Investigation of Collective Phenomena in Dusty Plasmas

Investigation of Collective Phenomena in Dusty Plasmas
Author: Wellalage Don Suranga Ruhunusiri
Publisher:
Total Pages: 106
Release: 2014
Genre: Dusty plasmas
ISBN:

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I also find that the compressibility, a measure of the coupling between the dust particles, have a strong effect on the wave propagation. Comparing the kinetic vs. hydrodynamic descriptions for ions, I find that under typical laboratory conditions the inverse Landau damping and the ion-neutral collisions contribute about equally to the dust acoustic instability. Third, I performed dust acoustic wave experiments to resolve a previously unremarked discrepancy in the literature regarding the sign of the compressibility of a strongly-coupled dust component in a dusty plasma. According to theories compressibility is negative, whereas experiments suggest that it is positive. I find that the compressibility is positive. This conclusion was reached after allowing for a wide range of experimental uncertainties and model dependent systematic errors. Finally, the polygon construction method of Glaser and Clark was used to characterize crystallization and melting in a single-layer dusty plasma. Using particle positions measured in a previous dusty plasma experiment, I identified geometrical defects, which are polygons with four or more sides. These geometrical defects are found to proliferate during melting. I also identify a possibility of latent heat involvement in melting and crystallization processes of a dusty plasma.

Physics of Dusty Plasmas

Physics of Dusty Plasmas
Author: André Melzer
Publisher: Springer
Total Pages: 237
Release: 2019-06-13
Genre: Science
ISBN: 3030202607

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Colloidal plasmas - a still emerging field of plasma physics - enable the study of basic plasma properties on a microscopic kinetic level and allow the visualization of collective plasma phenomena, like oscillations and waves. Moreover, a vast number of novel phenomena are found in these systems, ranging from Coulomb crystallization to new types of forces and waves. Last but not least, they shed a new light on various traditional aspects of plasma physics such as shielding or the mechanism of acoustic waves in plasmas, thus providing new insight into the basic foundations of plasma physics.These course-based and self-contained lecture notes provide a general introduction to this active and growing field to students and nonspecialists, requiring only basic prior knowledge in plasma physics. ​

Collective Phenomena In Macroscopic Systems - Proceedings Of The Workshop

Collective Phenomena In Macroscopic Systems - Proceedings Of The Workshop
Author: Roberto Pozzoli
Publisher: World Scientific
Total Pages: 316
Release: 2007-08-13
Genre: Science
ISBN: 9814475327

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The contributions in this volume discuss numerous hot topics of interdisciplinary interest in plasma physics, astrophysics, and fluid dynamics. It collects the articles presented at a Workshop that has gathered world experts with a broad spectrum of research interests.

Dusty and Dirty Plasmas, Noise, and Chaos in Space and in the Laboratory

Dusty and Dirty Plasmas, Noise, and Chaos in Space and in the Laboratory
Author: H. Kikuchi
Publisher: Springer Science & Business Media
Total Pages: 583
Release: 2012-12-06
Genre: Science
ISBN: 1461518296

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I have been asked by Professor Kikuchi to write a foreword for this interesting book on Dusty Plasmas and other electrical phenomena. This was a somewhat daunting task due to the wide range of topics covered. In what follows I have attempted to summarize most of these topics; for this purpose I have divided them into four groups, namely (a) Dusty Plasmas, (b) The Electrical Environment, (c) Lightning and (d) The Noise Environment. I hope that I have succeeded. in indicating that each section contains much that is of great interest. It is perhaps unnecessary for me to point out that the book contains subjects which are at an exciting and important stage in their development. (a) Dusty Plasmas The subject of dusty plasmas is one of great interest. Dust particles in interplanetary space, within comets, in inter-stellar space and at ever greater distances will in general be charged. The plasma environment will ensure this, bombarding electrons will charge up the particle until it assumes a "floating potential," although time variation can occur. Ultra violet radiation can cause photoemission and in certain cases field emission is a possibility. The motion of the particles will be determined by electric and magnetic fields together with gravity. If the density of charged grains becomes sufficiently high the grains will interact with each other and collective behaviour will ensue. This newly evolving subject entails the study of all kinds of plasma waves.

Collective Phenomena in Macroscopic Systems

Collective Phenomena in Macroscopic Systems
Author: G Bertin
Publisher: World Scientific
Total Pages: 316
Release: 2007
Genre: Science
ISBN: 981277890X

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The contributions in this volume discuss numerous hot topics of interdisciplinary interest in plasma physics, astrophysics, and fluid dynamics. It collects the articles presented at a Workshop that has gathered world experts with a broad spectrum of research interests.

Physics of Dusty Plasmas

Physics of Dusty Plasmas
Author: Andrâe Melzer
Publisher:
Total Pages: 235
Release: 2019
Genre: Solar system
ISBN: 9783030202613

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Colloidal plasmas - a still emerging field of plasma physics - enable the study of basic plasma properties on a microscopic kinetic level and allow the visualization of collective plasma phenomena, like oscillations and waves. Moreover, a vast number of novel phenomena are found in these systems, ranging from Coulomb crystallization to new types of forces and waves. Last but not least, they shed a new light on various traditional aspects of plasma physics such as shielding or the mechanism of acoustic waves in plasmas, thus providing new insight into the basic foundations of plasma physics. These course-based and self-contained lecture notes provide a general introduction to this active and growing field to students and nonspecialists, requiring only basic prior knowledge in plasma physics.

Introduction to Dusty Plasma Physics

Introduction to Dusty Plasma Physics
Author: P.K Shukla
Publisher: CRC Press
Total Pages: 281
Release: 2015-05-06
Genre: Science
ISBN: 1420034103

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Introduction to Dusty Plasma Physics contains a detailed description of the occurrence of dusty plasmas in our Solar System, the Earth's mesosphere, and in laboratory discharges. The book illustrates numerous mechanisms for charging dust particles and provides studies of the grain dynamics under the influence of forces that are common in dusty plas

Frontiers in Dusty Plasmas

Frontiers in Dusty Plasmas
Author: Y. Nakamura
Publisher: Elsevier
Total Pages: 581
Release: 2000-02-07
Genre: Science
ISBN: 0080532039

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The study of dusty plasmas is now in a vigorous state of development. Dust and plasma coexist in a vast variety of cosmic environments and their research received a major boost in the early 80's with the Voyager spacecraft observations of peculiar features in the Saturnian ring system (e.g. the radial spokes) which could not be explained purely in gravitational terms. In addition, dust streams were measured by the Galileo spacecraft in the Jovian magnetosphere and charged dust in the earth's mesosphere was detected by a direct rocket experiment. Since then the area has greatly expanded with dedicated laboratory experiments verifying aspects of basic physics of charged dust grains in plasmas.These proceedings contain invited and poster papers which were presented by scientists active in the field from more than twenty countries. The material contains new aspects of collective interactions in dusty plasmas. For example, discoveries of dust-acoustic Mach cones, dust ion-acoustic shocks, great dust voids, vortex formation, dust crystallization under microgravity, coexistence of positive negative dust grains in the mesosphere and dust in tokamaks. The more theoretical and simulation studies focus on dynamical and structural properties and kinetic theories of strongly coupled dusty plasmas, as well as on self-organizations and structures, in addition to identifying forces (viz. wakefields, electrostatic and dipolar interactions etc.), which are responsible for charged dust grain attraction and phase transitions.The resulting book is a valuable, state-of-the-art review of the field of dusty plasma physics and will be welcomed by both researchers and graduate students who want to keep up to date in this rapidly growing field.

Advances In Dusty Plasmas: Proceedings Of The International Conference On The Physics Of Dusty Plasmas

Advances In Dusty Plasmas: Proceedings Of The International Conference On The Physics Of Dusty Plasmas
Author: Padma Kant Shukla
Publisher: World Scientific
Total Pages: 560
Release: 1997-12-04
Genre:
ISBN: 9814545589

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Dust-plasma interactions are of interest not only to space scientists and astrophysicists but lately also to technologists working in the semiconductor manufacturing industry. This book shows the wide scope of this new field, which is presently in a rapid state of development. It includes discussions not only of the physics and dynamics of charged dust in various plasma environments, but also of collective processes in dusty plasmas (new wave modes and instabilities), and the fascinating new development of the crystallization of dusty plasmas in the laboratory.

Proceedings of the Workshop Collective Phenomena in Macroscopic Systems, Villa Olmo, Como, Italy, 4 - 6 December 2006

Proceedings of the Workshop Collective Phenomena in Macroscopic Systems, Villa Olmo, Como, Italy, 4 - 6 December 2006
Author: Giuseppe Bertin
Publisher: World Scientific
Total Pages: 316
Release: 2007
Genre: Science
ISBN: 9812707050

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The contributions in this volume discuss numerous hot topics of interdisciplinary interest in plasma physics, astrophysics, and fluid dynamics. It collects the articles presented at a Workshop that has gathered world experts with a broad spectrum of research interests.