations of the Ion Acoustic Wave Problem in Collisionless Plasmas
Author: Some investigations of the ion acoustic wave problem in collisionless plasmas
Author: V. O. JensenInvestigations of Electrostatic Ion Waves in a Collisionless Plasma
Author: Poul MichelsenPublisher:
ISBN:
Category : Ion acoustic waves
Languages : en
Pages : 154
Book Description
ERDA Energy Research Abstracts
Author: United States. Energy Research and Development AdministrationPublisher:
ISBN:
Category : Medicine
Languages : en
Pages : 800
Book Description
Scientific and Technical Aerospace Reports
Author: ERDA Energy Research Abstracts
Author: United States. Energy Research and Development Administration. Technical Information CenterPublisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 982
Book Description
Scientific and Technical Aerospace Reports
Author: Marginal Stability of Ion-Acoustic Waves in a Weakly Collisional Two-Temperature Plasma Without a Current
Author: Bamandas BasuPublisher:
ISBN:
Category : Dielectrics
Languages : en
Pages : 24
Book Description
This report presents two important results for a weakly collisional, current-free, two-temperature electron-ion plasma: (1) that e-i collisions have an undamping effect on ion acoustic waves, and (2) that, for appropriate values of the plasma parameters, ion-acoustic waves become marginally stable. The results are based on the closed form solution for the dielectric function for the linearized Balescu-Lenard-Poisson kinetic equations. The weakly collisional ordering is necessary to obtain an iterative solution for the collisional dielectric function, imposes two independent restrictions on the parameters that characterize the plasma. The linearized Balescu-Lenard-Poisson equations are solved in the weakly collisional limit to show that ion-acoustic waves in a current-free plasma, which are Landau-damped in the absence of collisions, can become marginally stable due to the undamping effect of electron-ion (e-i) collisions. For sq rt.(T sub e0/T sub i0) “ (5/16) sq rt.(m sub i/m sub e), the e-i collisional undamping effect dominates the i-i, e-e, and i-e collisional effects, and marginal stability occurs when the collisional undamping rate balances the electron and ion Landau damping rates.
A Theoretical and Experimental Investigation of Ion Acoustic Wave Dispersion in a Non-uniform Highly Ionized Argon Plasma
Author: Richard Robert LevinPublisher:
ISBN:
Category : Physics
Languages : en
Pages : 105
Book Description
Ion acoustic waves have been artificially excited and detected in the Steady State Plasma Facility at the Naval Post-graduate School by a magnetic excitation device and an optical detection system. The dispersion of these waves has been studied as a function of the exciting frequency and the confining static magnetic field. Dispersion curves are presented which compare the experimental data to a new dispersion equation which is derived in the present thesis. After the validity of this dispersion relation is demonstrated, the measurements are used as a diagnostic tool, and five operating parameters of the plasma facility are deduced from the measurements. Theories are presented to explain the behavior of the dispersion curves and three of the five operating parameters. (Author).