2 edition of Radiation from a current source immersed in an axially magnetised plasma column. found in the catalog.
Radiation from a current source immersed in an axially magnetised plasma column.
Gar Lam Yip
Written in English
|Contributions||Toronto, Ont. University.|
|The Physical Object|
|Pagination||viii, 138 leaves.|
|Number of Pages||138|
Dense Magnetized Plasma (DMP) belongs to the class of high-temperature plasmas able to produce hard radiation including fusion neutrons. By its plasma density range among other fusion plasmas, it occupies a niche between those with magnetic confinement (≤ cm−3) and with the inertial ones ( cm−3 and above). Abstract: The problem of determining the electromagnetic radiations from a given charge-current distribution situated in a plasma in the presence of a uniform external magnetic field is solved. Explicit expressions for the asymptotic electromagnetic fields are given for the case of a cold plasma. The resulting expressions simplify considerably in the case where the frequency of the wave is Cited by: 5.
Several diagnostics deployed at the interaction region to make measurements on the macroscopic parameters of plasma and neutral gas are described. The parameters of discharge circuits are measured with high current and voltage probes. An interaction between a magnetised plasma stream and a neutral gas cloud is demonstrated. With its topics the Advanced Study Institute constitutes the first attempt to bring together in an organized manner three areas of work on plasma technologies: advanced efforts based on wave generatedhigh frequency-plasmas, on plasma assisted ion implantation and on electron beam generated plasmas.
Magnetized plasma sheaths in an oblique magnetic field were extensively investigated by conventionally assuming Boltzmann relation for electron density. This article presents the study of the magnetized sheath without using the Boltzmann relation but by considering the electron reflection along the magnetic field lines caused by the negative sheath by: 5. lithography,7,8 and radiation sources.2 A z-pinch load, typi-cally consisting of a cylindrical gas column or of a wire array, is imploded by the magnetic pressure which is pro-duced by the axial current. At stagnation, the kinetic energy of the imploding plasma is converted to heating and radia-tion. Knowledge of the magnetic-ﬁeld.
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A study is made of the excitation of electromagnetic waves by spatially bounded, arbitrary sources in the presence of a cylindrical guiding structure immersed in an infinitely extended, homogeneous gyrotropic medium whose permittivity and permeability are both describable by tensors with nonzero off-diagonal elements.
An analysis is presented of the radiation emitted by an arbitrary source embedded in a cold, magnetoactive plasma and physically distinct from the latter. The plasma is supposed to be infinite and homogeneous; its dielectric properties are described by a dielectric tensor ε.
Expressions for the radiation fields are derived using the technique of Fourier by: 2. Request PDF | Electromagnetic wave radiation by an electron beam spiraling in a magnetized plasma column | The paper studies the electromagnetic wave radiation by a.
The electromagnetic waves and plasma oscillations excited by a magnetic current ring source around an infinitely long compressible plasma column are studied. The governing partial differential equations for the electromagnetic and plasma modes are first formulated.
They are then converted to ordinary differential equations by means of the Fourier : D. Cheng, H. Chen. Electromagnetic radiation from filamentary electric-dipole and magnetic-current sources of infinite length in the presence of gyrotropic cylindrical scatterers in the surrounding free space is studied.
The scatterers are assumed to be infinitely long, axially magnetized circular plasma columns parallel to the axis of the filamentary by: 3. An analytical study is developed for the generation of terahertz radiation by propagation of a circularly polarized laser pulse in axially magnetized plasma, in the mildly relativistic regime.
A pe Cited by: 5. Abstract. The modelling of a magnetized plasma column sustained by a circularly polarized electromagnetic wave shows that only the right-polarized wave (l = 1) can sustain plasma columns in a wide region of gas-discharge conditions [1,2].The behavior of the local dispersion curves (phase diagrams) is rather strange for the left-polarized wave (l = −1) and it requires detailed investigation Cited by: 1.
Problem of establishment of radiation field of a source moving in magnetized plasma. Gavrilenko & S. Zaitsev Radiophysics and Quantum Electronics vol pages – ()Cite this articleCited by: 4. Guiding of an electromagnetic pulse in a plasma immersed in combined wiggler and axial magnetic ﬁelds index of a magnetized plasma depends on the strength and direction of the magnetic ﬁeld as well as the plasma density.
A guiding channel is. I like to think of electrons and ions as corkscrewing along electric and magnetic field lines. A corkscrewing path is pretty common for plasma.
The radius of this corkscrew is known as a the Larmor radius, gyroradius or radius of gyration. Physici. The problem of radiation from a pulsed dipole source in a moving magnetized plasma described by a diagonal permittivity tensor is considered.
An exact solution describing the spatiotemporal behavior of the excited electromagnetic field is obtained. The shape of an electromagnetic pulse that is generated by the source and propagates at different angles to both the direction of the external Cited by: 2.
ANNALS of PHYSICS: () Electromagnetic Radiation from a Source in a Plasma* C. FORD Department of Physics, University of Michigan, Ann Arbor, Michigan and Space Technology Laboratories, Los Angeles, California The problem of determining the electromagnetic radiations from a given charge-current distribution situated in a plasma in the presence of a uniform external magnetic Cited by: 5.
Excitation of electromagnetic waves by spatially bounded given electric currents in the presence of an axially magnetized cylindrical plasma column surrounded by free space is studied.
A rigorous solution for the total field comprising both the discrete and continuous parts of the spatial spectrum of the excited waves is by: Excitation of electromagnetic waves by spatially bounded given electric currents in the presence of an axially magnetized cylindrical plasma column surrounded by free space is studied.
VOL NUMBER 21 PHYSICAL REVIEW LETTERS 24NOVEMBER Radiation from Cerenkov Wakes in a Magnetized Plasma J. Yoshii, C.H. Lai, and T. Katsouleas University of Southern California, Department of Electrical Engineering, Electrophysics, Los Angeles, California An analytical study is developed for the generation of terahertz radiation by propagation of a circularly polarized laser pulse in axially magnetized plasma, in the mildly relativistic regime.
The filament source may be located either inside or outside of the plasma region. A radiation pattern is computed for the magnetic current source located on the conducting cylinder parallel to the.
ON THE RADIATION OF A MAGNETIC LINE SOURCE EXCITED CYLINDER THROUGH AN AXIALLY SLOTTED PLASMA SHEATH By Andrejs Olte Distribution of this report is provided in the interest of information exchange.
Responsibility for the contents resides in the author or organization that prepared it. The radiation characteristics of a circular loop antenna located on the surface of an open waveguide in the form of an axially magnetized plasma column are studied using the rigorously obtained.
In a magnetized plasma this may provide a method of MHD waves generation. The generation of a dc magnetic field by a local rf electromagnetic field source (antenna) in a colli- sionless plasma is of principal interest as an impor- tant nonlinear effect available for experimental by: 1.
The overestimation of T e is demonstrated in Fig. occurs when the electron gyro radius becomes comparable to the thickness of the Debye sheath, extending 5 ⋯ 10 λ D.A possible explanation is an energy filtering effect which can be understood by applying the geometrical model, described later, to the electrons: Electrons with low energy, i.e.
small gyro radii r e and small velocity v Cited by: 3.Start studying chp 14 homework questions. Learn vocabulary, terms, and more with flashcards, games, and other study tools.A magnetized argon plasma column is created by two cylindrical capacitively coupled electrodes in a linear vacuum chamber.
We propose a scheme for coherent radiation generation by the interaction of two laser beams in axially magnetized plasma. Plasma-based schemes supersede the other mechanisms, such as semiconductors, due to the higher.