Investigation Of The Compression Of Magnetized Plasma And Magnetic Flux


Investigation Of The Compression Of Magnetized Plasma And Magnetic Flux
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Investigation Of The Compression Of Magnetized Plasma And Magnetic Flux


Investigation Of The Compression Of Magnetized Plasma And Magnetic Flux
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Author : Dimitry Mikitchuk
language : en
Publisher: Springer
Release Date : 2019-06-28

Investigation Of The Compression Of Magnetized Plasma And Magnetic Flux written by Dimitry Mikitchuk and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-28 with Science categories.


The present research studies the fundamental physics occurring during the magnetic flux and magnetized plasma compression by plasma implosion. This subject is relevant to numerous studies in laboratory and space plasmas. Recently, it has attracted particular interest due to the advances in producing high-energy-density plasmas in fusion-oriented experiments, based on the approach of magnetized plasma compression. The studied configuration consists of a cylindrical gas-puff shell with pre-embedded axial magnetic field that pre-fills the anode-cathode gap. Subsequently, axial pulsed current is driven through the plasma generating an azimuthal magnetic field that compresses the plasma and the axial magnetic field embedded in it. A key parameter for the understanding of the physics occurring during the magnetized plasma compression is the evolution and distribution of the axial and azimuthal magnetic fields. Here, for the first time ever, both fields are measured simultaneously employing non-invasive spectroscopic methods that are based on the polarization properties of the Zeeman effect. These measurements reveal unexpected results of the current distribution and the nature of the equilibrium between the axial and azimuthal fields. These observations show that a large part of the current does not flow in the imploding plasma, rather it flows through a low-density plasma residing at large radii. The development of a force-free current configuration is suggested to explain this phenomenon. Previously unpredicted observations in higher-power imploding-magnetized-plasma experiments, including recent unexplained structures observed in the Magnetized Liner Inertial Fusion experiment, may be connected to the present discovery.



Magnetic Flux Compression Experiments Using Plasma Armatures


Magnetic Flux Compression Experiments Using Plasma Armatures
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06

Magnetic Flux Compression Experiments Using Plasma Armatures written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06 with categories.


Magnetic flux compression reaction chambers offer considerable promise for controlling the plasma flow associated with various micronuclear/chemical pulse propulsion and power schemes, primarily because they avoid thermalization with wall structures and permit multicycle operation modes. The major physical effects of concern are the diffusion of magnetic flux into the rapidly expanding plasma cloud and the development of Rayleigh-Taylor instabilities at the plasma surface, both of which can severely degrade reactor efficiency and lead to plasma-wall impact. A physical parameter of critical importance to these underlying magnetohydrodynamic (MHD) processes is the magnetic Reynolds number (R(sub m), the value of which depends upon the product of plasma electrical conductivity and velocity. Efficient flux compression requires R(sub m) less than 1, and a thorough understanding of MHD phenomena at high magnetic Reynolds numbers is essential to the reliable design and operation of practical reactors. As a means of improving this understanding, a simplified laboratory experiment has been constructed in which the plasma jet ejected from an ablative pulse plasma gun is used to investigate plasma armature interaction with magnetic fields. As a prelude to intensive study, exploratory experiments were carried out to quantify the magnetic Reynolds number characteristics of the plasma jet source. Jet velocity was deduced from time-of-flight measurements using optical probes, and electrical conductivity was measured using an inductive probing technique. Using air at 27-inHg vacuum, measured velocities approached 4.5 km/s and measured conductivities were in the range of 30 to 40 kS/m.Turner, M. W. and Hawk, C. W. and Litchford, R. J.Marshall Space Flight CenterELECTRICAL RESISTIVITY; PLASMA COMPRESSION; MAGNETIC FLUX; REYNOLDS NUMBER; PLASMA JETS; PLASMA DYNAMICS; STABILITY; CHEMICAL PROPULSION; SPACECRAFT PROPULSION; ARMATURES; TEST FACILITIES; PLASMA GUNS



Magnetic Flux Compression Experiments Using Plasma Armatures


Magnetic Flux Compression Experiments Using Plasma Armatures
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Author : M. W. Turner
language : en
Publisher:
Release Date : 2003

Magnetic Flux Compression Experiments Using Plasma Armatures written by M. W. Turner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Magnetic flux categories.




Current Trends In International Fusion Research


Current Trends In International Fusion Research
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Author : E. Panarella
language : en
Publisher: NRC Research Press
Release Date : 1999

Current Trends In International Fusion Research written by E. Panarella and has been published by NRC Research Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.


Proceedings of a symposium held to identify, review, and assess the benefits, uncertainties, & potentialities of the conventional, alternative, & exploratory approaches to fusion energy production, and to assess industrial spin-offs & other applications. Topics of the compiled papers include: a new course for fusion research, magnetic confinement, inertial confinement, other confinement, plasma physics, numerical simulation, nuclear processes, fusion burn control, plasma diagnostics, and plasma stability. Includes subject index.



Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology


Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology
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Author : Hans J. Schneider-Muntau
language : en
Publisher: World Scientific
Release Date : 2004

Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology written by Hans J. Schneider-Muntau and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.


The generation of megagauss fields for science and technology is an exciting area at the extremes of parameter space, involving the application and controlled handling of extremely high power and energy densities in small volumes and on short time scales. New physical phenomena, technological challenges, and the selection and development of materials, together create a unique potential and synergy resulting in fascinating discoveries and achievements. This book is a collection of the contributions of an international conference, which assembled the leading scientists and engineers worldwide working on the generation and use of the strongest magnetic fields possible. Other research activities include generators that employ explosives to create ultra-high pulsed power for different applications, such as megavolt or radiation sources. Additional topics are the generation of plasmas and magnetized plasmas for fusion, imploding liners, rail guns, etc.



Investigation Of Toroidal Discharge In A Rapidly Varying Longitudinal Magnetic Field


Investigation Of Toroidal Discharge In A Rapidly Varying Longitudinal Magnetic Field
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Author : D. P. Ivanov
language : en
Publisher:
Release Date : 1960

Investigation Of Toroidal Discharge In A Rapidly Varying Longitudinal Magnetic Field written by D. P. Ivanov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Magnetohydrodynamics categories.




Scientific And Technical Aerospace Reports


Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1990

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 1990 with Aeronautics categories.




Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology


Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology
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Author : Hans J Schneider-Muntau
language : en
Publisher: World Scientific
Release Date : 2004-11-04

Megagauss Magnetic Field Generation Its Application To Science And Ultra High Pulsed Power Technology written by Hans J Schneider-Muntau and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-11-04 with Science categories.


The generation of megagauss fields for science and technology is an exciting area at the extremes of parameter space, involving the application and controlled handling of extremely high power and energy densities in small volumes and on short time scales. New physical phenomena, technological challenges, and the selection and development of materials, together create a unique potential and synergy resulting in fascinating discoveries and achievements. This book is a collection of the contributions of an international conference, which assembled the leading scientists and engineers worldwide working on the generation and use of the strongest magnetic fields possible. Other research activities include generators that employ explosives to create ultra-high pulsed power for different applications, such as megavolt or radiation sources. Additional topics are the generation of plasmas and magnetized plasmas for fusion, imploding liners, rail guns, etc. Contents: Overviews and LecturesGeneration of Megagauss Magnetic Fields — Ultra-High Magnetic FieldsGeneration of Megagauss Magnetic Fields — Non-Destructive High Magnetic Fields/Conductor DevelopmentGeneration of Megagauss Magnetic Fields — High Magnetic Fields in Small VolumesScience in Megagauss Magnetic FieldsPlasmas, Magnetized Plasmas, FusionRailguns, Launchers, and Related TopicsExplosive Ultra-High Pulsed Power GeneratorsImploding LinersCodes, Analysis, SimulationsSwitches and OtherHigh Magnetic Field Facilities Readership: Academics, graduate students, researchers, engineers and practitioners in applied physics, condensed matter physics and advanced systems engineering. Keywords:Magnetic Fields;Flux Compression;Explosives;Megagauss Fields;Generation of Megagauss Fields;Science in Megagauss Fields;Plasmas;Ultra-high Pulsed-Power Generators;Imploding Liners;High Magnetic Field Facilities



Erda Energy Research Abstracts


Erda Energy Research Abstracts
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Author : United States. Energy Research and Development Administration
language : en
Publisher:
Release Date : 1977

Erda Energy Research Abstracts written by United States. Energy Research and Development Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Medicine categories.




Los Alamos Science


Los Alamos Science
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Author :
language : en
Publisher:
Release Date :

Los Alamos Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Laboratories categories.