Results 251 to 260 of about 187,352 (298)
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Soviet Physics Uspekhi, 1981
The theory of Cherenkov and cyclotron plasma sources of coherent microwave radiation excited by intense electron beams is reviewed systematically. The linear approximation of the theory yields the output frequency spectra, the wave growth rates, and the threshold electron beam currents required for exciting these sources.
L.S. Bogdankevich +2 more
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The theory of Cherenkov and cyclotron plasma sources of coherent microwave radiation excited by intense electron beams is reviewed systematically. The linear approximation of the theory yields the output frequency spectra, the wave growth rates, and the threshold electron beam currents required for exciting these sources.
L.S. Bogdankevich +2 more
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2016
Thermochemical treatments carried out in microwave plasma are applied to steel substrates to increasehardness and prevent corrosion and simultaneously improve wear resistance. They are efficient for steelcarburizing. Since they are electrodeless process, the steel is free from metallic sputtering.
Jauberteau, Isabelle +1 more
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Thermochemical treatments carried out in microwave plasma are applied to steel substrates to increasehardness and prevent corrosion and simultaneously improve wear resistance. They are efficient for steelcarburizing. Since they are electrodeless process, the steel is free from metallic sputtering.
Jauberteau, Isabelle +1 more
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Interactions of Microwave with Plasmas
Plasma Science and Technology, 2003When plasma size scale is comparable with the wavelength of electromagnetic waves, W.K.B. solution isn't applicable. In this paper a new numerical solution technique to investigate interactions of microwave with plasmas is presented by using Runge-Kutta method.
Zhang Haifeng, Shao Fuqiu, Wang Long
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Japanese Journal of Applied Physics, 1977
A new plasma etching technique using microwave discharge is presented. Silicon wafers are etched by the discharge in a (CF4+O2) gas mixture. Fine patterns with dimensions of 1 µm are etched up to 1 µm in depth without undercutting at a pressure of 5×10-4 Torr with an Al mask having 0.08 µm thickness.
Keizo Suzuki +3 more
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A new plasma etching technique using microwave discharge is presented. Silicon wafers are etched by the discharge in a (CF4+O2) gas mixture. Fine patterns with dimensions of 1 µm are etched up to 1 µm in depth without undercutting at a pressure of 5×10-4 Torr with an Al mask having 0.08 µm thickness.
Keizo Suzuki +3 more
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2005 Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2006
The emissions from transport vehicles have dramatically increased over the last 30 years and huge sums of money are being invested in the reduction of vehicle pollution. The current method for treating these gases is using a catalytic converter, which has a honeycomb of porous ceramic.
M. Houghton +4 more
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The emissions from transport vehicles have dramatically increased over the last 30 years and huge sums of money are being invested in the reduction of vehicle pollution. The current method for treating these gases is using a catalytic converter, which has a honeycomb of porous ceramic.
M. Houghton +4 more
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Conductivity of Plasma to Microwaves
Physical Review, 1959Plasma conductivities for electrons with a Maxwellan energy distribution are evaluated for the cases in which the collision cross section is (i) velocity independent and (ii) inversely proportional to the velocity. The corresponding distribution functions of relaxation times are discussed. (auth)
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Simulating Plasma Microwave Diagnostics
Journal of Scientific Computing, 2006The paper presents computational simulations of plasma diagnostics via microwave absorption, where the number density of the charge particles and its collision frequency with the neutral particles are measured basing on the microwave attenuation phenomenon.
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2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014
Cold atmospheric plasmas (CAP) may have the ability to improve cancer treatment, though the mechanisms of which are yet to be fully understood. Recent works have shown that Rayleigh microwave scattering (RMS) can be used to obtain the absolute value of the electron density in CAP. An RMS apparatus titled the Microwave Electron Density Device (MEDD) has
David R. Scott +2 more
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Cold atmospheric plasmas (CAP) may have the ability to improve cancer treatment, though the mechanisms of which are yet to be fully understood. Recent works have shown that Rayleigh microwave scattering (RMS) can be used to obtain the absolute value of the electron density in CAP. An RMS apparatus titled the Microwave Electron Density Device (MEDD) has
David R. Scott +2 more
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Microwave Blood Plasma Defroster
Journal of Microwave Power and Electromagnetic Energy, 1991A microwave blood plasma defroster capable of thawing up to four bags of frozen blood plasma at a time is described. The unit stops automatically when the plasma reaches a preset temperature, and all operating parameters are monitored for safety. Comparative testing showed that blood plasma thawed in this device was indistinguishable from plasma thawed
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Journal of the Institution of Electrical Engineers, 1963
Interest in the use of plasma devices as amplifiers and oscillators at microwave frequencies has been stimulated by the increased knowledge of plasma physics gained from thermonuclear research. Although of small value to the microwave engineer at present, these techniques may provide the means of attaining higher operating frequencies than those ...
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Interest in the use of plasma devices as amplifiers and oscillators at microwave frequencies has been stimulated by the increased knowledge of plasma physics gained from thermonuclear research. Although of small value to the microwave engineer at present, these techniques may provide the means of attaining higher operating frequencies than those ...
openaire +1 more source