IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340)
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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
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
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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
Cell geometry designs for efficient plasma display panels
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Summary form only given, as follows. We use a two-dimensional self-consistent simulation model to study the effect of the geometric parameters on the operating voltages and the efficiency of a coplanar-electrode plasma display panel cell. For the standard coplanar-electrode geometry it is found that there is a trade-off between high efficiency and low operating voltages as the electrode gap, or ot......
#Geometry #Plasma displays #Voltage #Electrodes #Dielectrics #Space technology #Flat panel displays #HDTV #Cathode ray tubes #Solid modeling
The 6 MW, 110 GHz ECH system for the DIII-D tokamak
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Summary form only given. Six 110 GHz gyrotrons have been installed and are operational on the DIII-D tokamak. Three gyrotrons are built by Gycom and have a nominal rating of 750 kW and a 2 s pulse length, with the pulse length being determined by the maximum temperature allowed on the edge cooled Boron Nitride window. The other three gyrotrons were built by Communications and Power Industries (CPI......
#Tokamaks #Gyrotrons #Plasma temperature #Boron #Power industry #Chemical vapor deposition #Cooling #Transmission line measurements #Power transmission lines #Helium
Current status towards the development of a submillimeter-wave reflex klystron
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Summary form only given. The reflex klystron is a promising candidate for use as a source of submillimeter-wave power at the milliwatt level. Such sources are required to fulfill the requirements for small-footprint, cost-effective and efficient fundamental sources for medical imaging and remote sensing applications at terahertz frequencies. Dimensional constraints associated with traditional manu......
#Klystrons #Frequency #Submillimeter wave technology #Biomedical imaging #Remote sensing #Manufacturing #Electron sources #Impedance #Fabrication #Scattering parameters
Modeling of rod-pinch-diode performance at 2 to 4 MV
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Summary form only given. The rod-pinch diode has been scaled up successfully to 2 to 4 MV in experiments on the ASTERIX generator. Well-behaved impedance is achieved for anode-cathode (A-K) gaps /spl ges/ 3.75 mm at 2.7-MV peak voltage and /spl ges/ 6.5 mm at 4-MV peak voltage. Shots with smaller A-K gaps exhibit rapidly decreasing impedance. The electrical behavior of the diode is analyzed with t......
#Diodes #Plasma measurements #Impedance #Current measurement #Critical current #Anodes #Shape measurement #Voltage measurement #Cathodes #Plasma waves
Measurement of wall voltage in reset discharge of AC plasma display
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Summary form only given. In AC plasma display, it is very important to quantify the wall voltage induced by the wall charge accumulated on the dielectric surface. If we know the quantities of the wall voltage in each period of every sequence; reset period, address period and sustain period, then it helps us to design the optimal driving waveform for high efficiency plasma display.. The purpose of ......
#Voltage measurement #Plasma measurements #Plasma displays #Pulse measurements #Current measurement #Charge measurement #Writing #Dielectric measurements #Space vector pulse width modulation #Surface discharges
Simulation of charged cooled trapped ions
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Summary form only given. Future aspects of science and technology in many fields such as physics, chemistry, material science, electronics, biology, medicine, etc. are characterized by miniaturization down to an atomic level. One promising method that offers such miniaturization is the ion beam manipulation technology. Over the years we have developed methods dealing with manipulation of ions in i......
#Biological system modeling #Medical simulation #Chemical technology #Materials science and technology #Atom optics #Biomedical optical imaging #Particle beam optics #Optical buffering #Temperature distribution #Electron traps
Cross-field diffusion in magnetized plasma due to parametric excitation of convective cells
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Summary form only given, as follows. Cross-field diffusion due to the convective cells in a magnetoactive uniform plasma has been of current interest in plasma physics. In present report the diffusion in turbulent plasma under conditions of parametric interaction of lower hybrid waves with short-wavelength (k/spl rho//sub /spl perp/i/>>1, k/sub z/=0) and long-wavelength (k/spl rho//sub /spl perp/i......
#Plasma waves #Plasma transport processes #Electrodes #Low pass filters #Physics #Electrostatic analysis #Algorithm design and analysis #Pumps #Fluctuations #Laboratories