IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340)
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Enhanced Raman scattering of a rippled laser beam in laser-plasma interaction
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Summary form only given, as follows. In the laser-plasma interaction experiments, self-focusing and filamentation affect quite a large number of other parametric processes including stimulated scattering processes. It has also been experimentally observed that SRS is more prone to the nonlinearly refraction-induced enhancement in the intensity of the filaments. This situation is qualitatively well......
#Raman scattering #Laser beams #Laser excitation #Laser modes #Particle beams #Electron beams #Plasma waves #Magnetic fields #Optical coupling #Optical refraction
Sheet shaped plasma production using microwave-plasma interaction with ECR region
- Trang 320
Summary form only given. To control the shape of high density plasma has been one of the issues for the application of plasma to industrial usages. Therefore, ECR plasma is a good candidate of a high density plasma. A sheet shaped high density plasma could be used to modify the surface of materials uniformly and as the basis for electron accelerators. The discharge parameters, such as ECR conditio......
#Production #Plasma density #Plasma accelerators #Plasma applications #Plasma materials processing #Plasma waves #Plasma measurements #Shape control #Magnetic field measurement #Industrial control
Quantum extension of Child-Langmuir law
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Summary form only given, as follows. In the advent fields of nano-technology, electrode gaps with scales down to nanometer regime can be fabricated. On such a nano scale, quantum effects such as electron tunneling and the electron exclusion principle become important in the study of beam-gap interaction. We extend the classical Child-Langmuir law into the quantum regime including the effects of el......
#Electrodes #Electron beams #Tunneling #Voltage #Plasmas #Equations #Current density #Matter waves #Solid modeling #Geometry
Time-average electric field of the plasma presheath determined by analysis of the particle interactions
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Summary form only given, as follows. Particle interactions were directly determined from the lateral compression of two-dimensional plasma dust crystals confined in a parabolic potential well. The shape of the parabolic potential well was confirmed by observing trajectories of single particles falling within the well. Particle trajectories are in good agreement with values calculated using gas tem......
#Plasma measurements #Plasma confinement #Particle measurements #Plasma sheaths #Plasma temperature #Potential well #Current measurement #Charge measurement #Length measurement #Dusty plasma
Initial operation of a plasma isotope separation system
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Summary form only given. A plasma-based isotope separation system has been installed at Theragenics/sup TM/ Oak Ridge, TN facility and has recently been placed into operation. This facility is designed to separate stable isotopes of metallic elements utilizing the Plasma Separation Process' (PSP). In this process, electron cyclotron resonance heating using a microwave power source forms the plasma......
#Isotopes #Plasma sources #Plasma materials processing #Electrons #Cyclotrons #Plasma waves #Plasma stability #Plasma density #Sputtering #Superconducting magnets
The corrosion properties of RF inductively coupled plasma nitrided stainless substrates
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Summary form only given. This paper presents the corrosion properties of RF inductively coupled plasma nitrided stainless steel substrates. A home-made low-frequency RF inductively coupled plasma source was used to perform the nitriding process. The processing parameters were carefully selected after considering the repeatability of the device. A nitrogen plasma operating in the H-mode was used fo......
#Plasma properties #Corrosion #Radio frequency #Plasma sources #Plasma devices #Plasma materials processing #Testing #Steel #Nitrogen #X-ray scattering
Study of high energy storage Blumlein transmission lines as high power microwave drivers
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Summary form only given. The evolution of high power microwave (HIPM) sources as practical systems requires the development of compact, portable, reusable, pulsed power systems. One approach to pursuing this objective is to utilize parallel-stacked Blumlein transmission lines energized using a compact Marx generator. Such a configuration would be capable of driving low impedance HPM sources with a......
#Energy storage #Power transmission lines #Pulse power systems #Electric breakdown #High power microwave generation #Impedance #Dielectric breakdown #Dielectric materials #Dielectric substrates #Computational geometry
Status of a high-frequency harmonic amplifier's development
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Summary form only given, as follows. The harmonic amplifier (HARA) is a very compact, high efficiency amplifier that has been under development at Microwave Technologies in the past few years. The HARA uses a two-cavity system in conjunction with a spiraling beam to produce high-frequency radiation. In this paper we will review C-band, Ka-band and W-band HARA experiments currently underway at Micr......
#Microwave technology #Microwave amplifiers #Power amplifiers #Electron beams #Production #Power generation #Missiles
Interference and guiding effects in the heating of ceramic slabs and joints with millimeter-wave radiation
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Summary form only given, as follows. This paper presents an analysis of some of the electromagnetic wave effects that occur when millimeter-wave beams are used for processing ceramic slabs and joints. These include interference effects on the couplings of the beam into a dielectric slab, guiding of the millimeter-wave beam through a ceramic joint, and standing-wave effects on the uniformity of ene......
#Heating #Ceramics #Slabs #Electromagnetic radiative interference #Electromagnetic analysis #Electromagnetic scattering #Beams #Optical coupling #Dielectrics #Thermal conductivity
Fractal properties of periodic plasma waveguides
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Summary form only given. Electromagnetic properties of periodic plasma waveguides at frequencies below the plasma frequency remain a mystery for researchers. The traditional approach leads to the divergence of numerical results and appearance of the "dense" spectrum, containing spurious information. A closed form analytical solution was previously obtained for electrostatic oscillations in a plana......
#Plasma properties #Fractals #Plasma waves #Plasma applications #Plasma density #Electromagnetic waveguides #Plasma devices #Cutoff frequency #Electromagnetic scattering #Electrostatic analysis