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The Effect Of Pressure Atmosphere Amd Magnetic Field Frequency And Intensity On Magnetically Confined Laser Induced Plasmas
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Book Synopsis The Effect of Pressure, Atmosphere, Amd Magnetic Field Frequency and Intensity on Magnetically-confined Laser-induced Plasmas by : Franklin Lewis Dorman
Download or read book The Effect of Pressure, Atmosphere, Amd Magnetic Field Frequency and Intensity on Magnetically-confined Laser-induced Plasmas written by Franklin Lewis Dorman and published by . This book was released on 1993 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Effects of Pressure and Plasma Ionic Environment on Emission from a Laser-induced Plasma in a Pulsed Magnetic Field by : Elizabeth Ann O'Brien
Download or read book Characterization of the Effects of Pressure and Plasma Ionic Environment on Emission from a Laser-induced Plasma in a Pulsed Magnetic Field written by Elizabeth Ann O'Brien and published by . This book was released on 1995 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasma Behavior in a Romac Magnetic Field by : L. S. Combes
Download or read book Plasma Behavior in a Romac Magnetic Field written by L. S. Combes and published by . This book was released on 1962 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A PLASMA CONTAINMENT DEVICE ENTITLED ROMAC (ROTATED MAGNETIC CUSP) WASCONSTRUCTED. AN ATTEMPT WAS MADE TO COMBINE THE BASIC STABILITY ADVANTAGES OF FOUR-POLE LINE CUSP WITH THE LOW LOSS RATE OF A MORROR FIELD. THE MAGNETIC FIELD FOR ROMAC WAS PRODUCED BY ADDING A MIRROR FIELD ORTHONGONALLY TO THE CUSP FIELD. USING PULSE TECHNIQUES AN IONIZED GAS WAS CREATED WITHIN A BICONICAL CHAMBER AND THE ROMAC MAGNETIC FIELD PRODUCED TRANSIENTLY WITH THE MIRROR FIELD ALONG THE AXIS OF THE CHAMBER(Z AXIS) AND THE CUSP FIELD IN THE X-Y PLANE. MEASUREMENTS WITH MAGNETIC PROBES AND LIGHT PIPES SHOW THAT A DISTURBANCE IN THE MAGNETIC FIELD, ACCOMPANIED BY AN INCREASE IN LIGHT INTENSITY, STARTED AT THE PERIPHERY OF THE PLASMA CHAMBER AND WAS PROPAGATED INWARD AT TWO VELOCITIES TO THE CENTRAL AXIS. DETAILED MEASUREMENTS WERE MADE ON THE MAGNETIC FIELD CONFIGURATION. THESE INDICATE THAT, AT THE TIME THE SECOND WAVE ARRIVED AT THE AXIS, THE MIRROR HIELD HAD BEEN TO A LARGE EXTENT SEPARATED FROM THE CUSP FIELD SO THAT MOSTLY MIRROR FIELD EXISTED THROUGHOUT THE CENTRAL REGION, WHILE MOSTLY CUSP FIELD EXISTED IN THE OUTER REGION. THE INTENSITY OF THE FIELD AT THIS TIME IN THE CENTRAL REGION INDICATES THAT THE CUSP FIELD WAS COMPRESSING THE PLASMA AND MIRRORFIELD IN THIS REGION WERE EVEN LARGER THAN THE MAXIMUM INTENSITY OF THE APPLIED MIRROR FIELD.
Book Synopsis Investigation of the Compression of Magnetized Plasma and Magnetic Flux by : Dimitry Mikitchuk
Download or read book Investigation of the Compression of Magnetized Plasma and Magnetic Flux written by Dimitry Mikitchuk and published by Springer. This book was released on 2019-06-28 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Plasmas at High Temperature and Density by : Heinrich Hora
Download or read book Plasmas at High Temperature and Density written by Heinrich Hora and published by . This book was released on 2000 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Equilibrium and Stability Studies of Plasmas Confined in a Dipole Magnetic Field Using Magnetic Measurements by : Ishtak Karim
Download or read book Equilibrium and Stability Studies of Plasmas Confined in a Dipole Magnetic Field Using Magnetic Measurements written by Ishtak Karim and published by . This book was released on 2007 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) A peak beta of more than 26 % has been measured by the magnetic sensors to date. The high beta plasmas are shown to have supercritical pressure profiles that exceed the MHD limit. The finding confirms that the ECRH produced hot electrons that carry most of the pressure are minimally sensitive to the limit. The MHD gradient limit is slightly increased by incorporating pressure anisotropy, but magnetic data routinely gives a best fit profile that substantially exceeds even the anisotropic limit. It has yet to be seen whether the kinetic analog of the MHD interchange mode, or the hot electron interchange mode (HEI), plays a significant role in limiting the hot electron density gradient. The HEI's have been magnetically measured and shown to correlate with drops in flux measurements. Lastly, it is revealed that LDX plasmas display a linear scaling of stored energy with plasma current (known as the D-P-S relation), much like magnetospheric plasmas. This scaling is used to estimate the energy confinement time of LDX plasmas with different heating frequency compositions.
Book Synopsis Magnetic Reconnection in Plasmas by : D. Biskamp
Download or read book Magnetic Reconnection in Plasmas written by D. Biskamp and published by Cambridge University Press. This book was released on 2000-09-14 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 2000, is a comprehensive introduction to this major topic in plasma physics; for graduates and researchers.
Book Synopsis Turbulent Transport In Magnetized Plasmas by : C Wendell Horton, Jr
Download or read book Turbulent Transport In Magnetized Plasmas written by C Wendell Horton, Jr and published by World Scientific. This book was released on 2012-08-22 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book explains how magnetized plasmas self-organize in states of electromagnetic turbulence that transports particles and energy out of the core plasma faster than anticipated by the fusion scientists designing magnetic confinement systems in the 20th century. It describes theory, experiments and simulations in a unified and up-to-date presentation of the issues of achieving nuclear fusion power.
Book Synopsis The Interaction of Strong Electromagnetic Fields with Plasmas by : Ivan Romanovich Gekker
Download or read book The Interaction of Strong Electromagnetic Fields with Plasmas written by Ivan Romanovich Gekker and published by Oxford University Press, USA. This book was released on 1982 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The range of plasma conditions considered here is intentionally broad, systematic and relevant to such areas as plasma heating, plasma acceleration, laser-plasma interaction, and plasma confinement. This volume presents the principle concepts of plasma physics - with an account of the linear theory of electromagnetic wave interaction - and then covers nonlinear processes with extensive treatment of the pondermotive force. Related experimental work is thoroughly reviewed.
Book Synopsis Lectures in Plasma Physics by : Claude Mercier
Download or read book Lectures in Plasma Physics written by Claude Mercier and published by . This book was released on 1987 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Pressure Dependence of Spontaneous Magnetic Fields in Laser Produced Plasmas by : Ronald Stanley Bird
Download or read book The Pressure Dependence of Spontaneous Magnetic Fields in Laser Produced Plasmas written by Ronald Stanley Bird and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A plasma has been produced by irradiation of an aluminum slab with a 6.6 joule, 22 nanosecond (10 to the 10th power watt/sq cm) pulse of 1.06 micrometer radiation. Magnetic fields were observed to arise spontaneously when the laser-produced plasma was formed. The space and time behavior of the spontaneous magnetic fields and their relationship to the plasma density profile for expansion into various background pressures of H2, He, N2 and Ar was investigated using magnetic and electrostatic (double) probes. The magnitude and direction of the magnetic fields was found to depend on the background gas pressure. The generation of spontaneous magnetic fields at the front of the expanding laser plasma was observed long after laser irradiation ceased. These fields were axially symmetric and in a direction opposite to the initial field direction. Reverse fields were observed only above a critical background gas pressure. Magnetic fields were also observed to arise when a laser plasma impinged on a glass plate. The observed increase of the magnitude of the initial spontaneous magnetic fields is interpreted as arising from the momentum interaction between the expanding laser plasma and the pre-ionized ambient background plasma. The reverse field is attributed to the development of an axial electron temperature gradient at the plasma front due to snowplowing of the ambient plasma. (Author).
Book Synopsis Atmospheric Pressure Laser Initiated and Radiofrequency Sustained Plasmas by : Siqi Luo
Download or read book Atmospheric Pressure Laser Initiated and Radiofrequency Sustained Plasmas written by Siqi Luo and published by . This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Field Generation Due to Radiation Pressure in a Laser-Produced Plasma by : John A. Stamper
Download or read book Magnetic Field Generation Due to Radiation Pressure in a Laser-Produced Plasma written by John A. Stamper and published by . This book was released on 1972 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic field generation, according to Faraday's Law, requires a solenoidal electric field. Solenoidal electric fields associated with the large pressure and temperature gradients existing in laser-produced plasmas have previously accounted for the conversion of plasma thermal energy into magnetic field energy. It is shown that, in addition to these thermal sources, radiation pressure gradients produce a solenoidal electric field and thus provide a non-thermal (not dependent on plasma heating) source so that there is a direct conversion of laser radiation energy to magnetic field energy. This also implies a non-thermal (no plasma heating) absorption of laser radiation. (Author).
Book Synopsis Sub-Picosecond Laser Plasma Experiments on Dielectric Solids: Ultrafast Ionisation and Observation of Megagauss Magnetic Fields by : Ulrich Hilmar Wagner
Download or read book Sub-Picosecond Laser Plasma Experiments on Dielectric Solids: Ultrafast Ionisation and Observation of Megagauss Magnetic Fields written by Ulrich Hilmar Wagner and published by Cuvillier Verlag. This book was released on 2008-12-10 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Field and Pressure Effects in a Saturated Gas Laser Amplifier by : Robert Thomas Menzies
Download or read book Magnetic Field and Pressure Effects in a Saturated Gas Laser Amplifier written by Robert Thomas Menzies and published by . This book was released on 1970 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical and experimental studies of a gas laser amplifier are presented, assuming the amplifier is operating with a saturating optical frequency signal. The analysis is primarily concerned with the effects of the gas pressure and the presence of an axial magnetic field on the characteristics of the amplifying medium. Semi-classical radiation theory is used, along with a density matrix description of the atomic medium which relates the motion of single atoms to the macroscopic observables. A two-level description of the atom, using phenomenological source rates and decay rates, forms the basis of our analysis of the gas laser medium. Pressure effects are taken into account to a large extent through suitable choices of decay rate parameters. The behavior of a He-Ne gas laser amplifier in the presence of an axial magnetic field has been studied experimentally by measuring gain and Faraday rotation of linearly polarized resonant laser signals for various values of input signal intensity, and by measuring nonlinearity - induced anisotropy for elliptically polarized resonant laser signals of various input intensities. The experimental results agree quite well with corresponding theoretical expressions which have been developed to include the nonlinear effects of saturation strength signals. (Author).
Book Synopsis Proceedings of the First All-Union Conference on Plasma Confinement in Closed Magnet Systems, Moscow, FIAN, 15-19 April 1968 by :
Download or read book Proceedings of the First All-Union Conference on Plasma Confinement in Closed Magnet Systems, Moscow, FIAN, 15-19 April 1968 written by and published by . This book was released on 1970 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Fields in High Intensity - Laser Produced Plasmas by :
Download or read book Magnetic Fields in High Intensity - Laser Produced Plasmas written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
