Anomalous Resistivity in Collisionless Plasma Shock Waves PDF Download
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Author: D. C. Hill
Publisher:
ISBN:
Category : Plasma waves
Languages : en
Pages : 74
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Book Description
Author: D. C. Hill
Publisher:
ISBN:
Category : Plasma waves
Languages : en
Pages : 74
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Book Description
Author: André Balogh
Publisher: Springer Science & Business Media
ISBN: 1461460999
Category : Science
Languages : en
Pages : 503
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Book Description
The present book provides a contemporary systematic treatment of shock waves in high-temperature collisionless plasmas as are encountered in near Earth space and in Astrophysics. It consists of two parts. Part I develops the complete theory of shocks in dilute hot plasmas under the assumption of absence of collisions among the charged particles when the interaction is mediated solely by the self-consistent electromagnetic fields. Such shocks are naturally magnetised implying that the magnetic field plays an important role in their evolution and dynamics. This part treats subcritical shocks which dissipate flow energy by generating anomalous resistance or viscosity. The main emphasis is, however, on super-critical shocks where the anomalous dissipation is insufficient to retard the upstream flow. These shocks, depending on the direction of the upstream magnetic field, are distinguished as quasi-perpendicular and quasi-parallel shocks which exhibit different behaviours, reflecting particles back upstream and generating high electromagnetic wave intensities. Particle acceleration and turbulence at such shocks become possible and important. Part II treats planetary bow shocks and the famous Heliospheric Termination shock as examples of two applications of the theory developed in part I.
Author: Derek A. Tidman
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 200
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Book Description
Author: Bruce T. Tsurutani
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 138
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Book Description
Author: Derek A. Tidman
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 202
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Book Description
Author: Fred F. Schwirzke
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 0
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Book Description
In Part A of the report the titles of the 12 sessions and the 5 invited lectures are summarized. Concerning the content of the 117 presented papers, mainly the ones dealing with collisionless plasma phenomena are reviewed as for example: collisionless plasma heating by strong shock waves, turbulent heating, fluctuation spectrum during turbulent heating of a toroidal plasma, transformation and absorption of high frequency waves in a plasma, observation of anomalous resistivity, etc. Furthermore, an interesting effect concerning the anomalous scattering of laser light from a plasma is reported. The last chapter reviews a panel discussion on Tokamaks. Part B contains the paper 'Investigation of Instabilities and Collisionless Damping Mechanisms in the Front of a Laser Produced Plasma Interacting with a Magnetic Field.'
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1590
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Book Description
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1036
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Author: Ralph H. Lovberg
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
The report discusses an experiment designed to study collisionless shock waves in an inverse pinch discharge using argon. A magnetic disturbance was generated which propagated ahead of the driving field at twice the piston speed. Measurements of the magnetic and electric field structures, electron density and temperature, as well as ion velocities revealed that the disturbance was produced by a beam of plasma moving through the ionized ambient plasma rather than by a true shock wave. Calculations of ion trajectories using measured electric fields demonstrated that the beam originated at small radii and early times, and was not the result of a steady specular reflection from the piston field. It is concluded that the ions comprising this stream, which were collisionless relative to the ambient ions, did not couple to the background plasma even though a strong magnetic field was applied. (Author).
Author: Lynn Mary Olson
Publisher:
ISBN:
Category : Plasma (Ionized gases)
Languages : en
Pages : 176
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Book Description
Small amplitude near-steady oblique shock waves in a collisionless plasma are possible at Alfven Mach numbers 1 and cos theta. In the first case, either the magnetic pressure decreases monotonely or the head of the wave is near-periodic. In the second case, a main wavefront is followed by an oscillatory tail. (Author).
